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<?php var_dump(preg_match('~^(hello\#world)\z~', 'hello#world')); var_dump(preg_match('~^(hello\#world)\z~x', 'hello#world')); var_dump(preg_match('~^(hello#world)\z~', 'hello#world')); var_dump(preg_match('~^(hello#world)\z~x', 'hello#world'));
Output for 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.26, 8.3.0 - 8.3.15, 8.4.1 - 8.4.2
int(1) int(1) int(1) Warning: preg_match(): Compilation failed: missing closing parenthesis at offset 16 in /in/f1eg0 on line 7 bool(false)
Output for 7.0.0 - 7.0.24, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33
int(1) int(1) int(1) Warning: preg_match(): Compilation failed: missing ) at offset 16 in /in/f1eg0 on line 7 bool(false)
preferences:
53.66 ms | 407 KiB | 5 Q