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run code in 200+ PHP versions simultaneously
<?php class Article implements ArrayAccess { public $title; function __construct($title) { $this->title = $title; } function offsetSet($key, $value){ $this->{$key} = &$value; } function &offsetGet($key){ return $this->{$key}; } function offsetUnset($key){ unset($this->{$key}); } function offsetExists($offset) { return array_key_exists($offset,get_object_vars($this)); } } // Create the object $A = new Article('SPL Rocks'); // Change the title using array syntax using reference $str = 'SPL _really_ rocks'; $A['title'] =&$str; // Check what it looks like again print_r($A);
based on upViG
Output for 7.4.0 - 7.4.1
Fatal error: Uncaught Error: Cannot assign by reference to an array dimension of an object in /in/muTTS:27 Stack trace: #0 {main} thrown in /in/muTTS on line 27
Process exited with code 255.
Output for 7.3.0 - 7.3.13
Fatal error: Uncaught Error: Cannot assign by reference to overloaded object in /in/muTTS:27 Stack trace: #0 {main} thrown in /in/muTTS on line 27
Process exited with code 255.
Output for 7.0.0 - 7.2.26
Article Object ( [title] => SPL Rocks )
Output for 5.5.0 - 5.6.40
Fatal error: Cannot assign by reference to overloaded object in /in/muTTS on line 27
Process exited with code 255.