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<?php $arrays = [ [101 => "Abbottabad"], [102 => "Abdul Hakim"], [103 => "Ahmed Pur East"] ]; $res = []; foreach($arrays as $array) { $res[key($array)] = reset($array); } print_r($res);
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 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 - 8.3.25, 8.4.1 - 8.4.12
Array ( [101] => Abbottabad [102] => Abdul Hakim [103] => Ahmed Pur East )

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130.62 ms | 408 KiB | 5 Q