3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr = array( array( 'imp' => 1000, 'clk' => 100, 'date' => 20150601 ), array( 'imp' => 1002, 'clk' => 102, 'date' => 20150602 ), array( 'imp' => 1003, 'clk' => 103, 'date' => 20150601 ) ); $result = array_reduce($arr, function($left, $right) { if(isset($right['imp'])) $left['imp'] += $right['imp']; if(isset($right['clk'])) $left['clk'] += $right['clk']; return $left; }, [ 'imp' => 0, 'clk' => 0 ]); print_r($result);
Output for 5.4.0 - 7.2.6
Array ( [imp] => 3005 [clk] => 305 )
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/58v94 on line 28
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/58v94 on line 23
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/58v94 on line 23
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/58v94 on line 23
Process exited with code 255.