网上信息泛滥，大量作SEO黑链接的在一些评论贴子经常含有垃圾链接，用这个方法可以过滤掉外链URL
$string = preg_replace('/\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|$!:,.;]*[A-Z0-9+&@#\/%=~_|$]/i', '', $string);
以上就是PHP 删除内容中的链接地址的内容，更多相关内容请关注PHP中文网（www.php.cn）！
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