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run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr1= array('a' => "XL"); $arr2= array('a' => "XLd",'b'=>"CDW"); array_walk($arr2, function($key, &$val) use $arr1{ if(isset($arr1[$key])){ $val = $arr1[$key]; } else { $val = ''; } }); print_r($arr2);
based on 3ebQ1
Output for 5.6.0 - 5.6.30, 7.0.0 - 7.1.6
Parse error: syntax error, unexpected '$arr1' (T_VARIABLE), expecting '(' in /in/KC4vk on line 6
Process exited with code 255.
Output for hhvm-3.15.4
Fatal error: Uncaught Error: syntax error, unexpected T_VARIABLE, expecting '(' in /in/KC4vk:6 Stack trace: #0 {main}
Process exited with code 255.