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run code in 300+ PHP versions simultaneously

@ 2025-01-18T20:06:59Z

<?php

$stens = [
    'realistic' => [
        's1' => [10],
        's2' => [11,12],
        's3' => [13,14,15,16],
        's4' => [17,18,19,20,21],
        's5' => [22,23,24,25,26,27,28,29],
        's6' => [30,31,32,33,34,35,36],
        's7' => [37,48,39,40,41],
        's8' => [42,43,44,45,46,47],
        's9' => [48,49],
        's10' => [50],
    ],
    'research' => [
        's1' => [10,11,12,13,14],
        's2' => [15],
        's3' => [16,17,18,19,20],
        's4' => [21,22,23,24,25,26,27,28],
        's5' => [29,30,31,32,33],
        's6' => [34,35,36,37,38],
        's7' => [39,40,41,42],
        's8' => [43,44,45,46,47],
        's9' => [48,49],
        's10' => [50],
    ],
];

$raw_data = [
   'realistic' => 18,
   'research' => 43,
];

$result = [];
foreach ($raw_data as $k => $v) {
    $result[$k] = array_find_key(
        $stens[$k],
        fn($s) => in_array($v, $s)
    );
}
var_export($result);

Output for 8.4.1 - 8.4.14, 8.5.0: array ( 'realistic' => 's4', 'research' => 's8', )
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 8.1.32, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28: Fatal error: Uncaught Error: Call to undefined function array_find_key() in /in/tF8sM:37 Stack trace: #0 {main} thrown in /in/tF8sM on line 37
Process exited with code 255.

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