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<?php $arr1 = array( array(0 => "1", 1 => "1"), array(0 => "2", 1 => "2"), ); $arr2 = array( array(0 => "a", 1 => "b"), array(0 => "c", 1 => "d"), ); $result = []; foreach($arr1 as $key=>$value){ foreach($value as $k=>$val){ $result[$key][$k] = [$val,$arr2[$key][$k]]; } } print_r($result);
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 ( [0] => Array ( [0] => Array ( [0] => 1 [1] => a ) [1] => Array ( [0] => 1 [1] => b ) ) [1] => Array ( [0] => Array ( [0] => 2 [1] => c ) [1] => Array ( [0] => 2 [1] => d ) ) )
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 ( [0] => Array ( [0] => Array ( [0] => 1 [1] => a ) [1] => Array ( [0] => 1 [1] => b ) ) [1] => Array ( [0] => Array ( [0] => 2 [1] => c ) [1] => Array ( [0] => 2 [1] => d ) ) )

preferences:
176.17 ms | 403 KiB | 154 Q