Regular expression for PHP verification-php Tutorial

PHP commonly used to verify the validity of regular expression numbers, mobile phone numbers, QQ numbers, and URLs 1. verify that it is an integer of 1 functionisNumber ($ val) 2 {3if (ereg (^ [0-9] + $, $ val) 4 returntrue; 5 returnfalse; 6 PHP regular expression

Validity verification of numbers, mobile phone numbers, QQ numbers, and Url addresses

1. verify whether it is an integer

1 function isNumber($val)2     {3             if(ereg("^[0-9]+$", $val))4                 return true;5             return false;6      }

2. verify whether the mobile phone number is used

1 function isPhone($val){2             3           if (ereg("^1[1-9][0-9]{9}$",$val))4           return true;5         return false;6     7           8     }

3. verify if it is a valid QQ number

1 function isQQ($val){2             3           if (ereg("^[1-9][0-9]{4,12}$",$val))4           return true;5         return false;6     7           8     }

4. verify whether the Url address is valid

1 function isUrl ($ s) {2 return preg_match ('/^ http [s]? :\/\/'. 3' ([0-9] {1, 3 }\.) {3} [0-9] {1, 3 }'. // URL in IP format-199.194.52.184 4 '| '. // allow IP address and DOMAIN (DOMAIN name) 5' ([0-9a-z _! ~ * \ '()-] + \.) *'. // Domain name-www. 6' ([0-9a-z] [0-9a-z-] {0, 61 })? [0-9a-z] \. '. // second-level domain 7' [a-z] {2, 6 })'. // first level domain -. com or. museum 8' (: [0-9] {1, 4 })? '. // Port-: 80 9 '((\/\?) | '. // A slash isn' t required if there is no file name 10' (\/[0-9a-zA-Z _!~ \ '\ (\) \ [\] \.; \? : @ & =\+ \ $, % #-\/^ \ * \ |] *)? $/', 11 $ s) = 1; 12}

The usage is simple, such as verifying whether the mobile phone number is valid:

$val='15093691582';isPhone($val);