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<?php $students= array( array("name"=>"...", "gender"=>"male"), array("name"=>"...", "gender"=>"female"), array("name"=>"...", "gender"=>"female"), array("name"=>"...", "gender"=>"female"), array("name"=>"...", "gender"=>"male"), array("name"=>"...", "gender"=>"male"), array("name"=>"...", "gender"=>"male"), array("name"=>"...", "gender"=>"male"), array("name"=>"...", "gender"=>"male"), ); foreach($students as $stu){ if($stu['gender'] == 'male'){ $male[] = $stu; }else{ $female[] = $stu; } } $male = array_combine(Range(0,(count($male)-1)*2,2),$male); $female = array_combine(Range(1,count($female)*2,2),$female); $all = array_replace($male, $female); ksort($all); $all = array_values($all); var_dump($all);
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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
array(9) { [0]=> array(2) { ["name"]=> string(3) "..." ["gender"]=> string(4) "male" } [1]=> array(2) { ["name"]=> string(3) "..." ["gender"]=> string(6) "female" } [2]=> array(2) { ["name"]=> string(3) "..." ["gender"]=> string(4) "male" } [3]=> array(2) { ["name"]=> string(3) "..." ["gender"]=> string(6) "female" } [4]=> array(2) { ["name"]=> string(3) "..." ["gender"]=> string(4) "male" } [5]=> array(2) { ["name"]=> string(3) "..." ["gender"]=> string(6) "female" } [6]=> array(2) { ["name"]=> string(3) "..." ["gender"]=> string(4) "male" } [7]=> array(2) { ["name"]=> string(3) "..." ["gender"]=> string(4) "male" } [8]=> array(2) { ["name"]=> string(3) "..." ["gender"]=> string(4) "male" } }

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