Online PHP editor | output for 4Ze6h

Output for 8.5.0: Warning: Constant TRUE already defined, this will be an error in PHP 9 in /in/4Ze6h on line 2 Warning: Constant FALSE already defined, this will be an error in PHP 9 in /in/4Ze6h on line 3 bool(true) bool(true) bool(false) bool(false)
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 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14: Warning: Constant TRUE already defined in /in/4Ze6h on line 2 Warning: Constant FALSE already defined in /in/4Ze6h on line 3 bool(true) bool(true) bool(false) bool(false)
Output for 5.3.0 - 5.3.29, 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, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: bool(true) bool(true) bool(false) bool(false)
Output for 5.1.0: bool(false) bool(true) bool(true) bool(false)