Online PHP editor | output for Xmg3a

<?php $students = Array( Array( 'userId' => 'user1', 'name' => 'Suman Mandal', 'age' => 20, ), Array( 'userId' => 'user2', 'name' => 'Amit Halder', 'age' => 30, ), Array( 'userId' => 'user3', 'name' => 'Asif Rahman', 'age' => 25, ), Array( 'userId' => 'user4', 'name' => 'Gopal Ghosh', 'age' => 21, ) ); $marks = Array( Array( 'userId' => 'user1', 'marks'=>80, ), Array( 'userId' => 'user3', 'marks'=>90, ) ); $marks_sheet = []; foreach ($marks as $mark) { foreach ($students as $student) { if ($student['userId'] === $mark['userId']) { $mark_sheet = $student; foreach ($mark as $key => $value) { $mark_sheet[$key] = $value; } $marks_sheet[] = $mark_sheet; } } } print_r($marks_sheet);