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run code in 150+ php & hhvm versions
Bugs & Features
<?php class NameObj { public $name; function __construct($name){ $this->name = $name; } } class IdObj{ public $id; function __construct($id){ $this->id = $id; } } $idArray = array( new IdObj(1), new IdObj(2), new IdObj(3) ); $nameArray = array( new NameObj('1 - Object 1 Name'), new NameObj('2 - Object 2 Name') ); function custom_diff($oId, $oName){ $temp = $oId; $oId = $oId instanceof IdObj?$oId:$oName; $oName = $oName instanceof $oName?$oName:$temp; $splitName = explode(' - ', $oName->name); $idFromName = $splitName[0]; $id = $oId->id; if($idFromName == $id) return 0; return $idFromName > $id ? 1 : -1; } $missing_objects = array_udiff($idArray, $nameArray, 'custom_diff'); print_r($missing_objects);
Output for 5.2.6 - 7.1.0
Notice: Undefined property: IdObj::$name in /in/gjYfc on line 37 Notice: Undefined property: IdObj::$name in /in/gjYfc on line 37 Notice: Undefined property: NameObj::$id in /in/gjYfc on line 40 Notice: Undefined property: IdObj::$name in /in/gjYfc on line 37 Notice: Undefined property: IdObj::$name in /in/gjYfc on line 37 Array ( [1] => IdObj Object ( [id] => 2 ) [2] => IdObj Object ( [id] => 3 ) )
Output for 5.0.0 - 5.2.5
Notice: Undefined property: IdObj::$name in /in/gjYfc on line 37 Notice: Undefined property: IdObj::$name in /in/gjYfc on line 37 Notice: Undefined property: NameObj::$id in /in/gjYfc on line 40 Notice: Undefined property: IdObj::$name in /in/gjYfc on line 37 Notice: Undefined property: IdObj::$name in /in/gjYfc on line 37 Array ( [1] => IdObj Object ( [id] => 2 ) [2] => IdObj Object ( [id] => 3 ) )
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/gjYfc on line 5
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 T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/gjYfc on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/gjYfc on line 5
Process exited with code 255.