Online PHP editor | rfc for DAaQ6

Output for git.master, git.master_jit, rfc.property-hooks: <!doctype html> <html> <head> <meta charset="utf-8"> <title>PHP comparisions</title> <style> table { border-collapse: collapse; } th, td { margin: 0; padding: 7px; border: 1px solid #ddd; } th { font-weight: normal; } tbody th { text-align: left; } td { text-align: center; } span.true { color: green; } span.false { color: red; } </style> </head> <body> <table> <thead><tr> <th></th> <th>if(...)</th> <th>empty</th> <th>is_null</th> <th>is_numeric</th> <th>== 0</th><th>=== 0</th><th>== ""</th><th>=== ""</th><th>== "0"</th><th>=== "0"</th><th>== null</th><th>=== null</th><th>== false</th><th>=== false</th><th>== array()</th><th>=== array()</th><th>== array(null)</th><th>=== array(null)</th><th>== array(false)</th><th>=== array(false)</th><th>== array(0)</th><th>=== array(0)</th><th>== array("0")</th><th>=== array("0")</th> </tr></thead> <tbody><tr> <th>0</th> <td>✗</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✓</td> <td>✓</td> <td>✗</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> </tr><tr> <th>""</th> <td>✗</td> <td>✓</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✓</td> <td>✓</td> <td>✗</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> </tr><tr> <th>"0"</th> <td>✗</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✓</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✓</td> <td>✓</td> <td>✗</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> </tr><tr> <th>null</th> <td>✗</td> <td>✓</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✓</td> <td>✓</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> </tr><tr> <th>false</th> <td>✗</td> <td>✓</td> <td>✗</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✓</td> <td>✓</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> </tr><tr> <th>array()</th> <td>✗</td> <td>✓</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✓</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> </tr><tr> <th>array(null)</th> <td>✓</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✓</td> <td>✓</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✗</td> <td>✗</td> </tr><tr> <th>array(false)</th> <td>✓</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✓</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✗</td> </tr><tr> <th>array(0)</th> <td>✓</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✓</td> <td>✓</td> <td>✗</td> </tr><tr> <th>array("0")</th> <td>✓</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✗</td> <td>✓</td> <td>✓</td> </tr></tbody> </table> </body> </html>

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7