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<?php $a=['a','b','a','c','a','d']; $output=[]; foreach ($a as $v) { $output[$v] = ($output[$v] ?? 0) + 1; } print_r($output);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [a] => 3 [b] => 1 [c] => 1 [d] => 1 )

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