magic_quotes_runtime
I've always seen "main()" used as below. You basically define all the functions required to execute your script, then throw all the other code in the Main function for when it executes. Keeps things nice and modular :D
<?php
// grab our necessary "header" files and settings
include '../includes/bootstrap.php';
// execute our script
Main();
// this is "where it all happens"
function Main()
{
$value = value_get();
value_output_to_buffer( $value );
return;
}
// we define all our functions and subroutines
// at the bottom of the document so we don't
// have to scroll all the way down just to figure
// out what our code does
function value_get()
{
return 'This is a value!';
}
function value_output_to_buffer( $value )
{
echo $value;
return;
}
?>
main
main — Dummy for main()
Description
There is no function named main() except in the PHP source. In PHP 4.3.0, a new type of error handling in the PHP source (php_error_docref) was introduced. One feature is to provide links to a manual page in PHP error messages when the PHP directives html_errors (on by default) and docref_root (on by default until PHP 4.3.2) are set.
Sometimes error messages refer to a manual page for the function main() which is why this page exists. If you discover such a reference, please » file a bug report, indicating the PHP function caused the error that linked to main() and it will be fixed and properly documented.
| Function name | No longer points here as of |
|---|---|
| include() | 5.1.0 |
| include_once() | 5.1.0 |
| require() | 5.1.0 |
| require_once() | 5.1.0 |
add a note
User Contributed Notesmain
logan at loganmcgrath dot com
14-Feb-2009 07:21
14-Feb-2009 07:21
yves dot vanhal at hogent dot be
28-Nov-2008 03:09
28-Nov-2008 03:09
In an effort to separate PHP code as much as possible from the HTML code I use the following self-enforced standard:
* all PHP functions are above the <!DOCTYPE> or <HTML>
* the last function in the list in the PHP block is a function called main()
* within the <BODY> element the first thing I do to initialize the page is to make a call to the main function
This results in code looking like this:
<?php
function xxx() { }
function yyy() { }
function main() {
xxx() // execute call to other function
}
?>
<HTML>
<BODY>
<?php main() ?>
</BODY>
</HTML>
This way I hope my code will be readable for newbies and advanced programmers.
penny at mjollnir dot org
04-Jul-2008 01:29
04-Jul-2008 01:29
if like me, you're working inside a framework where you can't require the file with the class definition before session_start is called, I found the following workaround:
$whatever = unserialize(serialize($_SESSION['whatevever']));
dirty hackish, but works.
Anonymous
26-Jun-2008 01:32
26-Jun-2008 01:32
In addition to Maurice's comments:
the "The script tried to execute a method or access a property of an incomplete object" message can appear also if you store your objects in session, and rename class during that session.
For example, you have class "class_name", and there is a class variable "$class_var = new class_name".
If you decide to rename your class, you would have "$class_var = new class_new_name".
This re-naming will result in abovementioned error message if you store $class_var in session.
Solution: clean-up session variable, then error disappears.
deryckchan [ATT] gmail D0T C0M
21-Feb-2008 04:10
21-Feb-2008 04:10
To put it simple: main() refers to anything running in the current PHP script file that isn't part of any function.
MagicalTux at kinoko dot fr
28-Nov-2007 07:31
28-Nov-2007 07:31
Additional note about what Maurice said: you can also use an __autoload function which will get called as the session/var is unserialized.
This will allow you to not preload all possible classes before loading a session, and let them be loaded dynamically. Check http://php.net/oop5.autoload for more details about this magic function.
Maurice
01-May-2006 08:12
01-May-2006 08:12
Notice: main() [function.main]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition "<classname>" of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide a __autoload() function to load the class definition in <filename> on line <line>
You get this error if you have and object in your $_SESSION array and you call session_start() before you have loaded your included classes.