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<?php $arrayName = array(1,2,1,3,4,3,2,5); $values = array_unique($arrayName); Foreach($values as $val){ $count[$val] = count(array_keys($arrayName, $val)); } Var_dump($count);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.13
array(5) { [1]=> int(2) [2]=> int(2) [3]=> int(2) [4]=> int(1) [5]=> int(1) }

preferences:
79.76 ms | 408 KiB | 5 Q