3v4l.org

run code in 300+ PHP versions simultaneously
<?php // does not trigger deprecation warning function foo(int $param_optional = null, int $param_required) {} // triggers deprecation warning function bar(int $param_optional = 1, int $param_required) {}
Output for 8.4.1 - 8.4.14, 8.5.0 - 8.5.1
Deprecated: foo(): Implicitly marking parameter $param_optional as nullable is deprecated, the explicit nullable type must be used instead in /in/biVG1 on line 4 Deprecated: bar(): Optional parameter $param_optional declared before required parameter $param_required is implicitly treated as a required parameter in /in/biVG1 on line 7
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28
Deprecated: Optional parameter $param_optional declared before required parameter $param_required is implicitly treated as a required parameter in /in/biVG1 on line 7
Output for 8.0.1 - 8.0.30
Deprecated: Required parameter $param_required follows optional parameter $param_optional in /in/biVG1 on line 7
Output for 7.4.0 - 7.4.33

preferences:
170.17 ms | 411 KiB | 5 Q