php-general Digest 17 May 2006 16:29:30 -0000 Issue 4133
php-general Digest 17 May 2006 16:29:30 - Issue 4133 Topics (messages 236319 through 236353): Re: 404 After Setting session.save_path to /tmp 236319 by: Chris 236320 by: Chris 236323 by: Mark Sargent 236324 by: Chris 236325 by: Mark Sargent 236327 by: Chris 236328 by: Mark Sargent 236342 by: Ron Clark Narorwed down my problem to one statement: 236321 by: John Meyer 236326 by: Paul Novitski PHPEditIni now supports Linux/Unix 236322 by: Jeremy C O'Connor A searching problem in lists 236329 by: mickb.free.fr 236331 by: Barry Re : a searching problem in lists 236330 by: mickb.free.fr 236339 by: Jim Moseby Converting characters 236332 by: Jonas Rosling 236333 by: Barry Re: PHP daemons 236334 by: Martin Marques PHP and mySQL getting smashed... 236335 by: Russell Jones 236336 by: Dave Goodchild 236337 by: Angelo Zanetti 236338 by: Jay Blanchard 236340 by: Alister Bulman 236347 by: Jochem Maas Re: Regex Help for URL's [ANSWER] 236341 by: Edward Vermillion Re: Security Concerns with Uploaded Images: 236343 by: Rory Browne 236344 by: George Pitcher 236353 by: Jason Wong Ajax (xmlHttpRequest) and session_start() problem. 236345 by: Mathijs 236346 by: Robert Cummings 236348 by: Mathijs 236349 by: Thomas Munz Warning: chmod(): Operation not permitted ? 236350 by: tedd 236351 by: Jochem Maas 236352 by: John Nichel Administrivia: To subscribe to the digest, e-mail: [EMAIL PROTECTED] To unsubscribe from the digest, e-mail: [EMAIL PROTECTED] To post to the list, e-mail: php-general@lists.php.net -- ---BeginMessage--- Mark Sargent wrote: Jochem Maas wrote: NO - DONT EVER DO THIS tmp/session files should not be stored in a directory that can be [potentially] read via http. .htaccess directives can be used to block access to the dir BUT I still would recommend keeping 'tmp' outside of the web root. just make sure 'tmp' is writable by the user the webserver is running as. Hi All, thanx. How do I determine what user httpd is running as? Cheers. Edit your httpd.conf file and look for user and group. -- Postgresql php tutorials http://www.designmagick.com/ ---End Message--- ---BeginMessage--- Mark Sargent wrote: Jochem Maas wrote: NO - DONT EVER DO THIS tmp/session files should not be stored in a directory that can be [potentially] read via http. .htaccess directives can be used to block access to the dir BUT I still would recommend keeping 'tmp' outside of the web root. just make sure 'tmp' is writable by the user the webserver is running as. Hi All, thanx. How do I determine what user httpd is running as? Cheers. I should say check your httpd.conf file for User and Group - they are capitalized. Alternatively: ps aux | grep httpd or ps aux | grep apache the first column is the user it's running as. or lastly, probably the quickest way, create a phpinfo page and look for User/Group -- Postgresql php tutorials http://www.designmagick.com/ ---End Message--- ---BeginMessage--- Chris wrote: I should say check your httpd.conf file for User and Group - they are capitalized. Alternatively: ps aux | grep httpd yes, did that one and see it as starting as root, then goijg to daemon. Now, if I add daemon to the root group, isn't that a security issue? Should I create a new group? Little confused? Cheers. Mark Sargent. ---End Message--- ---BeginMessage--- Mark Sargent wrote: Chris wrote: I should say check your httpd.conf file for User and Group - they are capitalized. Alternatively: ps aux | grep httpd yes, did that one and see it as starting as root, then goijg to daemon. Now, if I add daemon to the root group, isn't that a security issue? Should I create a new group? Little confused? Cheers. Big security issue - don't do it. ps au | grep apache root /usr/sbin/apache htdocs /usr/sbin/apache htdocs /usr/sbin/apache My apache is running as htdocs. So as root create a temp folder and chown it to htdocs: mkdir /my_temp_dir chown htdocs. /my_temp_dir Done. -- Postgresql php tutorials http://www.designmagick.com/ ---End Message--- ---BeginMessage--- Chris wrote: Big security issue - don't do it. ps au | grep apache root /usr/sbin/apache htdocs /usr/sbin/apache htdocs /usr/sbin/apache My apache is running as htdocs. So as root create a temp folder and chown it to htdocs: mkdir /my_temp_dir chown htdocs. /my_temp_dir Hi All, ok, created dir, added htdocs user/group and changed ownership of dir to them. Thing I'm gettin is, every time I make an adjustment to either php.ini or httpd.conf, and do a restart, I keep getting
Re: [PHP] 404 After Setting session.save_path to /tmp
Mark Sargent wrote: Chris wrote: I should say check your httpd.conf file for User and Group - they are capitalized. Alternatively: ps aux | grep httpd yes, did that one and see it as starting as root, then goijg to daemon. Now, if I add daemon to the root group, isn't that a security issue? Should I create a new group? Little confused? Cheers. Big security issue - don't do it. ps au | grep apache root /usr/sbin/apache htdocs /usr/sbin/apache htdocs /usr/sbin/apache My apache is running as htdocs. So as root create a temp folder and chown it to htdocs: mkdir /my_temp_dir chown htdocs. /my_temp_dir Done. -- Postgresql php tutorials http://www.designmagick.com/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] 404 After Setting session.save_path to /tmp
Chris wrote: Big security issue - don't do it. ps au | grep apache root /usr/sbin/apache htdocs /usr/sbin/apache htdocs /usr/sbin/apache My apache is running as htdocs. So as root create a temp folder and chown it to htdocs: mkdir /my_temp_dir chown htdocs. /my_temp_dir Hi All, ok, created dir, added htdocs user/group and changed ownership of dir to them. Thing I'm gettin is, every time I make an adjustment to either php.ini or httpd.conf, and do a restart, I keep getting a 404 error for all pages. Which only corrects when doing a reboot of the box. This was happening before I just followed your last steps. Thoughts? Cheers. Mark Sargent. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Narorwed down my problem to one statement:
At 09:38 PM 5/16/2006, John Meyer wrote: $sql = INSERT INTO BOOKS(CopyrightYear,CoverType,DatePurchased,EditionNumber,ISBNNumber,Notes,Pages,Publisher,LOCNumber) VALUES(\ . $_POST[copyrightyear] . \,\ . $_POST[covertype] . \,\ . $_POST[datepurchased] . \, . $_POST[editionnumber] . ,\ . $_POST[isbn] . \,\ . addslashes($_POST[notes]) . \, . (isset($_POST[numberofpages])?$_POST[numberofpages]:0) . ,\ . $_POST[publisher] . \,\ . $_POST[locnumber] . \); Okay, when $_POST[notes] contains quotes, it seems to break the series, ie returns an error at that point of the SQL statement, even with addslashes(), am I doing something wrong there? John, I wasn't able to get your statement to break regardless of the content of $_POST[notes], so I'm inclined to think the problem doesn't lie with embedded quotes alone. Try displaying the value of $sql when it fails in MySQL. Without that evidence, your problem seems impossible to solve. I'm suspicious of this conditional expression: (isset($_POST[numberofpages])?$_POST[numberofpages]:0) If $_POST[numberofpages] is set but contains non-numeric content, the query will fail. Here are two other points tangential to your question: By feeding user input directly into an SQL query, you're creating an unnecessary vulnerability in your code. See SQL Injection at http://php.net/manual/en/security.database.sql-injection.php I find the concatenation with escaped quotes messy and difficult to proofread and modify. My example below is somewhat exaggerated for effect, but consider using heredoc syntax for ease of reading and a couple of custom functions to make strings numbers SQL-safe: ___ $copyrightyear = prepString($_POST[copyrightyear]); $covertype = prepString($_POST[covertype]); $datepurchased = prepString($_POST[datepurchased]); $editionnumber = prepNumber($_POST[editionnumber]); $notes = prepString($_POST[notes]); $numberofpages = prepNumber($_POST[numberofpages]); $publisher = prepString($_POST[publisher]); $locnumber = prepString($_POST[locnumber]); $sql = heredocSQL INSERT INTO BOOKS ( CopyrightYear, CoverType, DatePurchased, EditionNumber, ISBNNumber, Notes, Pages, Publisher, LOCNumber ) VALUES ( $copyrightyear, $covertype, $datepurchased, $editionnumber, $notes, $numberofpages, $publisher, $locnumber ); heredocSQL; ___ Paul -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] 404 After Setting session.save_path to /tmp
Mark Sargent wrote: Chris wrote: Big security issue - don't do it. ps au | grep apache root /usr/sbin/apache htdocs /usr/sbin/apache htdocs /usr/sbin/apache My apache is running as htdocs. So as root create a temp folder and chown it to htdocs: mkdir /my_temp_dir chown htdocs. /my_temp_dir Hi All, ok, created dir, added htdocs user/group and changed ownership of dir to them. Thing I'm gettin is, every time I make an adjustment to either php.ini or httpd.conf, and do a restart, I keep getting a 404 error for all pages. Which only corrects when doing a reboot of the box. This was happening before I just followed your last steps. Thoughts? Cheers. Sounds like you're using the wrong script to restart apache. What command are you using? Rebooting will most likely pick up the /etc/init.d/apache or /etc/init.d/httpd script. -- Postgresql php tutorials http://www.designmagick.com/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] 404 After Setting session.save_path to /tmp
Chris wrote: Sounds like you're using the wrong script to restart apache. What command are you using? service httpd restart Rebooting will most likely pick up the /etc/init.d/apache or /etc/init.d/httpd script. Have this in /etc/rc.local on Fedora 5, startApache=/usr/local/apache2/bin/apachectl if [ -f $startApache ] ; then $startApache start fi and I see that I have left off start at the end of startApache. Cheers. Mark Sargent. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] A searching problem in lists
Hello, I'm not a Perl guru so I (still) have problems :-) I use the following date structure, quite classic : a list of lists. I have two instances of this structure, let's take a simple example : list 1 : [ [toto,tata],[toto,titi] ] list 2 : [ [toto,tutu],[tata,titi],[toto,titi] ] My question is : is there an efficient way to make this kind of research : I want to know if [toto,titi] from list 1 is present in list 2. Thanks for help. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re : a searching problem in lists
Oops, sorry for my last mail. Not the good mailing-list :-) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: A searching problem in lists
[EMAIL PROTECTED] schrieb: Hello, I'm not a Perl guru so I (still) have problems :-) And this is not a Perl mailinglist so we have the same problem :) -- Smileys rule (cX.x)C --o(^_^o) Dance for me! ^(^_^)o (o^_^)o o(^_^)^ o(^_^o) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Converting characters
Hi, the PHP newbie is here again asking questions. Is there anyway in PHP to convert none international characters so the are displayed correct? In my case I have lots of data in the database with å,ä and ö. Thanks // Jonas -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: Converting characters
Jonas Rosling schrieb: Hi, the PHP newbie is here again asking questions. Is there anyway in PHP to convert none international characters so the are displayed correct? In my case I have lots of data in the database with å,ä and ö. Thanks // Jonas displayed where? in html with htmlentities. otherwise you should use a utf-8 encoding -- Smileys rule (cX.x)C --o(^_^o) Dance for me! ^(^_^)o (o^_^)o o(^_^)^ o(^_^o) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP daemons
On Tue, 16 May 2006, Richard Lynch wrote: On Tue, May 16, 2006 6:27 am, Martin Marques wrote: In the first daemon all I have to do to kill it is execute a pkill server_name. But with the new daemon (the object orientaded one) it doesn't die. After you pkill it, does it still work? Yes, I can still connect to the socket and send commands to it. Or is it a zombie? bugs:~# ps auxw | grep php root 29327 0.0 0.5 16992 2288 ?SMay15 0:00 /usr/bin/php -q /usr/local/php/printSocket/printSocket.php root 4066 0.0 1.3 17424 5352 ?SMay16 0:00 /usr/bin/php -q /usr/local/php/offline/offlineSocket.php bugs:~# pkill printSocket.php bugs:~# ps auxw | grep php root 4066 0.0 1.3 17424 5352 ?SMay16 0:00 /usr/bin/php -q /usr/local/php/offline/offlineSocket.php bugs:~# pkill offlineSocket.php bugs:~# ps auxw | grep php root 4066 0.0 1.3 17424 5352 ?SMay16 0:00 /usr/bin/php -q /usr/local/php/offline/offlineSocket.php It's possible PHP's shutdown functions trying to close the sockets and destroy the instances have a bug... You could try to pastebin the code somewhere. The code from the socket that accepts the kill is at: http://bugs.unl.edu.ar/~martin/socket1.phps The code of the socket that doesn't get killed is here: http://bugs.unl.edu.ar/~martin/socket2.tar -- 21:50:04 up 2 days, 9:07, 0 users, load average: 0.92, 0.37, 0.18 - Lic. Martín Marqués | SELECT 'mmarques' || Centro de Telemática| '@' || 'unl.edu.ar'; Universidad Nacional| DBA, Programador, del Litoral | Administrador - -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] PHP and mySQL getting smashed...
I have a site that is getting 30K+ traffic daily and it is smashing mySQL - any ideas on what to do to make the mysql connections more efficient, or anything in general. No bandwidth issue here, just the server getting killed. Thanks
Re: [PHP] PHP and mySQL getting smashed...
I have a site that is getting 30K+ traffic daily and it is smashing mySQL - any ideas on what to do to make the mysql connections more efficient, or anything in general. No bandwidth issue here, just the server getting killed. ...I may be wrong but using persistent connections (mysql_pconnect) may help. Also, optimise your tables and use the explain command to see how efficient your queries are. -- http://www.web-buddha.co.uk dynamic web programming from Reigate, Surrey UK (php, mysql, xhtml, css) look out for project karma, our new venture, coming soon!
Re: [PHP] PHP and mySQL getting smashed...
perhaps post some code so we can look at how you doing your queries... HTH Angelo Zanetti Z Logic www.zlogic.co.za [c] +27 72 441 3355 [t] +27 21 469 1052 [f] +27 86 681 5885 Dave Goodchild wrote: I have a site that is getting 30K+ traffic daily and it is smashing mySQL - any ideas on what to do to make the mysql connections more efficient, or anything in general. No bandwidth issue here, just the server getting killed. ...I may be wrong but using persistent connections (mysql_pconnect) may help. Also, optimise your tables and use the explain command to see how efficient your queries are. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] PHP and mySQL getting smashed...
[snip] I have a site that is getting 30K+ traffic daily and it is smashing mySQL - any ideas on what to do to make the mysql connections more efficient, or anything in general. No bandwidth issue here, just the server getting killed. [/snip] Without seeing any code or table information my bet would be that none of your tables are indexed properly. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Re : a searching problem in lists
Oops, sorry for my last mail. Not the good mailing-list :-) Au contraire. This *IS* the good mailing list. Just not the *right* one. ;-) JM -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP and mySQL getting smashed...
On 17/05/06, Dave Goodchild [EMAIL PROTECTED] wrote: I have a site that is getting 30K+ traffic daily and it is smashing mySQL - any ideas on what to do to make the mysql connections more efficient, or anything in general. No bandwidth issue here, just the server getting killed. ...I may be wrong but using persistent connections (mysql_pconnect) may help. Also, optimise your tables and use the explain command to see how efficient your queries are. And caching things that don't need to looked up form the database right now. Even the fastest server in the world would wilt under a slashdotting, if it had to do a dozen big queries for every page display. Meanwhile a Pentium3 with a decent network can serve hundreds of requests a second of a few static pages. Alister -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Regex Help for URL's [ANSWER]
On May 16, 2006, at 7:53 PM, Chrome wrote: -Original Message- From: Robert Samuel White [mailto:[EMAIL PROTECTED] Sent: 17 May 2006 01:42 To: php-general@lists.php.net Subject: RE: [PHP] Regex Help for URL's [ANSWER] That's what I was doing. I was parsing A:HREF, IMG:SRC, etc. But when I implemented a new feature on my network, where you could click on a row and have it take you to another domain, I need a better solution. Go to http://www.enetwizard.ws and it might make more sense. All the links on the left have an ONCLICK=location.href = '' attribute in the TR tag. This solution allowed me to make sure those links included the session information, just like the A:HREF links do. It also had the advantage of updating the links in my CSS. O that breaks accessibility standards! Compliment the 'onclick's with onkeydown at least :) But still you get a solid onclick=... scenario If these are visible in the source then they are fairly easy to pick out Though you may need more than 1 regex ;) My complaint here is, don't break accessibility :) And don't forget the folks who have javascript turned off or are using text based browsers too. Ed -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] 404 After Setting session.save_path to /tmp
Mark Sargent wrote: Chris wrote: Big security issue - don't do it. ps au | grep apache root /usr/sbin/apache htdocs /usr/sbin/apache htdocs /usr/sbin/apache My apache is running as htdocs. So as root create a temp folder and chown it to htdocs: mkdir /my_temp_dir chown htdocs. /my_temp_dir Hi All, ok, created dir, added htdocs user/group and changed ownership of dir to them. Thing I'm gettin is, every time I make an adjustment to either php.ini or httpd.conf, and do a restart, I keep getting a 404 error for all pages. Which only corrects when doing a reboot of the box. This was happening before I just followed your last steps. Thoughts? Cheers. Mark Sargent. I thought you said in earlier email that your apache was running as user daemon. The tmp directory has to be owned by the user running apache. If you want to run apache as user apache group apache then you will have to edit httpd.conf and change the User and Group directives. Otherwise chown chgrp the tmp directory to the user/group that is listed in the httpd.conf file. -- Ron Clark System Administrator Armstrong Atlantic State University 11935 Abercorn Street Savannah, Ga 31419 Phone: 912 961 3234 Fax: 912 927 5353 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Security Concerns with Uploaded Images:
On 5/16/06, Richard Lynch [EMAIL PROTECTED] wrote: On Mon, May 15, 2006 1:58 am, Jason Wong wrote: 2) the uploaded file is a script (perl/php/python/etc) In the case of (2), if the script relies on its shebang line to execute Not necessarily -- What if I upload an image file named badscript.php and then I surf to it, after it's in your /images directory? When using the php apache module, from a OS permissions, the Server reads as opposed to executes php code. .php files don't generally need to be executable IIRC. Game Over If you want Shifflet's view, just go to http://phpsec.org -- Like Music? http://l-i-e.com/artists.htm -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Security Concerns with Uploaded Images:
On Mon, May 15, 2006 1:58 am, Jason Wong wrote: 2) the uploaded file is a script (perl/php/python/etc) In the case of (2), if the script relies on its shebang line to execute Not necessarily -- What if I upload an image file named badscript.php and then I surf to it, after it's in your /images directory? On my sites, I know aht file extensions that I will allow, so block (by script) anything that doesn't match - in my case, that's '.tif' and '.pdf'. George -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Ajax (xmlHttpRequest) and session_start() problem.
I Have an very strange problem. When i execute an very simple Ajax request to an PHP script wich just print one line and i put an sleep(20) infront of it, it works perfectly when i refresh the page. BUT.. When i put session_start() at the top, i can't refresh the page anymore. It won't refresh untill the server responed. When i remove the session_start(), i can refresh anytime i want. Is this a know problem? Does someone knows an solution? Thx for the help. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Ajax (xmlHttpRequest) and session_start() problem.
On Wed, 2006-05-17 at 10:11, Mathijs wrote: I Have an very strange problem. When i execute an very simple Ajax request to an PHP script wich just print one line and i put an sleep(20) infront of it, it works perfectly when i refresh the page. BUT.. When i put session_start() at the top, i can't refresh the page anymore. It won't refresh untill the server responed. When i remove the session_start(), i can refresh anytime i want. Is this a know problem? Does someone knows an solution? PHP sessions use locking to avoid race conditions. So you sleep for 20 seconds keeps the lock for just as long, this has the effect of blocking all other scripts for the same session. To avoid this, grab the session data you need, and close the session as fast as possible. Additionally, it's probably a very bad idea to keep the web server waiting for 20 seconds for no good reason. Why not have your javascript do the waiting? Cheers, Rob. -- .. | InterJinn Application Framework - http://www.interjinn.com | :: | An application and templating framework for PHP. Boasting | | a powerful, scalable system for accessing system services | | such as forms, properties, sessions, and caches. InterJinn | | also provides an extremely flexible architecture for | | creating re-usable components quickly and easily. | `' -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP and mySQL getting smashed...
Jay Blanchard wrote: [snip] I have a site that is getting 30K+ traffic daily and it is smashing mySQL - any ideas on what to do to make the mysql connections more efficient, or anything in general. No bandwidth issue here, just the server getting killed. [/snip] Without seeing any code or table information my bet would be that none of your tables are indexed properly. and/or that the OP is using some killing JOINS in his queries - these often have a detremental effect regardless of indexes. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Ajax (xmlHttpRequest) and session_start() problem.
Robert Cummings wrote: On Wed, 2006-05-17 at 10:11, Mathijs wrote: I Have an very strange problem. When i execute an very simple Ajax request to an PHP script wich just print one line and i put an sleep(20) infront of it, it works perfectly when i refresh the page. BUT.. When i put session_start() at the top, i can't refresh the page anymore. It won't refresh untill the server responed. When i remove the session_start(), i can refresh anytime i want. Is this a know problem? Does someone knows an solution? PHP sessions use locking to avoid race conditions. So you sleep for 20 seconds keeps the lock for just as long, this has the effect of blocking all other scripts for the same session. To avoid this, grab the session data you need, and close the session as fast as possible. Additionally, it's probably a very bad idea to keep the web server waiting for 20 seconds for no good reason. Why not have your javascript do the waiting? Cheers, Rob. This whas just an test example i talked about. irl, i have an script that does an search on the server for texts in files. This search goes through an ajax request. The page that is requested uses $_SESSION. Therefore i need session_start(). This search can take a while, and if i want to refresh the page, because i want to have an other search or whatever, i just can't. This because, for some reason, when session_start() gets called, it locks the refreshing capeabileties of the browser. Also, you say to close the session, mabye a stupid question, but how If you need more info, just ask :).. Thx for the quick reply :). Kind Regards, -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Ajax (xmlHttpRequest) and session_start() problem.
session_write_close(); Ex: session_start(); $asdf = $_SESSION; //-- get all datas session_write_close(); //-- close session on Wednesday 17 May 2006 16:36, Mathijs wrote: Robert Cummings wrote: On Wed, 2006-05-17 at 10:11, Mathijs wrote: I Have an very strange problem. When i execute an very simple Ajax request to an PHP script wich just print one line and i put an sleep(20) infront of it, it works perfectly when i refresh the page. BUT.. When i put session_start() at the top, i can't refresh the page anymore. It won't refresh untill the server responed. When i remove the session_start(), i can refresh anytime i want. Is this a know problem? Does someone knows an solution? PHP sessions use locking to avoid race conditions. So you sleep for 20 seconds keeps the lock for just as long, this has the effect of blocking all other scripts for the same session. To avoid this, grab the session data you need, and close the session as fast as possible. Additionally, it's probably a very bad idea to keep the web server waiting for 20 seconds for no good reason. Why not have your javascript do the waiting? Cheers, Rob. This whas just an test example i talked about. irl, i have an script that does an search on the server for texts in files. This search goes through an ajax request. The page that is requested uses $_SESSION. Therefore i need session_start(). This search can take a while, and if i want to refresh the page, because i want to have an other search or whatever, i just can't. This because, for some reason, when session_start() gets called, it locks the refreshing capeabileties of the browser. Also, you say to close the session, mabye a stupid question, but how If you need more info, just ask :).. Thx for the quick reply :). Kind Regards, -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Warning: chmod(): Operation not permitted ?
Hi (please insert your preference): This should be simple, but I'm having problems. I have a program that uploads an image file and then tries to set the permissions for the image (to be altered later). However, I get a Warning: chmod(): Operation not permitted error when trying to set the permission, what gives? If my program created the file, shouldn't it have permission to set the files permissions? What am I not understanding? Thanks. tedd -- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Warning: chmod(): Operation not permitted ?
tedd wrote: Hi GANG: :-) This should be simple, but I'm having problems. I have a program that uploads an image file and then tries to set the permissions for the image (to be altered later). However, I get a Warning: chmod(): Operation not permitted error when trying to set the permission, what gives? If my program created the file, shouldn't it have permission to set the files permissions? chances are that the file is created as user nobody, your not nobody ;-), ergo you can't chmod it ... can't remember the last time I didn't have root access to configure/fuck (you pick) the server the way I wanted it. I'm sure someone here knows exactly how to sort this issue without editing the httpd.conf. What am I not understanding? Thanks. tedd -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Warning: chmod(): Operation not permitted ?
tedd wrote: Hi (please insert your preference): This should be simple, but I'm having problems. I have a program that uploads an image file and then tries to set the permissions for the image (to be altered later). However, I get a Warning: chmod(): Operation not permitted error when trying to set the permission, what gives? If my program created the file, shouldn't it have permission to set the files permissions? What am I not understanding? Without seeing code, permissions of the directories, what sticky bits might or might not be set, etc., you could not be understanding many thingsor just onewho knows. http://www.google.com/search?q=php+%22Warning%3A+chmod%28%29%3A+Operation+not+permitted%22btnG=Search -- John C. Nichel IV Programmer/System Admin (ÜberGeek) Dot Com Holdings of Buffalo 716.856.9675 [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Security Concerns with Uploaded Images:
On Tuesday 16 May 2006 07:45, Richard Lynch wrote: On Mon, May 15, 2006 1:58 am, Jason Wong wrote: 2) the uploaded file is a script (perl/php/python/etc) In the case of (2), if the script relies on its shebang line to execute Not necessarily -- What if I upload an image file named badscript.php and then I surf to it, after it's in your /images directory? I was assuming that any developer who allowed image files to be named *.php would be hung, drawn quartered and shot a few times for good measure :) -- Jason Wong - Gremlins Associates - www.gremlins.biz Open Source Software Systems Integrators * Web Design Hosting * Internet Intranet Applications Development * -- Search the list archives before you post http://marc.theaimsgroup.com/?l=php-general -- New Year Resolution: Ignore top posted posts -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Ajax (xmlHttpRequest) and session_start() problem.
Thank you very much :D. Ill just create an class which will handle this :). It works like a charm.. Thx. Thomas Munz wrote: session_write_close(); Ex: session_start(); $asdf = $_SESSION; //-- get all datas session_write_close(); //-- close session on Wednesday 17 May 2006 16:36, Mathijs wrote: Robert Cummings wrote: On Wed, 2006-05-17 at 10:11, Mathijs wrote: I Have an very strange problem. When i execute an very simple Ajax request to an PHP script wich just print one line and i put an sleep(20) infront of it, it works perfectly when i refresh the page. BUT.. When i put session_start() at the top, i can't refresh the page anymore. It won't refresh untill the server responed. When i remove the session_start(), i can refresh anytime i want. Is this a know problem? Does someone knows an solution? PHP sessions use locking to avoid race conditions. So you sleep for 20 seconds keeps the lock for just as long, this has the effect of blocking all other scripts for the same session. To avoid this, grab the session data you need, and close the session as fast as possible. Additionally, it's probably a very bad idea to keep the web server waiting for 20 seconds for no good reason. Why not have your javascript do the waiting? Cheers, Rob. This whas just an test example i talked about. irl, i have an script that does an search on the server for texts in files. This search goes through an ajax request. The page that is requested uses $_SESSION. Therefore i need session_start(). This search can take a while, and if i want to refresh the page, because i want to have an other search or whatever, i just can't. This because, for some reason, when session_start() gets called, it locks the refreshing capeabileties of the browser. Also, you say to close the session, mabye a stupid question, but how If you need more info, just ask :).. Thx for the quick reply :). Kind Regards, --- avast! Antivirus: Inbound message clean. Virus Database (VPS): 0620-0, 05/15/2006 Tested on: 5/17/2006 6:37:16 PM avast! - copyright (c) 1988-2006 ALWIL Software. http://www.avast.com --- avast! Antivirus: Outbound message clean. Virus Database (VPS): 0620-0, 05/15/2006 Tested on: 5/17/2006 6:38:04 PM avast! - copyright (c) 1988-2006 ALWIL Software. http://www.avast.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Security Concerns with Uploaded Images:
Richard Lynch wrote: On Mon, May 15, 2006 1:58 am, Jason Wong wrote: 2) the uploaded file is a script (perl/php/python/etc) In the case of (2), if the script relies on its shebang line to execute Not necessarily -- What if I upload an image file named badscript.php and then I surf to it, after it's in your /images directory? Couldn't you just use the apache directory option to make sure that php can't be executed from the /images directory... wonder if that is possible. Cheers Richard -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Regex Help for URL's
This one time, at band camp, Robert Samuel White [EMAIL PROTECTED] wrote:
Don't be rude. I've already don't all of that. Nothing came up. I've been
programming for 20 years (since I was 11 years old) so I'm not a slacker
when it comes to learning new things, however, I have always found regular
expressions to be extremely difficult. Someone here might have the answer I
need, and if so, I'd appreciate a response. If you don't know the answer,
don't reply. Simple enough, don't you think?
Sorry, I missed most of this...
From what I gather you wish to extract urls from text?
if so..
function getLinks($string){
// regex to get the links
preg_match_all(|http:?([^\' ]+)|i, $string, $arrayoflinks);
return $arrayoflinks;
}
Also check out this on line tutorial for regex geared towards PHP
http://phpro.org/tutorials/Introduction-to-PHP-Regular-Expressions.html
Kind regards
Kevin
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[PHP] Handling Large Check Box Data
Ave, I¹m a little confused as to what¹s the best way to handle this. I have a form which, apart from lots of other fields, has a set of 25 30 Check Boxes, each of which asks the user for some kind of information which the user can check or leave unchecked. The information each Check Box collects will also appear in the ³Listing² for users to view once the user has completed submitted the form. Furthermore, there is an Advanced Search also available to users which will also provide the same 25 - 30 check boxes which define the search criteria. I¹m not sure what¹s the best, most efficient way to do this. The tedious way to do this is to make 30 fields in the mySQL database, and if the check box is checked, the data goes into the corresponding field... And similarly listing the data from the field if field is non-empty And similarly including each field in the Search options. I want suggestions for a better/faster way to do this. I did think about creating a single field and storing the data from each checked¹ check box as comma separated values in the single field. I¹m not sure how to do that and if that¹s the best way But even if I can, I¹m not sure how to get the data to display separately out of that field in the Listings view and more importantly how to include that data in the Search options. Any help would be appreciated. Thanks, Rahul S. Johari Coordinator, Internet Administration Informed Marketing Services Inc. 500 Federal Street, Suite 201 Troy NY 12180 Tel: (518) 687-6700 x154 Fax: (518) 687-6799 Email: [EMAIL PROTECTED] http://www.informed-sources.com
Re: [PHP] Handling Large Check Box Data
Well, listing all the values in a comma separated list in the DB would be fairly simple to parse, check out: http://www.php.net/manual/en/function.explode.php As far as what is better depends on many things... 1). Maintaining the code, might be better to have each check box have its own field, will certainly cut down on development/debugging. 2). Performance...don't know if it is faster for PHP to parse through a comma separated list or parse through a larger DB record set. I guess if this is really important to you, you might want to attempt both ways to see on performance. -Brad Rahul S. Johari wrote: Ave, I¹m a little confused as to what¹s the best way to handle this. I have a form which, apart from lots of other fields, has a set of 25 30 Check Boxes, each of which asks the user for some kind of information which the user can check or leave unchecked. The information each Check Box collects will also appear in the ³Listing² for users to view once the user has completed submitted the form. Furthermore, there is an Advanced Search also available to users which will also provide the same 25 - 30 check boxes which define the search criteria. I¹m not sure what¹s the best, most efficient way to do this. The tedious way to do this is to make 30 fields in the mySQL database, and if the check box is checked, the data goes into the corresponding field... And similarly listing the data from the field if field is non-empty And similarly including each field in the Search options. I want suggestions for a better/faster way to do this. I did think about creating a single field and storing the data from each Œchecked¹ check box as comma separated values in the single field. I¹m not sure how to do that and if that¹s the best way But even if I can, I¹m not sure how to get the data to display separately out of that field in the Listings view and more importantly how to include that data in the Search options. Any help would be appreciated. Thanks, Rahul S. Johari Coordinator, Internet Administration Informed Marketing Services Inc. 500 Federal Street, Suite 201 Troy NY 12180 Tel: (518) 687-6700 x154 Fax: (518) 687-6799 Email: [EMAIL PROTECTED] http://www.informed-sources.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Handling Large Check Box Data
2006/5/17, Rahul S. Johari [EMAIL PROTECTED]: Ave, I¹m a little confused as to what¹s the best way to handle this. I have a form which, apart from lots of other fields, has a set of 25 30 Check Boxes, each of which asks the user for some kind of information which the user can check or leave unchecked. The information each Check Box collects will also appear in the ³Listing² for users to view once the user has completed submitted the form. Furthermore, there is an Advanced Search also available to users which will also provide the same 25 - 30 check boxes which define the search criteria. I¹m not sure what¹s the best, most efficient way to do this. The tedious way to do this is to make 30 fields in the mySQL database, and if the check box is checked, the data goes into the corresponding field... And similarly listing the data from the field if field is non-empty And similarly including each field in the Search options. I want suggestions for a better/faster way to do this. I did think about creating a single field and storing the data from each Œchecked¹ check box as comma separated values in the single field. I¹m not sure how to do that and if that¹s the best way But even if I can, I¹m not sure how to get the data to display separately out of that field in the Listings view and more importantly how to include that data in the Search options. Any help would be appreciated. Thanks, Rahul S. Johari Coordinator, Internet Administration Informed Marketing Services Inc. 500 Federal Street, Suite 201 Troy NY 12180 Tel: (518) 687-6700 x154 Fax: (518) 687-6799 Email: [EMAIL PROTECTED] http://www.informed-sources.com You should consider using MySQL special column type SET: http://dev.mysql.com/doc/refman/5.1/en/set.html Or encoding each checkbox status as a binary bit in an integer (which is what MySQL does when using a SET column).
Re: [PHP] Handling Large Check Box Data
Martin Alterisio wrote: 2006/5/17, Rahul S. Johari [EMAIL PROTECTED]: ... You should consider using MySQL special column type SET: http://dev.mysql.com/doc/refman/5.1/en/set.html Or encoding each checkbox status as a binary bit in an integer I was going to suggest this also- if nothing else it would be a cool way to learn a bit (pun intended :-) about bitmask/bitfields/bitwise-operations. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Fast search
On 17/05/06, René Fournier [EMAIL PROTECTED] wrote:
Looking for suggestions on the most compute-efficient way to search
variable-length strings (~200 characters) for the occurrence of one
of about 100 possible needles. In other words:
$needles = array ( 1 = Hello Jim , 2 = Yellow Banana , 3 =
Red Car, ... etc (100 elements)
$haystack = Once upon a time there was a programming language that
everyone loved. Its name was PHP, and the people that worked with it
also liked Yellow Bananas. One day...;
What version of php?
If you're using php5 then you could do:
?php
$count = 0;
str_replace($needles, '', $haystack, $count);
if ($count) { /* there was a match */ }
?
-robin
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Re: [PHP] Handling Large Check Box Data
I did something similar recently. Basically I have one MySQL field to
handle several dozen checkboxes, my situation though was where the
checkboxes are numerically sequential though so I am not sure if this
helps. I also had only a couple hours to do this from start to finish
so I am sure there is a better way, but maybe this helps.
I wrote a function that generates the row of checkboxes, then a
function that combines them all into one field and so the status of
every checkbox is in one field.
Function generates the checkboxes and checks in the array if that
checkbox is checked or not.
function row_generator($row,$number,$array)
{
echo \ntr;
echo \n\tth align=\center\ valign=\top\Row $row/th;
$i = 1;
while ($i = $number)
{
if ($i 10)
{ $row_number = {$row}-0{$i}; }
else
{ $row_number = {$row}-{$i}; }
echo \n\ttd align=\center\ valign=\top\;
echo input type=\checkbox\ name=\$row_number\ id=\$row_number
\;
if (strstr($array,$row_number) === FALSE)
{ echo ; }
else
{ echo CHECKED; }
echo ;
echo br;
echo $i;
echo /td;
$i++;
}
echo \n/tr;
}
In use:
$seats = $row['seats'];
row_generator(A,23,$seats);
Collect the posted Data and then later this gets input into a database
$poster_A = ;
$i = 1;
while ($i = 30)
{
if ($i 10)
{ $r = 0{$i}; }
else
{ $r = $i;}
if (isset($_POST[A-$r]))
{ $poster_A .= A-$r;
$poster_A .= :; }
$i++;
}
$seats = ({$poster_A}{$poster_B} etc);
$query = UPDATE seating_chart SET
seats = '$seats'
WHERE season = '2006';
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On May 17, 2006, at 11:21 AM, Rahul S. Johari wrote:
Ave,
I’m a little confused as to what’s the best way to handle this.
I have a form which, apart from lots of other fields, has a set of
25 – 30
Check Boxes, each of which asks the user for some kind of
information which
the user can check or leave unchecked.
The information each Check Box collects will also appear in the
“Listing”
for users to view once the user has completed submitted the form.
Furthermore, there is an Advanced Search also available to users
which will
also provide the same 25 - 30 check boxes which define the search
criteria.
I’m not sure what’s the best, most efficient way to do this.
The tedious way to do this is to make 30 fields in the mySQL
database, and
if the check box is checked, the data goes into the corresponding
field...
And similarly listing the data from the field if field is non-
empty And
similarly including each field in the Search options.
I want suggestions for a better/faster way to do this. I did think
about
creating a single field and storing the data from each ‘checked’
check box
as comma separated values in the single field. I’m not sure how to
do that
and if that’s the best way But even if I can, I’m not sure how
to get
the data to display separately out of that field in the Listings
view and
more importantly how to include that data in the Search options.
Any help would be appreciated.
Thanks,
Rahul S. Johari
Coordinator, Internet Administration
Informed Marketing Services Inc.
500 Federal Street, Suite 201
Troy NY 12180
Tel: (518) 687-6700 x154
Fax: (518) 687-6799
Email: [EMAIL PROTECTED]
http://www.informed-sources.com
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Re: [PHP] Fast search
You can make a pretty effective time/memory tradeoff -- particularly
if your array of patterns is relatively fixed -- but unless you re-
implement this in C, it will probably be slower than a brute force
approach with the str* functions unless you are searching for a
fairly huge number of needles.
Below, I build a tree of pattern matches, which you navigate branch-
by-branch by using successive letters of the pattern. So, after the
tree is built, the index $tree[ 'h' ][ 'a' ][ 't' ] exists and has
the value `true'. To search the string, you push cursors onto a
stack, advance them as you advance through the string, and destroy
them when they hit a dead end.
This has a worst case of O( N^2 ) (on the length of the string),
which happens when you search for patterns like a
and b in the string h. The
average case for random or typical strings should be very close to O
( N ). Critically, search time is a function only of the length of
the string, not of the number of patterns. Memory usage is also only
a function of the size of the character set and the length of the
longest pattern, not of the total number of patterns.
This particular implementation has some nice side-effects; uncomment
the var_dump() line and note how 'pirate' and 'firm' have been
optimized out of the tree in favor of 'pir' and 'fir'.
Evan
?php
$pattern = array(
'hat'
,'hut'
,'blue dog'
,'blue cat'
,'pirate'
,'pir'
,'fir'
,'firm'
);
$tree = array( );
foreach( $pattern as $str ) {
$len = strlen( $str );
$cursor = $tree;
for( $ii = 0; $ii $len; $ii++ ) {
if( !isset( $cursor[ $str[ $ii ] ] ) ) {
$cursor[ $str[ $ii ] ] = array( );
}
$cursor = $cursor[ $str[ $ii ] ];
if( $cursor === true ) break;
}
$cursor = true;
}
/* var_dump
( $tree ); */
$corpus = 'lorem ipsum dolor sur amet pi blue do he hi h fipir
slog';
$clen = strlen( $corpus );
$stack = array( );
for( $ii = 0; $ii $clen; $ii++ ) {
$c = $corpus[ $ii ];
foreach( $stack as $k = $_ ) {
if( isset( $stack[ $k ][ $c ] ) ) {
if( $stack[ $k ][ $c ] === true ) {
die( 'Matched at position '.$ii );
}
$stack[ $k ] = $stack[ $k ][ $c ];
}
else {
unset( $stack[ $k ] );
}
}
if( isset( $tree[ $c ] ) ) {
$stack[] = $tree[ $c ];
}
}
die( 'Did not find a match.' );
?
On May 17, 2006, at 12:37 PM, René Fournier wrote:
Looking for suggestions on the most compute-efficient way to search
variable-length strings (~200 characters) for the occurrence of one
of about 100 possible needles. In other words:
$needles = array ( 1 = Hello Jim , 2 = Yellow Banana , 3 =
Red Car, ... etc (100 elements)
$haystack = Once upon a time there was a programming language that
everyone loved. Its name was PHP, and the people that worked with
it also liked Yellow Bananas. One day...;
Now perhaps I'm blind, but I can't see an obvious string or array
function that simply allows you to use an array as a needle while
searching a string haystack. What I'm really looking for is
something like the reverse of in_array.
The obvious thing would be to loop through the needles and run
substr_count on the haystack... But is there a faster way?
...Rene
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[PHP] Simple XML array count??
I'm using SimpleXML to go through a Google search result and I'm not quite understanding something. The variable $xml-RES-R is an array of 9 items and each item is an object containing information (see var dump below). So when I try to do count($xml-RES-R); it returns a number or 1 instead a number of 10. Also, when I do a print_r($xml-RES-R); all I get is a dump of $xml-RES-R[0] and not the rest of the array. I'm not quite sure what is going on? I'm using PHP 5.0.4 maybe there's a bug? SimpleXMLElement Object ( [TM] = 0.081574 [Q] = benefits [PARAM] = Array ( [0] = SimpleXMLElement Object ( ) [1] = SimpleXMLElement Object ( ) [2] = SimpleXMLElement Object ( ) [3] = SimpleXMLElement Object ( ) [4] = SimpleXMLElement Object ( ) [5] = SimpleXMLElement Object ( ) [6] = SimpleXMLElement Object ( ) [7] = SimpleXMLElement Object ( ) [8] = SimpleXMLElement Object ( ) ) [RES] = SimpleXMLElement Object ( [M] = 1830 [FI] = SimpleXMLElement Object ( ) [NB] = SimpleXMLElement Object ( [NU] = /search?q=benefitssite=default_collectionhl=enlr=ie=UTF-8output=xml_no_ dtdclient=default_frontendaccess=psort=date:D:L:d1start=10sa=N ) [R] = Array ( [0] = SimpleXMLElement Object ( [U] = http://benefits/ [UD] = http://benefits/ [UE] = http://benefits/ [T] = bBenefits/b [RK] = 10 [FS] = SimpleXMLElement Object ( ) [S] = Home, bBenefits/b Forms Jobs Training Locations, Who We Are E-Info Publications EVAbr Team Websites. b.../b 2006 bBenefits/b Vote. bBenefits/b Links. bBenefits/b Websites. b.../b [LANG] = en [HAS] = SimpleXMLElement Object ( [L] = SimpleXMLElement Object ( ) [C] = SimpleXMLElement Object ( ) ) ) [1] = SimpleXMLElement Object ( [U] = http://benefits/benefits_websites.html [UD] = http://benefits/benefits_websites.html [UE] = http://benefits/benefits_websites.html [T] = bBenefits/b [RK] = 9 [CRAWLDATE] = 17 May 2006 [FS] = SimpleXMLElement Object ( ) [S] = Home, bBenefits/b Forms Jobs Training Locations, Who We Are E-Info Publicationsbr EVA Team Websites. bBenefits/b Websites. b.../b [LANG] = en [HAS] = SimpleXMLElement Object ( [L] = SimpleXMLElement Object ( ) [C] = SimpleXMLElement Object ( ) ) [HN] = /benefits ) [2] = SimpleXMLElement Object ( [U] = http://www..com/jobs//benefits.html [UD] = http://www..com/jobs//benefits.html [UE] = http://www..com/jobs//benefits.html [T] = Whole Foods : Jobs : North Atlantic Region Career Opportunities [RK] = 10 [CRAWLDATE] = 15 May 2006 [FS] = SimpleXMLElement Object ( ) [S] = b.../b bBenefits/b Summary. b.../b The bBenefits/b of a Unique Culture. Atbr b.../b success. Medical Care bBenefits/b. Available after b.../b [LANG] =
Re: [PHP] Fast search
On Wed, 2006-05-17 at 16:38, Robin Vickery wrote:
On 17/05/06, René Fournier [EMAIL PROTECTED] wrote:
Looking for suggestions on the most compute-efficient way to search
variable-length strings (~200 characters) for the occurrence of one
of about 100 possible needles. In other words:
$needles = array ( 1 = Hello Jim , 2 = Yellow Banana , 3 =
Red Car, ... etc (100 elements)
$haystack = Once upon a time there was a programming language that
everyone loved. Its name was PHP, and the people that worked with it
also liked Yellow Bananas. One day...;
What version of php?
If you're using php5 then you could do:
?php
$count = 0;
str_replace($needles, '', $haystack, $count);
if ($count) { /* there was a match */ }
?
Surely you meant strpos( $haystack, $needle ) ???
Incidentally do you need to match on words beginnings or endings? For
instance should 'put' match all of the following:
I put the apple core in the compost.
Someone always puts the fire out.
The car sputtered and died.
Cheers,
Rob.
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[PHP] Getting rid of Web page has expired (POSTDATA error)
I am having an issue with certain pages preventing the user from going back to the previous page. The message given by Firefox is: The page you are trying to view contains PSTDATA that has expired from cache. This happens in the case of an HTML form using the POST method but also a query object in the URL. In this case: index.php?id=shopping_cart in my URL, along with a bunch of form data you carry from page to page in a shopping cart (quantities, what to remove, addresses, payment info, etc...) Is this due to the fact that I am mixing POST and query objects or is it something else? I already tried adding the following but it does not help: header(Cache-Control: no-store, no-cache, must-revalidate); header(Cache-Control: post-check=0, pre-check=0, false); header(Pragma: no-cache); Thanks for your help! -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Warning: chmod(): Operation not permitted ?
At 11:18 AM -0400 5/17/06, John Nichel wrote: tedd wrote: Hi (please insert your preference): This should be simple, but I'm having problems. I have a program that uploads an image file and then tries to set the permissions for the image (to be altered later). However, I get a Warning: chmod(): Operation not permitted error when trying to set the permission, what gives? If my program created the file, shouldn't it have permission to set the files permissions? What am I not understanding? Without seeing code, permissions of the directories, what sticky bits might or might not be set, etc., you could not be understanding many thingsor just onewho knows. I read all of your Google links, but no help. Just another example of how Google is not the answer. In any event, my code is pretty simple, just: chmod($url, 0755); //where $url is the file I want to change. The error I receive is noted above in the subject line. The permissions of the directories vary, but the folder that has the file I want to change permissions is currently set at 0777. In doing a lstat() of both the parent program that created the file and the child file shows that they both have the identical uid and gid (i.e., the same user and group id's). Now, everything I've read, says: chmod() changes the permission of the specified file with the following caveat. chmod() can only change the permissions of files that are owned by the user running the command. In most cases, this is the user that the web server runs on. That confuses me, because who's the user here? Is it just the system administrator or the application? And if it is just the system administrator, then can't the system admin change anything he/she wants anyway? What's the point of having uid and gid's if a program can't change the permissions of a sibling file? I have tons of references as to what php filesystem functions are available, but I need a good reference as to what permissions are and how they actually can be changed in php -- does anyone have one a good reference OR care to explain? As it is now, I know how ride the horse, but I can't get the gate open. Thanks. tedd -- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Warning: chmod(): Operation not permitted ?
chmod() can only change the permissions of files that are owned by the user running the command. In most cases, this is the user that the web server runs on. That confuses me, because who's the user here? Is it just the system administrator or the application? This is the user that Apache (or whatever webserver) is running as. If you're using Apache, look at your httpd.conf file to find out who that user is. If you're creating files successfully, you can just look at the owner of that file to find out who it is. Is safe_mode enabled? From the manual (http://us3.php.net/chmod): Note: When safe mode is enabled, PHP checks whether the files or directories you are about to operate on have the same UID (owner) as the script that is being executed. In addition, you cannot set the SUID, SGID and sticky bits. So, if you're running in safe mode, the php file, and the files that you need to modify have to be owned by the same user. Say you have process.php which is operating on the uploaded files, and it is owned by the jondoe user. The files that you wanted to chmod() would also have to be owned by jondoe, which is probably not the case. Apache is often run under the apache, www, or nobody user. HTH, Brady -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Converting characters
Jonas Rosling wrote: Hi, the PHP newbie is here again asking questions. Is there anyway in PHP to convert none international characters so the are displayed correct? In my case I have lots of data in the database with å,ä and ö. Thanks // Jonas Have you looked at the mbstring or iconv extensions? -- life is a game... so have fun. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Need help calling PHP page from another server.
I am using a chat program and trying to call the status page from another
server and the graphic that the page returns does not show up.
It works if you are calling from the webserver that the chat program is
working so i feel it is some type of config problem or security issue.
http://www.hidho.com/chattest.htm is the page that uses the code
a href=javascript:pophelp('
http://chat.siuprem.com/siupchat/client.php',500,500)img src=
http://chat.siuprem.com/siupchat/statusimage.php;/a and it works on
http://chat.siuprem.com/siupchat/chattest.htm which is the windows IIS
sesrver where PHP is running.
Any help would be great.
/Robert
[PHP] Add Multiple Items, Qty to Cart from html form
Hello,
I trying to add multiple items to a shopping cart with selectable quantity
and price form text field like..
apple : qty: [__] price: [__]
orange : qty: [__] price: [__]
Add Items to Cart
I could add multiple items with checkboxes but without selecting quantity
and price..
if (isset($_POST['itemschecked'])) {
foreach($_POST['itemschecked'] as $itemschecked = $checkeditems ){
AddItem($checkeditems, 1);
}
Any help is appreciated..
Thanks,
Andras
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Re: [PHP] 404 After Setting session.save_path to /tmp
Mark Sargent wrote: Chris wrote: Sounds like you're using the wrong script to restart apache. What command are you using? service httpd restart Rebooting will most likely pick up the /etc/init.d/apache or /etc/init.d/httpd script. Have this in /etc/rc.local on Fedora 5, startApache=/usr/local/apache2/bin/apachectl if [ -f $startApache ] ; then $startApache start fi and I see that I have left off start at the end of startApache. There's your problem. service httpd restart will most likely restart /usr/sbin/httpd. That's not the same as /usr/local/apache2 Remove the rpm to save confusion next time: rpm -e httpd then when you need to restart, always use the /usr/local/apache2/bin/apachectl file. -- Postgresql php tutorials http://www.designmagick.com/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] 404 After Setting session.save_path to /tmp
Chris wrote: There's your problem. service httpd restart will most likely restart /usr/sbin/httpd. That's not the same as /usr/local/apache2 Remove the rpm to save confusion next time: rpm -e httpd then when you need to restart, always use the /usr/local/apache2/bin/apachectl file. Hi All, weird, as I distinctly left out installing any type of servers when initially installing FC5. Cheers. Mark Sargent -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] 404 After Setting session.save_path to /tmp
Mark Sargent wrote: Chris wrote: There's your problem. service httpd restart will most likely restart /usr/sbin/httpd. That's not the same as /usr/local/apache2 Remove the rpm to save confusion next time: rpm -e httpd then when you need to restart, always use the /usr/local/apache2/bin/apachectl file. Hi All, weird, as I distinctly left out installing any type of servers when initially installing FC5. Cheers. In my experience redhat and fedora don't really listen to what you want properly. What the hell does pcmcia have to do with a server installation? You need to check it each time you install. -- Postgresql php tutorials http://www.designmagick.com/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Add Multiple Items, Qty to Cart from html form
Andras,
input type=hidden name=item[] value=applesApples input type=text
name=qty[] value=0 input type=text name=price[] value=0
Will get you where you need to go on the HTML side of things, then on
the back end you need to process each array. By setting a default value
of 0 for the qty, you force users to change the values, but you also
keep your arrays intact and easier (IMHO) to deal with.
Wolf
Andras Kende wrote:
Hello,
I trying to add multiple items to a shopping cart with selectable
quantity and price form text field like..
apple : qty: [__] price: [__]
orange : qty: [__] price: [__]
Add Items to Cart
I could add multiple items with checkboxes but without selecting
quantity and price..
if (isset($_POST['itemschecked'])) {
foreach($_POST['itemschecked'] as $itemschecked = $checkeditems ){
AddItem($checkeditems, 1);
}
Any help is appreciated..
Thanks,
Andras
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