[PHP] newbie question about scope
I am an experienced web developer who is just getting into php. I have had a php project fall into my lap and wanted a little advice. Here is the scoop: A client moved their site from a server (unknown details) to a hosting facility (php 4.3.2). Now none of the scripts work. I have guessed that they are coming from an earlier version of apache/php. Anyway it appears that whoever created the site in the first place did not believe in scoping variables. Now any variable that is not properly scoped will not be read by the server. I know I can simply scope all of the variables, but I was hoping there may be an easier way. Also, how bad is the _REQUEST scope I read that it could not be trusted, however the previous developer created the app in such a way that several places a variable could be _GET or _POST. I apologize for the rambling and possible incoherency of this message, I am a bit tired. Matthew PS. How do you scope queries? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] newbie question about scope
news.comcast.giganews.com wrote: I am an experienced web developer who is just getting into php. I have had a php project fall into my lap and wanted a little advice. Here is the scoop: A client moved their site from a server (unknown details) to a hosting facility (php 4.3.2). Now none of the scripts work. I have guessed that they are coming from an earlier version of apache/php. Anyway it appears that whoever created the site in the first place did not believe in scoping variables. Now any variable that is not properly scoped will not be read by the server. I know I can simply scope all of the variables, but I was hoping there may be an easier way. Also, how bad is the _REQUEST scope I read that it could not be trusted, however the previous developer created the app in such a way that several places a variable could be _GET or _POST. I apologize for the rambling and possible incoherency of this message, I am a bit tired. Matthew PS. How do you scope queries? You're thinking about this in the wrong way, it seems. The server probably has register_globals Off, where previously he was programming with it being On. or vise-versa. They should be Off, and should be left off, but programming with them off needs some adjusting. Variables such as post and get data are now 'superglobals', and must use the appropriate arrays; $_GET[], and $_POST[]. There are things like extract(), but using them is not advised. as per your question about scope queries, be more concrete :) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] newbie question about scope
[snip] A client moved their site from a server (unknown details) to a hosting facility (php 4.3.2). Now none of the scripts work. I have guessed that they are coming from an earlier version of apache/php. [/snip] It is likely then that register_globals is set to OFF in the php.ini. In earlier versions this directive was set to ON. It was a security issue that was more about bad coding than a PHP vulnerability. If you passed a form field with the name of userName it could be accessed by PHP in the $userName variable, with RG off you would have to access it via $_GET['userName'] or $_POST['userName'] dependent upon the processing method of the form. [snip] Also, how bad is the _REQUEST scope I read that it could not be trusted [/snip] Again, bad coding would present a danger here. [snip] PS. How do you scope queries? [/snip] I am not sure what you are asking here. Do you mean making a query public or private? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] newbie question about scope
Derek Ford [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] news.comcast.giganews.com wrote: I am an experienced web developer who is just getting into php. I have had a php project fall into my lap and wanted a little advice. Here is the scoop: A client moved their site from a server (unknown details) to a hosting facility (php 4.3.2). Now none of the scripts work. I have guessed that they are coming from an earlier version of apache/php. Anyway it appears that whoever created the site in the first place did not believe in scoping variables. Now any variable that is not properly scoped will not be read by the server. I know I can simply scope all of the variables, but I was hoping there may be an easier way. Also, how bad is the _REQUEST scope I read that it could not be trusted, however the previous developer created the app in such a way that several places a variable could be _GET or _POST. I apologize for the rambling and possible incoherency of this message, I am a bit tired. Matthew PS. How do you scope queries? You're thinking about this in the wrong way, it seems. The server probably has register_globals Off, where previously he was programming with it being On. or vise-versa. They should be Off, and should be left off, but programming with them off needs some adjusting. Variables such as post and get data are now 'superglobals', and must use the appropriate arrays; $_GET[], and $_POST[]. There are things like extract(), but using them is not advised. as per your question about scope queries, be more concrete :) I agree that is the way it should be, but my client is looking for a quick fix, not a good one. In the end it is fortunate for my client that the quick fix is not a viable one. I agree that all variables should be scoped, it is the right way to do things. I think I have my query question figured out. Thanks -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] newbie question about scope
[snip] Unless I'm misunderstanding something, PHP does not implement scoping (at least in the sense that many other programming languages do) prior to PHP5. [/snip] Actually it does implement scoping, see http://us2.php.net/language.variables.scope -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
