3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public function run(?stdClass $x, $y) { } } class B extends A { public function run(stdClass $x = null, $y) { } }
Output for 8.4.1 - 8.4.14, 8.5.0 - 8.5.1
Deprecated: B::run(): Implicitly marking parameter $x as nullable is deprecated, the explicit nullable type must be used instead in /in/4pQLN on line 12
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
preferences:
84.89 ms | 409 KiB | 5 Q