preg_grep Return array entries that match the pattern &reftitle.description; arrayfalsepreg_grep stringpattern arrayarray intflags0 Returns the array consisting of the elements of the array array that match the given pattern. &reftitle.parameters; pattern The pattern to search for, as a string. array The input array. flags If set to PREG_GREP_INVERT, this function returns the elements of the input array that do not match the given pattern. &reftitle.returnvalues; Returns an array indexed using the keys from the array array, &return.falseforfailure;. &reftitle.examples; ]]> &reftitle.seealso; PCRE Patterns preg_quote preg_match_all preg_filter preg_last_error