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<?php $column_names= [ 0=>'student_id', 1=>'college_name', 2=>'name' ]; $student_details=[ 0=>[ 0=>'1', 1=>'xxx', 2=>'aaa' ], 1=>[ 0=>'2', 1=>'yyy', 2=>'bbb' ] ]; foreach($student_details as &$sub){ $sub = array_combine($column_names, $sub); } Var_dump($student_details);
Output for git.master_jit, git.master, rfc.property-hooks
array(2) { [0]=> array(3) { ["student_id"]=> string(1) "1" ["college_name"]=> string(3) "xxx" ["name"]=> string(3) "aaa" } [1]=> &array(3) { ["student_id"]=> string(1) "2" ["college_name"]=> string(3) "yyy" ["name"]=> string(3) "bbb" } }

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