Online PHP editor | output for fAFn3

Output for 8.5.0: Warning: The float NAN is not representable as an int, cast occurred in /in/fAFn3 on line 6 Warning: unexpected NAN value was coerced to bool in /in/fAFn3 on line 6 float(NAN) int(0) bool(true) Warning: The float INF is not representable as an int, cast occurred in /in/fAFn3 on line 6 float(INF) int(0) bool(true) Warning: The float -INF is not representable as an int, cast occurred in /in/fAFn3 on line 6 float(-INF) int(0) bool(true)
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 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, 8.0.0 - 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: float(NAN) int(0) bool(true) float(INF) int(0) bool(true) float(-INF) int(0) bool(true)
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40: float(NAN) int(-9223372036854775808) bool(true) float(INF) int(-9223372036854775808) bool(true) float(-INF) int(-9223372036854775808) bool(true)
Output for 5.4.0 - 5.4.45: float(NAN) int(-9223372036854775808) bool(true) float(INF) int(0) bool(true) float(-INF) int(-9223372036854775808) bool(true)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/fAFn3 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5: Parse error: parse error, unexpected '[' in /in/fAFn3 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/fAFn3 on line 3
Process exited with code 255.