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<?php $p = array( 'test' => 7, 'checkbox_2' => 'on', 'checkbox_4' => 'on', 'checkbox_10' => 'on', 'Submit' => '', 'name' => 20, ); foreach ($p as $key => $val) { if (substr($key, 0, strlen('checkbox_')) == 'checkbox_') { echo substr($key, strlen('checkbox_')) . PHP_EOL; } }
Output for git.master, git.master_jit, rfc.property-hooks
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