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<?php $a=array("abc"=>array("red","white","orange"),"def"=>array("green","vilot","yellow"),"xyz"=>array("blue","dark","pure")); function search_data($value, $array) { foreach ($array as $key => $val) { if(is_array($val) && in_array($value,$val)) { return $key; } } return null; } echo search_data("dark",$a);
Output for 7.0.0 - 7.0.26, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
xyz

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150.61 ms | 407 KiB | 5 Q