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<?php $arr_1 = ['[param1]', 'remove', 'demo', '[param2]', 'some', '[param3]']; $arr_2 = ['value1', 'remove', 'some', 'value2', 'demo', 'value3']; var_export( [ 'clean1' => array_values(array_diff_assoc($arr_1, $arr_2)), 'clean2' => array_values(array_diff_assoc($arr_2, $arr_1)) ] );
Output for 7.2.0 - 7.2.33, 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 ( 'clean1' => array ( 0 => '[param1]', 1 => 'demo', 2 => '[param2]', 3 => 'some', 4 => '[param3]', ), 'clean2' => array ( 0 => 'value1', 1 => 'some', 2 => 'value2', 3 => 'demo', 4 => 'value3', ), )
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 ( 'clean1' => array ( 0 => '[param1]', 1 => 'demo', 2 => '[param2]', 3 => 'some', 4 => '[param3]', ), 'clean2' => array ( 0 => 'value1', 1 => 'some', 2 => 'value2', 3 => 'demo', 4 => 'value3', ), )

preferences:
81.64 ms | 402 KiB | 183 Q