php - regex match string of exactly 6 numbers in text that has telephone numbers as well -
i have blocks of free text contain phone numbers , multiple 6 digit numbers need capture. 6 digit number has optional ','. examples of 6 digit numbers 123456, or 123,456, need differentiate phone number 1 234 456 8901 i have : preg_match_all(",\[\w_][0-9]{3}(?:,)[0-9]{3}[\w_][\d]\d",$html, $value); is there better way this? it's bit difficult review regex without sample input couple of observations: [0-9] can replaced \d (since, you're using @ end) [\d] same \d . it's character class , unless have more characters include it'ss fine without being enclosed in [] . (?:,) should , because neither want capture nor has quantifiers . ,\[\w_] here seems want use character class \ escape first [ . if need literal \ there; need escape \\ since it's special character.
