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<?php $string = "å\nä"; var_export(preg_split('/.\K/u', $string, 0, PREG_SPLIT_NO_EMPTY)); echo "\n---\n"; var_export(preg_split('/.\K/us', $string, 0, PREG_SPLIT_NO_EMPTY)); echo "\n---\n"; var_export(preg_split('/\X\K/u', $string, 0, PREG_SPLIT_NO_EMPTY));
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 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array ( 0 => 'å', 1 => ' ä', ) --- array ( 0 => 'å', 1 => ' ', 2 => 'ä', ) --- array ( 0 => 'å', 1 => ' ', 2 => 'ä', )
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 => 'å', 1 => ' ä', ) --- array ( 0 => 'å', 1 => ' ', 2 => 'ä', ) --- array ( 0 => 'å', 1 => ' ', 2 => 'ä', )

preferences:
168.81 ms | 402 KiB | 156 Q