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run code in 200+ php & hhvm versions
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<?php function aa (&$i) { $i = array_combine(array_map('ucfirst', array_keys($i)), $i); } $array = array(0=>array('tekstJeden' => 'jakas wartosc')); array_walk($array,'aa'); print_r($array);
based on 3jvOA
Output for 5.0.0 - 7.3.0rc4
Array ( [0] => Array ( [TekstJeden] => jakas wartosc ) )
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_combine() in /in/k1q0D on line 2
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: array_combine() in /in/k1q0D on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_combine() in /in/k1q0D on line 2