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<?php function length(string $str): int { return 0; } $data = ['hello', 'world']; usort($data, 'length'); // works usort($data, 'strlen'); // does not work
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 - 8.3.7
Fatal error: Uncaught ArgumentCountError: strlen() expects exactly 1 argument, 2 given in /in/SRPnb:13 Stack trace: #0 [internal function]: strlen('hello', 'world') #1 /in/SRPnb(13): usort(Array, 'strlen') #2 {main} thrown in /in/SRPnb on line 13
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 ArgumentCountError: strlen() expects exactly 1 argument, 2 given in /in/SRPnb:13 Stack trace: #0 [internal function]: strlen('hello', 'world') #1 /in/SRPnb(13): usort(Array, 'strlen') #2 {main} thrown in /in/SRPnb on line 13
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: strlen() expects exactly 1 parameter, 2 given in /in/SRPnb on line 13
preferences:
145.05 ms | 402 KiB | 157 Q