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<?php $a = array('e' => 22, 'r' => 66, 't' => 88); $b = array('t' => 65); array_walk($a, function(&$value) { $value = 'e ' . $value; print $value ."\n"; }); print_r($a);
Output for git.master, git.master_jit, rfc.property-hooks
e 22 e 66 e 88 Array ( [e] => e 22 [r] => e 66 [t] => e 88 )

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