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<?php $array1 = ['今日', '天気', '晴れ', '雨']; $array2 = ['の', 'は', 'のち', 'です']; $a = array_combine($array1, $array2); $b = serialize($a); $c = preg_replace('|[:print:]|', '', $b); var_dump($c,$b, $a);
Output for 7.0.0 - 7.0.20, 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
Warning: preg_replace(): Compilation failed: POSIX named classes are supported only within a class at offset 0 in /in/gXX5G on line 7 NULL string(101) "a:4:{s:6:"今日";s:3:"の";s:6:"天気";s:3:"は";s:6:"晴れ";s:6:"のち";s:3:"雨";s:6:"です";}" array(4) { ["今日"]=> string(3) "の" ["天気"]=> string(3) "は" ["晴れ"]=> string(6) "のち" ["雨"]=> string(6) "です" }
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 Warning: preg_replace(): Compilation failed: POSIX named classes are supported only within a class at offset 0 in /in/gXX5G on line 7 NULL string(101) "a:4:{s:6:"今日";s:3:"の";s:6:"天気";s:3:"は";s:6:"晴れ";s:6:"のち";s:3:"雨";s:6:"です";}" array(4) { ["今日"]=> string(3) "の" ["天気"]=> string(3) "は" ["晴れ"]=> string(6) "のち" ["雨"]=> string(6) "です" }

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