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@ 2018-11-03T18:10:18Z

<?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);

Output for 5.6.38, 7.1.0 - 7.1.25, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0: Array ( [0] => Array ( [userId] => user1 [name] => Suman Mandal [age] => 20 [marks] => 80 ) [1] => Array ( [userId] => user3 [name] => Asif Rahman [age] => 25 [marks] => 90 ) )
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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