[perleo]

I have watched this forum for a good while and I decided to make this post, hopefully it will go sticky and be a reference for people who ask the common questions. So here are some questions commonly asked

1) Warning: session_start(): Cannot send session cache limiter

This is usually casued when the session_start() function is NOT called at the top of the
PHP script. This function must be the first line of code in a script. EG

PHP Code:

  <?php

   /* You can put comments here as the PHP parser ignores any comments */

  session_start();



  //continue on with your code.....

  ?>

Ref: http://ie2.php.net/manual/en/function.session-start.php

2)How do I do index.php?foo=bar
This is repeated several times on the forum. To pass values through the URL you can use the HTTP GET feature or $_GET in PHP. In this URL , index.php?foo=bar , the foo is the variable and bar is the value, so to get it in PHP do the following

PHP Code:

  $foo = $_GET['foo'];

  //print foo

  echo $foo;  //this will printout bar 

Several variables can be passed over the url , after the first one, the & separates the variables like so: index.php?foo=bar&car=wheels

Ref:


Iam sure there is alot more, so hopefully we can add to this post...http://ie2.php.net/manual/en/reserve....variables.get

[FiRe]

I made a similar post a few pages back...

[perleo]

well have to bump this up, or get the admin to make it sticky...

[dennispopel]

Hello,

Just to clear thing up: sometimes PHP gurus giving wrong answers to common problems or just do not explain everything. Problems with session_start() do not arise form not being called at the top of the page (like perleo says). It must be called before the first output to the client. The most common problem for this is not the fact that it is not called at the top of the page, but whitespace before the opening <? of whitespace after the closing ?> in included files.

In general this is not true that session_start() must be the first statement. It must occur before anything gets sent to browser, including whitespace outside the php blocks. Moreover, preceding session_start() can be any number of statements that do not output anyhting.