Online PHP editor | output for adrYV

<?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, ) ); $students = array_column($students, null, 'userId'); $marks = array_column($marks, null, 'userId'); $marks_sheet = array_intersect_key(array_replace_recursive($students, $marks), $marks); print_r($marks_sheet);