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What's better at freeing memory with PHP: unset() or $var = null
... name says - unset a variable. It does not force immediate memory freeing. PHP's garbage collector will do it when it see fits - by intention as soon, as those CPU cycles aren't needed anyway, or as late as before the script would run out of memory, whatever occurs first.
If you are doing $whatever ...
Create subdomains on the fly with .htaccess (PHP)
...s is done in the ServerAlias DOCs
Then extract and verify the subdomain in PHP and display the appropriate data
The long version
1. Create a wildcard DNS entry
In your DNS settings you need to create a wildcard domain entry such as *.example.org. A wildcard entry looks like this:
*.example.org....
How to force file download with PHP
... to require a file to be downloaded upon the user visiting a web page with PHP. I think it has something to do with file_get_contents , but am not sure how to execute it.
...
php $_POST array empty upon form submission
I have a custom CMS i've built that works perfectly on my dev box (Ubuntu/PHP5+/MySQL5+).
27 Answers
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How can I parse a JSON file with PHP? [duplicate]
I tried to parse a JSON file using PHP. But I am stuck now.
16 Answers
16
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How do I get the current date and time in PHP?
Which PHP function can return the current date/time?
38 Answers
38
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How can I brew link a specific version?
...
If you have installed, for example, php 5.4 it could be switched in the following way to php 5.5:
$ php --version
PHP 5.4.32 (cli) (built: Aug 26 2014 15:14:01)
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2014 Zend Technologie...
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Performance of FOR vs FOREACH in PHP
...on't think it really matters...
As for the reference making a difference, PHP uses copy-on-write, so if you don't write to the array, there will be relatively little overhead while looping. However, if you start modifying the array within the array, that's where you'll start seeing differences bet...
How to repair a serialized string which has been corrupted by an incorrect byte count length?
...en ( $data2 )) ? strlen ( $data1 ) : strlen ( $data2 );
echo $data1 . PHP_EOL;
echo $data2 . PHP_EOL;
for($i = 0; $i < $max; $i ++) {
if (@$data1 {$i} !== @$data2 {$i}) {
echo "Diffrence ", @$data1 {$i}, " != ", @$data2 {$i}, PHP_EOL;
echo "\t-> ...