3v4l.org

run code in 300+ PHP versions simultaneously
<?php class C { function __toString(): bool { return 'instance of C'; } }
Output for 8.5.0
Fatal error: C::__toString(): Return type must be string when declared in /in/5010J on line 3 Stack trace: #0 {main}
Process exited with code 255.
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 8.0.14 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14
Fatal error: C::__toString(): Return type must be string when declared in /in/5010J on line 3
Process exited with code 255.
Output for 8.0.0 - 8.0.13
Fatal error: Declaration of C::__toString(): bool must be compatible with Stringable::__toString(): string in /in/5010J on line 3
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

preferences:
45.98 ms | 412 KiB | 5 Q