使用preg_match_all查找电子邮件

Question

I have this code to find email addresses in given text:

preg_match_all("|[a-zA-Z0-9-_.]+@[a-zA-Z0-9-]+.[a-zA-Z]+|",
"</b>a@bexample </b> [e-mail] ",$out, PREG_PATTERN_ORDER);

And the output is like this:

   Array
       (
       [0] => Array
           (
                [0] => a@bexample//error one
                [1] => [e-mail]
           )

   )

the first answer isn't true. why?

Answer 1

I forgot the "\" before "." it should be like this

"|[a-zA-Z0-9-_.]+@[a-zA-Z0-9-]+\.[a-zA-Z]+|"