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<?php $values = [10, 10, 5, 8]; $found = []; foreach ($values as $index => $value) { if (!isset($found[$value])) { $found[$value] = $index; } else { unset($values[$index], $values[$found[$value]]); } } var_export($values);
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7
array ( 2 => 5, 3 => 8, )
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array ( 2 => 5, 3 => 8, )
preferences:
142.3 ms | 402 KiB | 158 Q