Online PHP editor | output for ZQXPo

@ 2023-08-29T02:15:54Z

<?php

class Teacher
{
    public function getStudentTeacherColumn(array $data, int|string $col): array
    {
        return array_map([$this, 'myarraymap'], $data['student_teacher']);
    }
    
    private function myarraymap(array $studentTeacher): mixed
    {
        return $studentTeacher['user_id']; // statically accessing column to demonstrate desired output
    }
}

$data = [
    'student_teacher' => [
        ['user_id' => 1, 'user_name' => 'foo'],
        ['user_id' => 2, 'user_name' => 'bar'],
        ['user_id' => 3, 'user_name' => 'bam'],
    ]
];

$teacher = new Teacher;
var_export($teacher->getStudentTeacherColumn($data, 'user_id'));
echo "\n---\n";
$col = 'user_id';
var_export(array_column($data['student_teacher'], $col));

Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14, 8.5.0 - 8.5.1: array ( 0 => 1, 1 => 2, 2 => 3, ) --- array ( 0 => 1, 1 => 2, 2 => 3, )
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.
Output for 8.3.28: /bin/php-8.3.28: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.3.28) /bin/php-8.3.28: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.3.28) /bin/php-8.3.28: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.3.28) /bin/php-8.3.28: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.3.28)
Process exited with code 1.

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