js and php email address verification_PHP tutorial

There are many ways to verify your email address. On the browser side, js email verification can be detected through regular expressions.

For example: source code

/^((([a-z]|d|[!#$%&'*+-/=?^_`{|}~]|[u00A0 -uD7FFuF900-uFDCFuFDF0-uFFEF])+(.([a-z]|d|[!#$%&'*+-/=?^_`{|}~]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF]) +)*)|((x22)((((x20|x09)*(x0dx0a))?(x20|x09)+)?(([x01-x08x0bx0cx0e-x1fx7f]|x21|[x23-x5b]|[ x5d-x7e]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])|(\([x01-x09x0bx0cx0d-x7f]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF]))))*(((x20|x09)*( x0dx0a))?(x20|x09)+)?(x22)))@((([a-z]|d|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])|(([a-z]|d|[u00A0-uD7FFuF900 -uFDCFuFDF0-uFFEF])([a-z]|d|-|.|_|~|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])*([a-z]|d|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])) ).)+(([a-z]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])|(([a-z]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])([a-z]|d|-|.|_| ~|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])*([a-z]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])))$/ } View Code

The call is very simple:

(isEmail('youremail@yourdomain.com')){ console. log('This is email is valid'); } View Code

If it is server-side verification. Like php, the simplest one is:

isEmail( filter_var(, } View Code

But this matter can also be complicated.

Like this one. He established a complete system of email address verification websites. I guess few people do this.

To be honest, I have to admire it.

http://www.bkjia.com/PHPjc/675208.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/675208.htmlTechArticleThere are many ways to verify email addresses. On the browser side, js email verification can be detected through regular expressions. For example: source code/^((([a-z]|d|[!#$%'*+-/=?^_`{|}~]|[u00A0-uD7FFuF9...