3v4l.org

run code in 300+ PHP versions simultaneously
<?php /** * @param string $haystack * @param string $needle * * @return bool */ function str_starts_with( $haystack, $needle ) { $length = strlen( $needle ); var_dump(substr( $haystack, 0, $length ), $needle); var_dump(substr( $haystack, 0, $length ) == $needle); var_dump(substr( $haystack, 0, $length ) === $needle); var_dump(hash_equals(substr( $haystack, 0, $length ), $needle)); } str_starts_with( '', '' );
Output for 8.1.19 - 8.1.28, 8.2.6 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Cannot redeclare str_starts_with() in /in/4XvPG on line 15
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: Cannot redeclare str_starts_with() in /in/4XvPG on line 15
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.18, 8.2.0 - 8.2.5
Fatal error: Cannot redeclare str_starts_with() in /in/4XvPG on line 10
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
string(0) "" string(0) "" bool(true) bool(true) bool(true)
Output for 5.6.38
bool(false) string(0) "" bool(true) bool(false) Warning: hash_equals(): Expected known_string to be a string, boolean given in /in/4XvPG on line 15 bool(false)

preferences:
173.53 ms | 401 KiB | 217 Q