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<?php $array1 = [ [ 'date' => '2012-01-10', 'result' => 65, 'name' => 'Les océans', ], [ 'date' => '2012-01-11', 'result' => 75, 'name' => 'Les mers', ], [ 'date' => '2012-01-13', 'result' => 66, 'name' => 'Les continents', 'type' => 'Scores', ] ]; $array2 = [ [ 'date_end' => '2012-01-12', 'result' => 60, 'name' => 'Step#1', 'type' => 'Summary', ] ]; $result = array_merge($array1, $array2); usort($result, fn($a, $b) => ($a['date'] ?? $a['date_end']) <=> ($b['date'] ?? $b['date_end'])); var_export($result);
Output for git.master_jit, git.master, rfc.property-hooks
array ( 0 => array ( 'date' => '2012-01-10', 'result' => 65, 'name' => 'Les océans', ), 1 => array ( 'date' => '2012-01-11', 'result' => 75, 'name' => 'Les mers', ), 2 => array ( 'date_end' => '2012-01-12', 'result' => 60, 'name' => 'Step#1', 'type' => 'Summary', ), 3 => array ( 'date' => '2012-01-13', 'result' => 66, 'name' => 'Les continents', 'type' => 'Scores', ), )

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