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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);
Output for 7.4.0
Notice: Indirect modification of overloaded element of Article has no effect in /in/upViG on line 27 Fatal error: Uncaught Error: Cannot assign by reference to an array dimension of an object in /in/upViG:27 Stack trace: #0 {main} thrown in /in/upViG on line 27
Process exited with code 255.
Output for 7.0.0 - 7.2.6
Notice: Indirect modification of overloaded element of Article has no effect in /in/upViG on line 27 Fatal error: Uncaught Error: Cannot assign by reference to overloaded object in /in/upViG:27 Stack trace: #0 {main} thrown in /in/upViG on line 27
Process exited with code 255.
Output for 5.2.1 - 5.6.28
Notice: Indirect modification of overloaded element of Article has no effect in /in/upViG on line 27 Fatal error: Cannot assign by reference to overloaded object in /in/upViG on line 27
Process exited with code 255.
Output for 5.0.0 - 5.2.0
Fatal error: Objects used as arrays in post/pre increment/decrement must return values by reference in /in/upViG on line 27
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/upViG on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting '{' in /in/upViG on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/upViG on line 3
Process exited with code 255.