preg_last_error
(PHP 5 >= 5.2.0)
preg_last_error — Returns the error code of the last PCRE regex execution
说明
int preg_last_error
( void
)
Returns the error code of the last PCRE regex execution.
返回值
Returns one of the following constants (explained on their own page):
- PREG_NO_ERROR
- PREG_INTERNAL_ERROR
- PREG_BACKTRACK_LIMIT_ERROR (see also pcre.backtrack_limit)
- PREG_RECURSION_LIMIT_ERROR (see also pcre.recursion_limit)
- PREG_BAD_UTF8_ERROR
