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<?php $ar = ['Pig', 'Dog', 'Cat', 'Pig']; print_r(array_filter($ar, function($val){return $val === 'Pig';}));//we want pigs print_r(array_filter($ar, function($val){return $val !== 'Pig';}));//we don't want them
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Pig [3] => Pig ) Array ( [1] => Dog [2] => Cat )

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