php 验证email

filter_var
(PHP 5 >= 5.2.0)

filter_var — Filters a variable with a specified filter

Report a bug 说明
mixed filter_var ( mixed $variable [, int $filter = FILTER_DEFAULT [, mixed $options ]] )
filter_var — Filters a variable with a specified filter

var_dump(filter_var('bob@example.com', FILTER_VALIDATE_EMAIL));
var_dump(filter_var('http://example.com', FILTER_VALIDATE_URL, FILTER_FLAG_PATH_REQUIRED));
?>