Online PHP editor | output for TBbUF

@ 2023-03-07T00:27:12Z

<?php

$j[] = 'ma_1_49812_5318.jpg';
$j[] = 'ma_1_49812_5319.jpg';
$j[] = 'ma_1_49813_5320.jpg';
$j[] = 'ma_1_49813_5321.jpg';

$result = [];
foreach ($j as $filename) {
    $groupBy = preg_replace('/_[^_]+$/', '', $filename);
    if (!isset($ref[$groupBy])) {
        $ref[$groupBy] = $filename;
        $result[] = &$ref[$groupBy];
    } else {
        $ref[$groupBy] .= "|$filename";
    }
}
var_export($result);

Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0: array ( 0 => 'ma_1_49812_5318.jpg|ma_1_49812_5319.jpg', 1 => 'ma_1_49813_5320.jpg|ma_1_49813_5321.jpg', )
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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