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<?php define('DEFINED', '1.3.0.0'); $version = '1.6.1.1'; var_dump ( version_compare(DEFINED, $version, '>')); var_dump ( version_compare(NOT_DEFINED, $version, '>')); var_dump ( version_compare(DEFINED, $version, '<')); var_dump ( version_compare(NOT_DEFINED, $version, '<'));
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
bool(false) Fatal error: Uncaught Error: Undefined constant "NOT_DEFINED" in /in/K3VQF:7 Stack trace: #0 {main} thrown in /in/K3VQF on line 7
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 bool(false) Fatal error: Uncaught Error: Undefined constant "NOT_DEFINED" in /in/K3VQF:7 Stack trace: #0 {main} thrown in /in/K3VQF on line 7
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
bool(false) Warning: Use of undefined constant NOT_DEFINED - assumed 'NOT_DEFINED' (this will throw an Error in a future version of PHP) in /in/K3VQF on line 7 bool(false) bool(true) Warning: Use of undefined constant NOT_DEFINED - assumed 'NOT_DEFINED' (this will throw an Error in a future version of PHP) in /in/K3VQF on line 10 bool(true)
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
bool(false) Notice: Use of undefined constant NOT_DEFINED - assumed 'NOT_DEFINED' in /in/K3VQF on line 7 bool(false) bool(true) Notice: Use of undefined constant NOT_DEFINED - assumed 'NOT_DEFINED' in /in/K3VQF on line 10 bool(true)
preferences:
236.62 ms | 403 KiB | 375 Q