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run code in 200+ php & hhvm versions
Bugs & Features
<?php $array = array(0=>array('tekstJeden' => 'jakas wartosc')); array_walk($array, function(&$i) { $i = array_combine(array_map('ucfirst', array_keys($i)), $i); }); print_r($array);
based on rlIKZ
Output for 5.3.0 - 7.2.6
Array ( [0] => Array ( [TekstJeden] => jakas wartosc ) )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/UMNJt on line 4
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/UMNJt on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/UMNJt on line 4
Process exited with code 255.