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run code in 300+ PHP versions simultaneously
<?php var_dump(setlocale(LC_ALL, 'en_US.UTF-8')); var_dump(str_ireplace("б", "1", "111ббб"));
Output for 7.2.29 - 7.2.33, 7.3.16 - 7.3.33, 7.4.3 - 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
string(11) "en_US.UTF-8" string(6) "111111"
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 string(11) "en_US.UTF-8" string(6) "111111"
Output for 7.0.0 - 7.0.23, 7.1.0 - 7.1.20, 7.2.6, 7.4.0
bool(false) string(6) "111111"

preferences:
143.96 ms | 402 KiB | 176 Q