Skip to content

Instantly share code, notes, and snippets.

nikic /
Last active Aug 25, 2021
Analysis of some weird evaluation order in PHP

Order of evaluation in PHP

Yesterday I found some people on my [favorite reddit][lolphp] wonder about the output of the following code:


$a = 1;
$c = $a + $a++;
ircmaxell / equality.php
Last active Apr 19, 2019
Unicode Set Functions
View equality.php
const ✓ = true;
const ✕ = false;
function ≠($left, $right) {
return $left != $right;
function ≅($left, $right) {
MadaraUchiha / mysql_comment.markdown
Last active May 9, 2019
Don't use MySQL functions in PHP - Comment for Stack Overflow
View mysql_comment.markdown
[**Please, don't use `mysql_*` functions in new code**]( They are no longer maintained [and are officially deprecated]( See the [**red box**]( Learn about [*prepared statements*]( instead, and use [PDO]( or [MySQLi]( - [this article]( will help you decide which. If you choose PDO, [here is a good tutorial](

Please, don't use mysql_* functions in new code. They are no longer maintained and are officially deprecated. See the red box? Learn about prepared statements instead, and use PDO or MySQLi - this article will help you decide which. If you choose PDO, here is a good tutorial.

hakre /
Last active Oct 5, 2015
SO copypad

This question appears to be off-topic because it is about ...

Tutoring with a software named Wordpress, here a Tutorial for Extending it with a specific Plugin and an individual Theme.

Tutoring a Software Product named Magento.

a very individual problem without given any further reference to commons in programming in a useful manner. See also: Stack Overflow question checklist

a Debugging request of larger chunks of non-isolated code that may (or may not) contain the code the question asks about. Instead the code should be reduced the a bare minimum example code that outlines the problem and question in a compact and self-explaining manner.

View special-background.php
* Special Background Wordpress Plugin
* @-wp-header Plugin Name: Special Background
* @-wp-header Plugin URI:
* @-wp-header Description: Example to show how to add a special background using exiting background admin page in core.
* @-wp-header Version: 0.2
* @-wp-header Author: Mike Schinkel, hakre
* @-wp-header Author URI:
evaisse / remove_accents.function.php
Created Aug 18, 2009
php function to remove accent from the input string string. An example string like `ÀØėÿᾜὨζὅБю` * will be translated to `AOeyIOzoBY`
View remove_accents.function.php
<?php # -*- coding: utf-8 -*-
// function remove_accents()
* Unaccent the input string string. An example string like `ÀØėÿᾜὨζὅБю`
* will be translated to `AOeyIOzoBY`. More complete than :
* strtr( (string)$str,
* "ÀÁÂÃÄÅàáâãäåÒÓÔÕÖØòóôõöøÈÉÊËèéêëÇçÌÍÎÏìíîïÙÚÛÜùúûüÿÑñ",
* "aaaaaaaaaaaaooooooooooooeeeeeeeecciiiiiiiiuuuuuuuuynn" );