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Which PHP version

I am making a news script and I was wondering if anyone knew of a program that will go through a php file and look at all the functions used and check what PHP version is necessary.

IE:

not_real.php contains:

PHP:

<?php
    getimagesize("http://made.up/file/img.jpg");
    array_rand($some_array, 2);
?>

getimagesize() would make the program set the required php version at 3, but array_rand() would change it to php version 4.

and just so you know i searched google and this forum but couldn't find anything to help me

Thanks in advance!!

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$V = preg_replace('/[a-zA-Z\.]/','',phpversion());

deal with $V how you want.

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if ( !function_exists ( 'array_rand' ) )
{
function array_rand ( )...

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Quote:

Originally posted by CDude
if ( !function_exists ( 'array_rand' ) )
{
function array_rand ( )...

That was just a random function i through in to expllain

i forgot to clarify something. I want this so i can tell anybody who downloads my system what the earliest version of php (where every function is in) they will need

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that's easy, pick the newest function you use and that will be the requirement.

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http://celerondude.com

Quote:

Originally posted by CDude
that's easy, pick the newest function you use and that will be the requirement.

The point of the program I am asking about is to do just that

I dont really feel like going through 40 files and make a list of every single function and then check php.net for each function

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ProBB - The Best Thing to Happen to BBs Since YaBB

You can already guess based on your experience with PHP. It's better to set a base version and work from there. Spend more time on the script and less time with useless problems.

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http://celerondude.com