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run code in 300+ PHP versions simultaneously
<?php $array = [[6],[6],[6],[5,1],[3,3],[3,3],[3,2,1]]; $result = []; foreach ($array as $row) { $key = json_encode($row); $result[$key] = [$row, ($result[$key][1] ?? 0) + 1]; } echo json_encode(array_values($result));
Output for 7.4.0 - 7.4.33, 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
[[[6],3],[[5,1],1],[[3,3],2],[[3,2,1],1]]
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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113.25 ms | 407 KiB | 5 Q