Online PHP editor | output for cQRRq

Output for 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, 8.5.0 - 8.5.1: Warning: preg_match(): Compilation failed: missing closing parenthesis at offset 14 in /in/cQRRq on line 4 string(7) "hey foo" bool(false) Warning: preg_match(): Compilation failed: missing closing parenthesis at offset 14 in /in/cQRRq on line 4 string(4) "afoo" bool(false) Warning: preg_match(): Compilation failed: missing closing parenthesis at offset 14 in /in/cQRRq on line 4 string(7) "abarf00" bool(false) Warning: preg_match(): Compilation failed: missing closing parenthesis at offset 14 in /in/cQRRq on line 4 string(4) "puff" 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 7.1.0 - 7.1.33, 7.2.0 - 7.2.33: Warning: preg_match(): Compilation failed: missing ) at offset 14 in /in/cQRRq on line 4 string(7) "hey foo" bool(false) Warning: preg_match(): Compilation failed: missing ) at offset 14 in /in/cQRRq on line 4 string(4) "afoo" bool(false) Warning: preg_match(): Compilation failed: missing ) at offset 14 in /in/cQRRq on line 4 string(7) "abarf00" bool(false) Warning: preg_match(): Compilation failed: missing ) at offset 14 in /in/cQRRq on line 4 string(4) "puff" bool(false)