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run code in 300+ PHP versions simultaneously
<?php $arr = [['A', 'B'],['C', 'B'],['B', 'C'],['A', 'A'],['B', 'A'],['B', 'B'],]; $temp = []; // temporary container $new_arr = array_filter($arr, function($e) use(&$temp) { $orig = $e; // create an original copy sort($e); // sort if(!in_array($e, $temp)) { $temp[] = $e; // push if doesn't exist yet return $orig; // return the orig } }); print_r($new_arr);
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.27, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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 ( [0] => A [1] => B ) [1] => Array ( [0] => C [1] => B ) [3] => Array ( [0] => A [1] => A ) [5] => Array ( [0] => B [1] => B ) )
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 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/C2emU on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/C2emU on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/C2emU on line 3
Process exited with code 255.
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186.15 ms | 411 KiB | 5 Q