Php and javascript regular expression verification-php Tutorial

{Code ...} the frontend and backend are all ^ 1 [3 | 5 | 7 | 8d {8} $ regular. frontend verification has been performed on the backend and return is used. some people say that they say on the Internet that php's regular library is different from js. how can this problem be solved? solve the problem

if (!preg_match('[/^1[3|5|7|8][0-9]\d{8}$/', $phone)){    return "PleaseEnterYourPhoneNumber";}

Both front and back ends are/^ 1 [3 | 5 | 7 | 8d {8} $/regular
Used for front-end verification

Return in the background
Some people say that the php regular expression library is different from the js Library on the Internet.
Is there any solution?

Reply content:

if (!preg_match('[/^1[3|5|7|8][0-9]\d{8}$/', $phone)){    return "PleaseEnterYourPhoneNumber";}

Both front and back ends are/^ 1 [3 | 5 | 7 | 8d {8} $/regular
Used for front-end verification

Return in the background
Some people say that the php regular expression library is different from the js Library on the Internet.
Is there any solution?

Can't bear it...
This type of regular expression on the Internet is actually copied. if there is a problem with writing, all of them have problems. why don't you choose to read the regular expression on your own?
[0-9]And\dIt is completely equivalent. why do we need to split it[0-9]\d{8}, Directly write\d{9}No.

Therefore, the regular expression is changed/^1[3|5|7|8]\d{9}$/Right!
(The one at the beginning of your code[It must have been copied more or mistakenly input)

As for your problem, refer to the following two sections of code, which are equivalent in effect:

PHP:

$ Re = '/^ 1 [3 | 5 | 7 | 8] \ d {9} $/'; $ str = '000000'; if (preg_match ($ re, $ str) {echo 'verification passed ';} else {echo 'verification failed ';}

Javascript:

Var re =/^ 1 [3 | 5 | 7 | 8] \ d {9} $/; var str = '123'; if (re. test (str) {console. log ('verified pass');} else {console. log ('verification failed ');}

// Assume that the name of a form in the foreground is phone $ phone =$ _ POST ['phone']; if ($ phone! = '[/^ 1 [3 | 5 | 7 | 8] [0-9] \ d {8 }$/') {return "PleaseEnterYourPhoneNumber ";}