Simple Way To Validate Phone Numbers In Php, How To Validate Phone Number Using Php

The regular expressions below can be used khổng lồ validate if a string is a valid phone number format and to extract a phone number from a string. Please lưu ý that this validation can not tell if a phone number actually exists.

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The basic international phone number validation

A simple regex lớn validate string against a valid international phone number format without delimiters và with an optional plus sign:

// Validate phone number$phone_number_validation_regex = "/^\+?<1-9><0-9>7,14$/"; echo preg_match($phone_number_validation_regex, "+12223334444"); // returns 1// Extract phone number from a string$extract_phone_number_pattern = "/\+?<1-9><0-9>7,14/";$string_to_match = "You can reach me out at +12223334444 and +56667778888";preg_match_all($extract_phone_number_pattern, $string_to_match, $matches);// matches<0> is <"+12223334444", "+56667778888">

The more complex phone number validation

This regular expression will match phone numbers entered with delimiters (spaces, dots, brackets, etc.)

// Validate phone number$phone_number_validation_regex = "/^\+?\d1,4?<-.\s>?$?\d1,3?$?<-.\s>?\d1,4<-.\s>?\d1,4<-.\s>?\d1,9$/";echo preg_match($phone_number_validation_regex, "+1 (615) 243-5172"); // returns 1
Extra information about validating phone number

While validation of phone numbers using regex can give a possibility to check the format of the phone number, it does not guarantee that the number exists.

There might be also an option to leave a phone number field without any validation since some users might have:

More complex phone numbers with extensionsThe different phone numbers for calling them on a different time of day