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<?php $a = [ "a" => ['keycode' => '0001','date' =>"2015-09-08"], "b" => ['keycode' => '0002','date' =>"2015-09-05"], "c" => ['keycode' => '0003','date' =>"2015-09-04"], "d" => ['keycode' => '0001','date' =>"2015-09-01"], "e" => ['keycode' => '0001','date' =>"2015-10-01"] ]; $arr = array_column($a, "date", "keycode"); echo $arr["0001"]; // should actually be 2015-09-01
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.14
2015-10-01

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150.93 ms | 406 KiB | 5 Q