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<?php $arr_a = array("AAA","","CCC",""); $arr_b = array("a1","b1","a2","b2","a3","b3","a4","b4"); $arr_c = array_chunk($arr_b,2); $c = array_combine($arr_a,$arr_c); $limp= array_filter($c); $filteredkeys = array_filter(array_keys($limp)); $filtered = array_intersect_key($limp, array_flip($filteredkeys)); var_dump($filtered);
Output for 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(2) { ["AAA"]=> array(2) { [0]=> string(2) "a1" [1]=> string(2) "b1" } ["CCC"]=> array(2) { [0]=> string(2) "a3" [1]=> string(2) "b3" } }
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) { ["AAA"]=> array(2) { [0]=> string(2) "a1" [1]=> string(2) "b1" } ["CCC"]=> array(2) { [0]=> string(2) "a3" [1]=> string(2) "b3" } }

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