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Why are functions and methods in PHP case-insensitive?
Functions and methods in PHP are case-insensitive as illustrated in the following example.
2 Answers
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PHP random string generator
I'm trying to create a randomized string in PHP, and I get absolutely no output with this:
59 Answers
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Why would $_FILES be empty when uploading files to PHP?
...mpServer 2 installed on my Windows 7 computer. I'm using Apache 2.2.11 and PHP 5.2.11. When I attempt to upload any file from a form, it seems to upload, but in PHP, the $_FILES array is empty. There is no file in the c:\wamp\tmp folder. I have configured php.ini to allow file uploads and such...
PHP file_get_contents() and setting request headers
With PHP, is it possible to send HTTP headers with file_get_contents() ?
7 Answers
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How to do error logging in CodeIgniter (PHP)
I want error logging in PHP CodeIgniter. How do I enable error logging?
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5
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AJAX POST and Plus Sign ( + ) — How to Encode?
I'm POSTing the contents of a form field via AJAX to a PHP script and using JavaScript to escape(field_contents) . The problem is that any plus signs are being stripped out and replaced by spaces. How can I safely 'encode' the plus sign and then appropriately 'decode' it on the PHP side?
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How do I pass JavaScript variables to PHP?
I want to pass JavaScript variables to PHP using a hidden input in a form.
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What does it mean to start a PHP function with an ampersand?
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It's returning a reference, as mentioned already. In PHP 4, objects were assigned by value, just like any other value. This is highly unintuitive and contrary to how most other languages works.
To get around the problem, references were used for variables that pointed to obje...
PHP and Enumerations
I know that PHP doesn't have native Enumerations. But I have become accustomed to them from the Java world. I would love to use enums as a way to give predefined values which IDEs' auto-completion features could understand.
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Remove empty array elements
...ments that are i.e. exact string '0', you will need a custom callback:
// PHP 7.4 and later
print_r(array_filter($linksArray, fn($value) => !is_null($value) && $value !== ''));
// PHP 5.3 and later
print_r(array_filter($linksArray, function($value) { return !is_null($value) && $...