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run code in 300+ PHP versions simultaneously
<?php $arr1 = range(0,10); $arr2 = array('key1'=>'value1','key2'=>'value2','key3'=>'value3'); $test1 = array_filter($arr2,function($e){ return $e[key2]; }); echo implode('',$arr1)."\t"; echo implode('',$arr2)."\t"; print_r($test1);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Undefined constant "key2" in /in/enOo3:6 Stack trace: #0 [internal function]: {closure}('value1') #1 /in/enOo3(6): array_filter(Array, Object(Closure)) #2 {main} thrown in /in/enOo3 on line 6
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant key2 - assumed 'key2' (this will throw an Error in a future version of PHP) in /in/enOo3 on line 6 Warning: Illegal string offset 'key2' in /in/enOo3 on line 6 Warning: Use of undefined constant key2 - assumed 'key2' (this will throw an Error in a future version of PHP) in /in/enOo3 on line 6 Warning: Illegal string offset 'key2' in /in/enOo3 on line 6 Warning: Use of undefined constant key2 - assumed 'key2' (this will throw an Error in a future version of PHP) in /in/enOo3 on line 6 Warning: Illegal string offset 'key2' in /in/enOo3 on line 6 012345678910 value1value2value3 Array ( [key1] => value1 [key2] => value2 [key3] => value3 )
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33
Notice: Use of undefined constant key2 - assumed 'key2' in /in/enOo3 on line 6 Warning: Illegal string offset 'key2' in /in/enOo3 on line 6 Notice: Use of undefined constant key2 - assumed 'key2' in /in/enOo3 on line 6 Warning: Illegal string offset 'key2' in /in/enOo3 on line 6 Notice: Use of undefined constant key2 - assumed 'key2' in /in/enOo3 on line 6 Warning: Illegal string offset 'key2' in /in/enOo3 on line 6 012345678910 value1value2value3 Array ( [key1] => value1 [key2] => value2 [key3] => value3 )
Output for 5.3.0 - 5.3.29
Notice: Use of undefined constant key2 - assumed 'key2' in /in/enOo3 on line 6 Notice: Use of undefined constant key2 - assumed 'key2' in /in/enOo3 on line 6 Notice: Use of undefined constant key2 - assumed 'key2' in /in/enOo3 on line 6 012345678910 value1value2value3 Array ( [key1] => value1 [key2] => value2 [key3] => value3 )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/enOo3 on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/enOo3 on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/enOo3 on line 6
Process exited with code 255.
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