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Check if $_POST exists

...sts and if it does, print it inside another string, if not, don't print at all. 14 Answers ...
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Getting the first character of a string with $str[0]

...am just not sure whether this is 'good practice', as that notation is generally used with arrays. This feature doesn't seem to be very well documented so I'm turning to you guys to tell me if it's all right – in all respects – to use this notation? ...
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Receive JSON POST with PHP

...ontents('php://input'), true); This will save you the hassle of changing all $_POST to something else and allow you to still make normal post requests if you wish to take this line out. share | im...
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Simplest two-way encryption using PHP

What is the simplest way of doing two way encryption in common PHP installs? 6 Answers ...
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How do I pass parameters into a PHP script through a webpage?

I am calling a PHP script whenever a webpage loads. However, there is a parameter that the PHP script needs to run (which I normally pass through the command line when I am testing the script). ...
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What is the best method to merge two PHP objects?

...bj_merged = (object) array_merge((array) $obj1, (array) $obj2); This actually also works when objects have methods. (tested with PHP 5.3 and 5.6) share | improve this answer | ...
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Test PHP headers with PHPUnit

...78 Error: Class 'PHPUnit_Util_Configuration' not found in - on line 378 Call Stack: 0.0013 582512 1. {main}() -:0 Try add this to your bootstrap file to fix it: <?php if (!defined('PHPUNIT_COMPOSER_INSTALL')) { define('PHPUNIT_COMPOSER_INSTALL', __DIR__ . '/path/to/composer/ven...
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What is the canonical way to determine commandline vs. http execution of a PHP script?

... @Bobby, the example in the php.net docs actually matches both "cgi" and "cgi-fcgi" by just looking at the first three characters of the string ... that's why and it actually makes sense. If anything it's just to get back @hop for calling php no language for serious pro...
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Check if PHP session has already started

I have a PHP file that is sometimes called from a page that has started a session and sometimes from a page that doesn't have session started. Therefore when I have session_start() on this script I sometimes get the error message for "session already started". For that I've put these lines: ...
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What's wrong with using $_REQUEST[]?

...a number of posts on here saying not to use the $_REQUEST variable. I usually don't, but sometimes it's convenient. What's wrong with it? ...