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<?php setlocale('LC_ALL', 'C'); var_dump( preg_match( '`^\w+$`u', 'Iñtërnâtiônàlizætiøn' ) );
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught TypeError: setlocale(): Argument #1 ($category) must be of type int, string given in /in/eJVTY:3 Stack trace: #0 /in/eJVTY(3): setlocale('LC_ALL', 'C') #1 {main} thrown in /in/eJVTY on line 3
Process exited with code 255.
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 Fatal error: Uncaught TypeError: setlocale(): Argument #1 ($category) must be of type int, string given in /in/eJVTY:3 Stack trace: #0 /in/eJVTY(3): setlocale('LC_ALL', 'C') #1 {main} thrown in /in/eJVTY on line 3
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: setlocale() expects parameter 1 to be int, string given in /in/eJVTY on line 3 int(1)
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
Warning: setlocale() expects parameter 1 to be integer, string given in /in/eJVTY on line 3 int(1)
Output for 5.3.4 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Deprecated: setlocale(): Passing locale category name as string is deprecated. Use the LC_* -constants instead in /in/eJVTY on line 3 int(1)
Output for 5.3.0 - 5.3.3
Deprecated: setlocale(): Passing locale category name as string is deprecated. Use the LC_* -constants instead in /in/eJVTY on line 3 int(0)
Output for 5.2.5 - 5.2.17
Warning: setlocale(): Passing locale category name as string is deprecated. Use the LC_* -constants instead in /in/eJVTY on line 3 int(0)
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.4
Warning: setlocale(): Passing locale category name as string is deprecated. Use the LC_* -constants instead. in /in/eJVTY on line 3 int(0)
Output for 4.3.0 - 4.3.1
Warning: setlocale() [http://www.php.net/function.setlocale]: Passing locale category name as string is deprecated. Use the LC_* -constants instead. in /in/eJVTY on line 3 int(0)

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