采集邮箱的php代码(抓取网页中的邮箱地址)

<?php
$url=http://www.jb51.net; //这个网页里绝对含有邮件地址 。
$content=file_get_contents($url);
//echo $content;
function getEmail($str) {
    //$pattern = "/([a-z0-9]*[-_\.]?[a-z0-9]+)*@([a-z0-9]*[-_]?[a-z0-9]+)+[\.][a-z]{2,3}([\.][a-z]{2})?/i";
    $pattern = "/([a-z0-9\-_\.]+@[a-z0-9]+\.[a-z0-9\-_\.]+)/";
    preg_match_all($pattern,$str,$emailArr);
    
    return $emailArr[0];
}
print_r( getEmail($content));
?>