<?php function array_replace_key($search, $replace, array $target) { $return = array(); foreach ($target as $key => $val) { if ($search === $key) { $return[$replace] = $val; } else { $return[$key] = $val; } } } $a = array('a' => 'franz', 'b' => 'cheryl', 'c' => 'samantha'); var_dump(array_replace_key('a', 'a-xxx', $a));
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