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<?php $str = "[1,1x,1x,1x][2,2x,2x,2x]"; $arr =[]; preg_replace_callback('/\[(.*?)\]/', function($m) use (&$arr){ $arr[] = explode(',',preg_replace('/([\w]+)/', "[$1]", $m[1])); }, $str); print_r($arr); var_dump($arr);
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Array ( [0] => Array ( [0] => [1] [1] => [1x] [2] => [1x] [3] => [1x] ) [1] => Array ( [0] => [2] [1] => [2x] [2] => [2x] [3] => [2x] ) ) array(2) { [0]=> array(4) { [0]=> string(3) "[1]" [1]=> string(4) "[1x]" [2]=> string(4) "[1x]" [3]=> string(4) "[1x]" } [1]=> array(4) { [0]=> string(3) "[2]" [1]=> string(4) "[2x]" [2]=> string(4) "[2x]" [3]=> string(4) "[2x]" } }
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] => [1] [1] => [1x] [2] => [1x] [3] => [1x] ) [1] => Array ( [0] => [2] [1] => [2x] [2] => [2x] [3] => [2x] ) ) array(2) { [0]=> array(4) { [0]=> string(3) "[1]" [1]=> string(4) "[1x]" [2]=> string(4) "[1x]" [3]=> string(4) "[1x]" } [1]=> array(4) { [0]=> string(3) "[2]" [1]=> string(4) "[2x]" [2]=> string(4) "[2x]" [3]=> string(4) "[2x]" } }

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