[wp-hackers] readme.txt: "Requires PHP 5 tag"

[Shane A. Froebel]

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Just to make it clear (from
http://us2.php.net/manual/en/function.version-compare.php)

if (version_compare(PHP_VERSION, '5.0.0', '>')) {
    echo 'I am using PHP 5, my version: ' . PHP_VERSION . "\n";
}

if (version_compare(PHP_VERSION, '5.0.0', '<')) {
    echo 'I am using PHP 4, my version: ' . PHP_VERSION . "\n";
}

Jordi Canals wrote:
> 2009/7/25 Jason Webster <jason at intraffic.net>
> 
>> On 20/07/2009 6:20 AM, Otto wrote:
>>
>>  That will run fine. PHP only will throw an error if it actually makes
>>> it to the code. Code is interpreted at the time of execution, not at
>>> the time of inclusion. You can include a file with complete gibberish
>>> inside a function, but until you try to use that function, it won't
>>> stop the program.
>>>
>>> -Otto
>>>
>> That is SO not true.
>>
>> test.php:
>> <?php
>>
>> function complete_gibberish() {
>>    this is complete gibberish
>>    full of all sorts of syntax errors
>> }
>>
>>
>> echo 'hi';
>>
>>
>> $: php test.php
>>> PHP Parse error:  syntax error, unexpected T_STRING in
>> /home/jason/test.php on line 4
>>
>>
>>From PHP-4, the file is parsed when loaded, so syntax in all file is checked
> as soon as the file has been included. It does not mind if the code is
> executed or not, Steps are like that: 1) File is loaded, 2) File is parsed
> and compiled and 3) The code is executed.
> 
> So, the best way is to have a small file to check for the version prior to
> including any version specific version code, you can do with a file like
> that:
> 
> <?php
> if ( version_compare(PHP_VERSION, '5.0.0', '<') {
>    die ( "PHP 5 is required to run this script");
> } else {
>    include 'filename.php';
> }
> ?>
> 
> Regards,
> ---
> 
> Jordi Canals
> http://alkivia.org
> _______________________________________________
> wp-hackers mailing list
> wp-hackers at lists.automattic.com
> http://lists.automattic.com/mailman/listinfo/wp-hackers
> 


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