php-general Digest 1 Jan 2011 00:09:58 -0000 Issue 7110
php-general Digest 1 Jan 2011 00:09:58 - Issue 7110 Topics (messages 310418 through 310438): Re: Do you trim() usernames and passwords? 310418 by: Nathan Rixham Re: Regex for telephone numbers 310419 by: Nathan Rixham 310420 by: Ethan Rosenberg 310422 by: a...@ashleysheridan.co.uk 310423 by: Ethan Rosenberg 310426 by: Nathan Rixham 310427 by: Al 310428 by: a...@ashleysheridan.co.uk 310429 by: Al 310430 by: Per Jessen 310431 by: Per Jessen 310432 by: Daniel P. Brown 310434 by: Dmitriy Ugnichenko 310435 by: Daniel Brown 310436 by: Steve Staples 310438 by: Jim Lucas Job Search 310421 by: Ethan Rosenberg 310424 by: Daniel Brown 310425 by: Greg Bair Re: goto - My comments 310433 by: Govinda Re: memory usage/release GC 310437 by: Tommy Pham Administrivia: To subscribe to the digest, e-mail: php-general-digest-subscr...@lists.php.net To unsubscribe from the digest, e-mail: php-general-digest-unsubscr...@lists.php.net To post to the list, e-mail: php-gene...@lists.php.net -- ---BeginMessage--- Tamara Temple wrote: Sorry, I was mislead by your use of the phrase Users should not be copy-pasting passwords or usernames above. I'd love to hear what you think is an alternative to identifying with web app that keeps track of information about someone that is more secure. client side ssl certificates, they force http+tls (thus encryption over the wire and no chance of middleman attacks) and no usernames or passwords need to be passed, as you identify people by the public key held in their certificate, the TLS process ensures they have the private key. ---End Message--- ---BeginMessage--- Ethan Rosenberg wrote: FYI [to all the list] -- I thank all for their input. I only needed US phones, and I am forcing the user of the form to conform to xxx-xxx- as the input format. out of interest, why are you forcing you're users to conform to that input format? you could simply strip all non-numeric chars then format how you like to save, thus giving users a looser, more friendly, experience. ---End Message--- ---BeginMessage--- At 07:11 AM 12/31/2010, Nathan Rixham wrote: Ethan Rosenberg wrote: FYI [to all the list] -- I thank all for their input. I only needed US phones, and I am forcing the user of the form to conform to xxx-xxx- as the input format. out of interest, why are you forcing you're users to conform to that input format? you could simply strip all non-numeric chars then format how you like to save, thus giving users a looser, more friendly, experience. + Nathan - This expression will be used to search a database which will contain patient data resulting from medical research. At the initial visit a medical record number will be assigned to the patient. Other information will be collected at that point; eg, the telephone number. At subsequent visits, the patient will be referenced by his/hers medical record number. If the patient either forgot their clinic card, or cannot remember their medical record number, a search will be performed. One of the many parameters that can be used in the search is the phone number. It is easier if all the data has a fixed format. The form for the initial visit will use a regex that will validate the phone number. As the research will be performed in the US, only US numbers have to be validated. Hope this helps. Ethan ---End Message--- ---BeginMessage--- Sorry for top-post, on phone. What about mobile phone numbers (cell phones you call them in the US) do they conform to the same format? I know there have been times myself when I've been without a landline number leaving me with only my mobile as a means of contact. Thanks, Ash http://www.ashleysheridan.co.uk - Reply message - From: Ethan Rosenberg eth...@earthlink.net Date: Fri, Dec 31, 2010 14:03 Subject: [PHP] Regex for telephone numbers To: Nathan Rixham nrix...@gmail.com Cc: php-gene...@lists.php.net php-gene...@lists.php.net At 07:11 AM 12/31/2010, Nathan Rixham wrote: Ethan Rosenberg wrote: FYI [to all the list] -- I thank all for their input. I only needed US phones, and I am forcing the user of the form to conform to xxx-xxx- as the input format. out of interest, why are you forcing you're users to conform to that input format? you could simply strip all non-numeric chars then format how you like to save, thus giving users a looser, more friendly, experience. + Nathan - This expression will be used to search a database which will contain patient data resulting from medical research. At the initial visit a medical record number will be assigned to the patient. Other information will be collected at that point; eg, the telephone number. At
Re: [PHP] memory usage/release GC
On Dec 31, 2010 6:20 AM, Tommy Pham tommy...@gmail.com wrote:
Hi folks,
With the recent thread about password security, I wrote a small quick
script to generate a random or all possible passwords based on certain
parameters for a brute force use. On a very long running execution for a
complex password in length with full use of the keys (94 characters),
including upper case, the script seems to consumes more memory (shown in
Windows task manager) as time progress. Below are snippets from the
script
file that does the workload:
while (!$this-isMax())
{
for ($b = 0; $b = $this-pwdLength; $b++)
{
if ($this-counter[$b] $this-max)
{
$this-pwd[$b] =
$this-charList[$this-counter[$b]];
$this-counter[$b]++;
break;
}
else
{
$this-counter[$b] = 1;
$this-pwd[$b] = $this-charList[0];
}
}
}
private function isMax()
{
for ($a = $this-pwdLength-1; $a=0; $a--)
{
if ($this-counter[$a] $this-max) return false;
}
return true;
}
Could someone please tell me why the above code consumes additional memory
as time progress for the execution of the while loop? Researching PHP GC
on
google didn't shed light on problem. Generating all possible combinations
for 20 length with 94 possibilities each, the script easily consumes more
than 1GB RAM in few minutes. BTW, gc_enabled() reports on.
Thanks,
Tommy
Are you storing or throwing away the passwords? Also, lots of code is
missing from that post, no idea if you've got a memory leak in the rest of
the code
Regards
Peter
Re: [PHP] Re: Do you trim() usernames and passwords?
Tamara Temple wrote: On Dec 28, 2010, at 2:11 PM, Joshua Kehn wrote: Specifically: Dotan Cohen wrote: I seem to have an issue with users who copy-paste their usernames and passwords coping and pasting leading and trailing space characters. Users should not be copy-pasting passwords or usernames. Do not compromise a system to cater to bad [stupid, ignorant, you pick] users. If this is an issue then educate the users. I'm sorry, but this is just bloody stupid. I keep my usernames and randomly generated, very long passwords in a password keeper. If you're not going to let me copy paste them into a web page, i'm just not going to ever use your application. Copy/pasting is something that happens on the *local* machine -- it never goes out to the net. By forcing people to type in their user names and passwords you are going to cause them to enter easily-remembered, and typically easily-crackable combinations. What is the possible logic for disallowing someone to paste in their usernames/passwords??? Tamara, you're missing half the context, the whole point was don't send username and password combo's in plaintext via email to users (thus forcing them to copy and paste from email) - this point was made but then that context has been stripped from the above email, obviously copy+pasting from a password keeper and such like is totally fine.. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: Do you trim() usernames and passwords?
Tamara Temple wrote: Sorry, I was mislead by your use of the phrase Users should not be copy-pasting passwords or usernames above. I'd love to hear what you think is an alternative to identifying with web app that keeps track of information about someone that is more secure. client side ssl certificates, they force http+tls (thus encryption over the wire and no chance of middleman attacks) and no usernames or passwords need to be passed, as you identify people by the public key held in their certificate, the TLS process ensures they have the private key. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Regex for telephone numbers
Ethan Rosenberg wrote: FYI [to all the list] -- I thank all for their input. I only needed US phones, and I am forcing the user of the form to conform to xxx-xxx- as the input format. out of interest, why are you forcing you're users to conform to that input format? you could simply strip all non-numeric chars then format how you like to save, thus giving users a looser, more friendly, experience. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Regex for telephone numbers
At 07:11 AM 12/31/2010, Nathan Rixham wrote: Ethan Rosenberg wrote: FYI [to all the list] -- I thank all for their input. I only needed US phones, and I am forcing the user of the form to conform to xxx-xxx- as the input format. out of interest, why are you forcing you're users to conform to that input format? you could simply strip all non-numeric chars then format how you like to save, thus giving users a looser, more friendly, experience. + Nathan - This expression will be used to search a database which will contain patient data resulting from medical research. At the initial visit a medical record number will be assigned to the patient. Other information will be collected at that point; eg, the telephone number. At subsequent visits, the patient will be referenced by his/hers medical record number. If the patient either forgot their clinic card, or cannot remember their medical record number, a search will be performed. One of the many parameters that can be used in the search is the phone number. It is easier if all the data has a fixed format. The form for the initial visit will use a regex that will validate the phone number. As the research will be performed in the US, only US numbers have to be validated. Hope this helps. Ethan -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Job Search
Dear list - I am an entry level data base programmer [PHP/MySQL HTTP/CSS] looking for work in the NY metropolitan area. Any ideas? Should we have a job search board? Ethan -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Regex for telephone numbers
Sorry for top-post, on phone. What about mobile phone numbers (cell phones you call them in the US) do they conform to the same format? I know there have been times myself when I've been without a landline number leaving me with only my mobile as a means of contact. Thanks, Ash http://www.ashleysheridan.co.uk - Reply message - From: Ethan Rosenberg eth...@earthlink.net Date: Fri, Dec 31, 2010 14:03 Subject: [PHP] Regex for telephone numbers To: Nathan Rixham nrix...@gmail.com Cc: php-general@lists.php.net php-general@lists.php.net At 07:11 AM 12/31/2010, Nathan Rixham wrote: Ethan Rosenberg wrote: FYI [to all the list] -- I thank all for their input. I only needed US phones, and I am forcing the user of the form to conform to xxx-xxx- as the input format. out of interest, why are you forcing you're users to conform to that input format? you could simply strip all non-numeric chars then format how you like to save, thus giving users a looser, more friendly, experience. + Nathan - This expression will be used to search a database which will contain patient data resulting from medical research. At the initial visit a medical record number will be assigned to the patient. Other information will be collected at that point; eg, the telephone number. At subsequent visits, the patient will be referenced by his/hers medical record number. If the patient either forgot their clinic card, or cannot remember their medical record number, a search will be performed. One of the many parameters that can be used in the search is the phone number. It is easier if all the data has a fixed format. The form for the initial visit will use a regex that will validate the phone number. As the research will be performed in the US, only US numbers have to be validated. Hope this helps. Ethan -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Regex for telephone numbers
At 09:27 AM 12/31/2010, a...@ashleysheridan.co.uk wrote: Sorry for top-post, on phone. What about mobile phone numbers (cell phones you call them in the US) do they conform to the same format? I know there have been times myself when I've been without a landline number leaving me with only my mobile as a means of contact. Thanks, Ash http://www.ashleysheridan.co.ukhttp://www.ashleysheridan.co.uk - Reply message - From: Ethan Rosenberg eth...@earthlink.net Date: Fri, Dec 31, 2010 14:03 Subject: [PHP] Regex for telephone numbers To: Nathan Rixham nrix...@gmail.com Cc: php-general@lists.php.net php-general@lists.php.net At 07:11 AM 12/31/2010, Nathan Rixham wrote: Ethan Rosenberg wrote: FYI [to all the list] -- I thank all for their input. I only needed US phones, and I am forcing the user of the form to conform to xxx-xxx- as the input format. out of interest, why are you forcing you're users to conform to that input format? you could simply strip all non-numeric chars then format how you like to save, thus giving users a looser, more friendly, experience. + Nathan - This expression will be used to search a database which will contain patient data resulting from medical research. At the initial visit a medical record number will be assigned to the patient. Other information will be collected at that point; eg, the telephone number. At subsequent visits, the patient will be referenced by his/hers medical record number. If the patient either forgot their clinic card, or cannot remember their medical record number, a search will be performed. One of the many parameters that can be used in the search is the phone number. It is easier if all the data has a fixed format. The form for the initial visit will use a regex that will validate the phone number. As the research will be performed in the US, only US numbers have to be validated. Hope this helps. Ethan -- PHP General Mailing List (http://www.php.net/)http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.phphttp://www.php.net/unsub.php Ash - In contrast to some non-US phone numbers, all the numbers here [cell and landline] have the same format. Ethan -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Job Search
On Fri, Dec 31, 2010 at 09:11, Ethan Rosenberg eth...@earthlink.net wrote: Dear list - I am an entry level data base programmer [PHP/MySQL HTTP/CSS] looking for work in the NY metropolitan area. Any ideas? Search Google, but trust me, you're going to need more experience than entry-level to pick up a job around here, unless you're working remotely, and for relatively-minimal wage for the industry. I'm out in Scranton, and even here, when companies hire for someone with skills in those areas, they want a minimum of 2-4 years. Should we have a job search board? No. Not only would that be reinventing the wheel, but if we did it, it would be square. Many others can do it much better than we would have any interest in doing. That said, I'd highly recommend checking your local CraigsList, in the Gigs section, for computer and web jobs. Sometimes they have some quick one-off ones that can not only help you build experience, but also start building your roster of contacts. -- /Daniel P. Brown Network Infrastructure Manager Documentation, Webmaster Teams http://www.php.net/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Job Search
On Fri, 31 Dec 2010 09:11:31 -0500 Ethan Rosenberg eth...@earthlink.net wrote: Dear list - I am an entry level data base programmer [PHP/MySQL HTTP/CSS] looking for work in the NY metropolitan area. Any ideas? Should we have a job search board? Ethan phpdeveloper.org has a nice job board at http://jobs.phpdeveloper.org/. -- Greg Bair PHP Developer -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Regex for telephone numbers
Ethan Rosenberg wrote: At 07:11 AM 12/31/2010, Nathan Rixham wrote: Ethan Rosenberg wrote: FYI [to all the list] -- I thank all for their input. I only needed US phones, and I am forcing the user of the form to conform to xxx-xxx- as the input format. out of interest, why are you forcing you're users to conform to that input format? you could simply strip all non-numeric chars then format how you like to save, thus giving users a looser, more friendly, experience. + Nathan - This expression will be used to search a database which will contain patient data resulting from medical research. At the initial visit a medical record number will be assigned to the patient. Other information will be collected at that point; eg, the telephone number. At subsequent visits, the patient will be referenced by his/hers medical record number. If the patient either forgot their clinic card, or cannot remember their medical record number, a search will be performed. One of the many parameters that can be used in the search is the phone number. It is easier if all the data has a fixed format. The form for the initial visit will use a regex that will validate the phone number. As the research will be performed in the US, only US numbers have to be validated. Ethan, I think you misunderstand, I'm saying that regardless of which format you use within the system, users could enter phone numbers as 1231231234 123 123 1234 123-123 1234 or any variant they like, that's completely orthogonal to how you validate and save the data, in all of those cases all you need to do string non-numeric chars to validate, you may also find your indexes work that bit quicker storing numbers rather than specially (and needlessly) formatted string. Likewise on the way back out, when presenting the numbers to users, all you need to do is string format them. Follow? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: Regex for telephone numbers
On 12/29/2010 7:12 PM, Ethan Rosenberg wrote:
Dear List -
Thank you for all your help in the past.
Here is another one
I would like to have a regex which would validate that a telephone number is
in the format xxx-xxx-.
Thanks.
Ethan
MySQL 5.1 PHP 5 Linux [Debian (sid)]
Regex is over-kill.
$phoneNum = preg_replace(%\D%, '', $phoneNum);//Remove everything except
digits
$phoneNum = ltrim($phoneNum,'1');//Remove leading 1s
if(strlen($phoneValue) != 10)
{
throw new Exception(Phone number must be 10 digits, without leading a 1. Check
your entry carefull);
}
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Re: [PHP] Re: Regex for telephone numbers
Erm, you say regex is overkill, then use one in your example!
Thanks,
Ash
http://www.ashleysheridan.co.uk
- Reply message -
From: Al n...@ridersite.org
Date: Fri, Dec 31, 2010 15:53
Subject: [PHP] Re: Regex for telephone numbers
To: php...@lists.php.net, php-general@lists.php.net
On 12/29/2010 7:12 PM, Ethan Rosenberg wrote:
Dear List -
Thank you for all your help in the past.
Here is another one
I would like to have a regex which would validate that a telephone number is
in the format xxx-xxx-.
Thanks.
Ethan
MySQL 5.1 PHP 5 Linux [Debian (sid)]
Regex is over-kill.
$phoneNum = preg_replace(%\D%, '', $phoneNum);//Remove everything except
digits
$phoneNum = ltrim($phoneNum,'1');//Remove leading 1s
if(strlen($phoneValue) != 10)
{
throw new Exception(Phone number must be 10 digits, without leading a 1. Check
your entry carefull);
}
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Re: [PHP] Re: Regex for telephone numbers
On 12/31/2010 11:10 AM, a...@ashleysheridan.co.uk wrote:
Erm, you say regex is overkill, then use one in your example!
Thanks,
Ash
http://www.ashleysheridan.co.uk
- Reply message -
From: Aln...@ridersite.org
Date: Fri, Dec 31, 2010 15:53
Subject: [PHP] Re: Regex for telephone numbers
To:php...@lists.php.net,php-general@lists.php.net
On 12/29/2010 7:12 PM, Ethan Rosenberg wrote:
Dear List -
Thank you for all your help in the past.
Here is another one
I would like to have a regex which would validate that a telephone number is
in the format xxx-xxx-.
Thanks.
Ethan
MySQL 5.1 PHP 5 Linux [Debian (sid)]
Regex is over-kill.
$phoneNum = preg_replace(%\D%, '', $phoneNum);//Remove everything except
digits
$phoneNum = ltrim($phoneNum,'1');//Remove leading 1s
if(strlen($phoneValue) != 10)
{
throw new Exception(Phone number must be 10 digits, without leading a 1. Check
your entry carefull);
}
Save and use the resultant $phoneNum; It is all that needs to be saved and used.
Dashes, spaces and () are superfluous. Only the 10 digits are required for his
application.
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Re: [PHP] Regex for telephone numbers
a...@ashleysheridan.co.uk wrote: Sorry for top-post, on phone. What about mobile phone numbers (cell phones you call them in the US) do they conform to the same format? AFAIK, they too vary from country to country. Swiss mobile numbers are 07[6789] NNN, the latter usually written as NNN NN NN, but also often in a way that will help remembering the number. Danish mobile#s are the same as land line numbers, no area code, just . -- Per Jessen, Zürich (2.8°C) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: Regex for telephone numbers
Al wrote:
On 12/29/2010 7:12 PM, Ethan Rosenberg wrote:
Dear List -
Thank you for all your help in the past.
Here is another one
I would like to have a regex which would validate that a telephone
number is in the format xxx-xxx-.
Thanks.
Ethan
MySQL 5.1 PHP 5 Linux [Debian (sid)]
Regex is over-kill.
You've just used one any way:
$phoneNum = preg_replace(%\D%, '', $phoneNum);//Remove everything except
digits
$phoneNum = ltrim($phoneNum,'1');//Remove leading 1s
if(strlen($phoneValue) != 10)
{
throw new Exception(Phone number must be 10 digits, without leading a
1. Check your entry carefull);
}
One regex and two function calls when one regex would have sufficed?
--
Per Jessen, Zürich (2.6°C)
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Re: [PHP] Regex for telephone numbers
On Fri, Dec 31, 2010 at 11:04, Per Jessen p...@computer.org wrote: AFAIK, they too vary from country to country. Swiss mobile numbers are 07[6789] NNN, the latter usually written as NNN NN NN, but also often in a way that will help remembering the number. Danish mobile#s are the same as land line numbers, no area code, just . In the US and Canada, though, there's [as of yet] no difference between landline, mobile, VOIP, fax, toll-free, premium (900), et cetera. Again, that's why I wrote out the example the way I did, which conforms to NANP (NPA/NXX) standards. It's the only suggestion so far that will work completely (which sounds cocky, but screw it, it's the last Friday of the year ;-P). -- /Daniel P. Brown Dedicated Servers, Cloud and Cloud Hybrid Solutions, VPS, Hosting (866-) 725-4321 http://www.parasane.net/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] goto - My comments
Would you please look at the code you wrote again. I must have botched it, because both the age and kitten form still are on the same page. The age page should appear, the data should be accepted and then the kitten page should appear. Ethan Hi Ethan, I don't mean to get in between you and Jim (or anyone else here). You want your page to just work.. and Jim offered you a working solution.. nice! But my suggestion is to drop that task for a day.. *totally start over* .. SUPER simple.. See if you can make a *tiny* form appear on a page and then when submitted show the next form.. etc.. just as you need the flow to go. Learn the concepts and logic structures involved to make that happen. If you focus on just this one thing then you will get it without too much more trouble.. and then you will OWN it and be able to apply it to your real production task. If you get stuck while writing your SIMPLE strung-together test forms, then ask about where you are stuck; what is it exactly that you do not understand. Just saying, effectively, It does not work shows you are over your head and need to back up and break down the problem into smaller parts. Don't worry, the smaller parts will prove to be easy, once actually seen for what they are! My PHP familiarity is not even 20% of what Jim and others here have, but I can and certainly will help you reach working code, so I guarantee you'll have help, if you start from the beginning. I'll be here all day today, and back on monday... to answer your posts. Govinda -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Regex for telephone numbers
I guess, this will work fine
ereg('[0-9]{3}-[0-9]{3}-[0-9]{4}', $phone_number);
On Thu, Dec 30, 2010 at 2:12 AM, Ethan Rosenberg eth...@earthlink.netwrote:
Dear List -
Thank you for all your help in the past.
Here is another one
I would like to have a regex which would validate that a telephone number
is in the format xxx-xxx-.
Thanks.
Ethan
MySQL 5.1 PHP 5 Linux [Debian (sid)]
--
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--
with best regards,
Dmitriy.
Re: [PHP] Regex for telephone numbers
On Fri, Dec 31, 2010 at 12:05, Dmitriy Ugnichenko
mitya.ugniche...@gmail.com wrote:
I guess, this will work fine
ereg('[0-9]{3}-[0-9]{3}-[0-9]{4}', $phone_number);
Not quite. Plus, all ereg* functions have been deprecated for
some time now.
--
/Daniel P. Brown
Network Infrastructure Manager
Documentation, Webmaster Teams
http://www.php.net/
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Re: [PHP] Regex for telephone numbers
On Wed, 2010-12-29 at 19:35 -0500, Daniel P. Brown wrote:
On Wed, Dec 29, 2010 at 19:12, Ethan Rosenberg eth...@earthlink.net wrote:
Dear List -
Thank you for all your help in the past.
Here is another one
I would like to have a regex which would validate that a telephone number
is in the format xxx-xxx-.
Congrats. People in Hell would like ice water. Now we all know
that everyone wants something. ;-P
Really, this isn't a PHP question, but rather one of regular
expressions. That said, something like this (untested) should work:
?php
$numbers = array(
'123-456-7890',
'2-654-06547',
'sf34-asdf-',
'abc-def-ghij',
'555_555_',
'000-000-',
'8007396325',
'241-555-2091',
'800-555-0129',
'900-976-739',
'5352-342=452',
'200-200-2000',
);
foreach ($numbers as $n) {
echo $n.(validate_phone($n) ? ' is ' : ' is not ').'a valid
US/Canadian telephone number.'.PHP_EOL;
}
function validate_phone($number) {
if
(preg_match('/^[2-9]{1,}[0-9]{2,}\-[2-9]{1,}[0-9]{2,}\-[0-9]{4,}$/',trim($number)))
{
return true;
}
return false;
}
?
THIS
is the regex you want to use... it is the most complete one that has
been posted here, and it works.
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Re: [PHP] memory usage/release GC
On Fri, Dec 31, 2010 at 2:02 AM, Peter Lind peter.e.l...@gmail.com wrote:
On Dec 31, 2010 6:20 AM, Tommy Pham tommy...@gmail.com wrote:
Hi folks,
With the recent thread about password security, I wrote a small quick
script to generate a random or all possible passwords based on certain
parameters for a brute force use. On a very long running execution for a
complex password in length with full use of the keys (94 characters),
including upper case, the script seems to consumes more memory (shown in
Windows task manager) as time progress. Below are snippets from the
script
file that does the workload:
while (!$this-isMax())
{
for ($b = 0; $b = $this-pwdLength; $b++)
{
if ($this-counter[$b] $this-max)
{
$this-pwd[$b] =
$this-charList[$this-counter[$b]];
$this-counter[$b]++;
break;
}
else
{
$this-counter[$b] = 1;
$this-pwd[$b] = $this-charList[0];
}
}
}
private function isMax()
{
for ($a = $this-pwdLength-1; $a=0; $a--)
{
if ($this-counter[$a] $this-max) return false;
}
return true;
}
Could someone please tell me why the above code consumes additional memory
as time progress for the execution of the while loop? Researching PHP GC
on
google didn't shed light on problem. Generating all possible combinations
for 20 length with 94 possibilities each, the script easily consumes more
than 1GB RAM in few minutes. BTW, gc_enabled() reports on.
Thanks,
Tommy
Are you storing or throwing away the passwords? Also, lots of code is
missing from that post, no idea if you've got a memory leak in the rest of
the code
Regards
Peter
Hi Peter,
Thanks for the reply. After I sent the e-mail last night, I did a
little debugging. As it turns out, xdebug was the culprit. I gotta
remember to disable xdebug while coding... Anyway, here's the full
code. Anyone is welcome to use it.
$timeStart = microtime(true);
//set_time_limit(0);
ini_set('max_execution_time', 0);
ini_set('memory_limit', -1);
class PwdGen
{
const ALPHA_LOWER = 'abcdefghijklmnopqrstuvwxyz';
const ALPHA_UPPER = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
const NUMERIC = '0123456789';
const SPECIALS = '!...@#$%^*()`~-_=+[]\{}|;:\',./?';
private $chars;
private $charList;
private $max;
private $pwdLength;
private $pwdList; // array
private $pwd;
private $counter; // array
private $insertDb = false;
public function __construct($pwdLength = 8, $useUpper = true,
$useNumeric = true, $useSpecials = true, $insertDb = true, $specials =
'')
{
$this-insertDb = $insertDb;
$this-pwdLength = intval($pwdLength);
$this-chars = self::ALPHA_LOWER;
if ($useUpper) $this-chars .= self::ALPHA_UPPER;
if ($useNumeric) $this-chars .= self::NUMERIC;
if ($useSpecials) $this-chars .= empty($specials) ?
self::SPECIALS
: $specials;
}
private function init()
{
$this-charList = str_split($this-chars, 1);
$this-max = sizeof($this-charList);
$this-pwd = str_split(str_repeat($this-charList[0],
$this-pwdLength), 1);
$this-pwdList = array(); // array
$this-counter = array();
for ($a = 0; $a $this-pwdLength; $a++)
$this-counter[$a] = 1;
$this-counter[$this-pwdLength-1] = 0;
}
public function setPasswordLength($pwdLength)
{
$this-pwdLength = intval($pwdLength);
}
public function setUseChars($useUpper = true, $useNumeric = true,
$useSpecials = true, $specials = '')
{
$this-chars = self::ALPHA_LOWER;
if ($useUpper) $this-chars .= self::ALPHA_UPPER;
if ($useNumeric) $this-chars .= self::NUMERIC;
if ($useSpecials) $this-chars .= empty($specials) ?
self::SPECIALS
: $specials;
}
public function getRandom()
{
$this-init();
for ($a = 0; $a $this-pwdLength; $a++)
$this-pwd[$a] = $this-charList[rand(0, $this-max -
1)];
$pwd = implode('', $this-pwd);
$output = $this-max.': '.$this-chars.' ('.pow($this-max,
$this-pwdLength).') '.PHP_EOL.$pwd.PHP_EOL;
return $output;
}
public function getAll($continue = true)
{
$this-init();
$sql = 'INSERT INTO `password`(`guid`, `length`, `password`,
`counter`, `date_added`) VALUES (BinUUID(), '.$this-pwdLength.', ?,
?, now())';
$pwd = '';
$counter = '';
Re: [PHP] Regex for telephone numbers
On 12/29/2010 4:35 PM, Daniel P. Brown wrote:
On Wed, Dec 29, 2010 at 19:12, Ethan Rosenberg eth...@earthlink.net wrote:
Dear List -
Thank you for all your help in the past.
Here is another one
I would like to have a regex which would validate that a telephone number
is in the format xxx-xxx-.
Congrats. People in Hell would like ice water. Now we all know
that everyone wants something. ;-P
Really, this isn't a PHP question, but rather one of regular
expressions. That said, something like this (untested) should work:
?php
$numbers = array(
'123-456-7890',
'2-654-06547',
'sf34-asdf-',
'abc-def-ghij',
'555_555_',
'000-000-',
'8007396325',
'241-555-2091',
'800-555-0129',
'900-976-739',
'5352-342=452',
'200-200-2000',
);
foreach ($numbers as $n) {
echo $n.(validate_phone($n) ? ' is ' : ' is not ').'a valid
US/Canadian telephone number.'.PHP_EOL;
}
function validate_phone($number) {
if
(preg_match('/^[2-9]{1,}[0-9]{2,}\-[2-9]{1,}[0-9]{2,}\-[0-9]{4,}$/',trim($number)))
{
return true;
}
return false;
}
?
Actually...
Specified here [1] it says that the {1,} is the same as '+'. I think you should
drop the comma. If you don't this would be valid 844-2345-123456
^[2-9]{1,}[0-9]{2,}\-[2-9]{1,}[0-9]{2,}\-[0-9]{4,}$
should be
^[2-9]{1}[0-9]{2}\-[2-9]{1}[0-9]{2}\-[0-9]{4}$
1 http://us.php.net/manual/en/regexp.reference.repetition.php
Jim Lucas
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Re: [PHP] Regex for telephone numbers
On Fri, Dec 31, 2010 at 19:09, Jim Lucas li...@cmsws.com wrote:
Actually...
Specified here [1] it says that the {1,} is the same as '+'. I think you
should
drop the comma. If you don't this would be valid 844-2345-123456
^[2-9]{1,}[0-9]{2,}\-[2-9]{1,}[0-9]{2,}\-[0-9]{4,}$
should be
^[2-9]{1}[0-9]{2}\-[2-9]{1}[0-9]{2}\-[0-9]{4}$
Bah, you're absolutely correct. Force of habit with the commas.
I didn't even notice the sample test cases I put into that test array
didn't check for more than the number of digits per field, either.
Good catch, Jim, and Happy New Year.
--
/Daniel P. Brown
Dedicated Servers, Cloud and Cloud Hybrid Solutions, VPS, Hosting
(866-) 725-4321
http://www.parasane.net/
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