PHP：STR 替换为链接

我有这个 PHP 聊天框。

如果我在聊天框中键入链接，它不会将其显示为链接。

我如何使用 STR 替换来执行此操作？

它应该响应诸如“http”“http://”“.com”“.nl”“www”“www”之类的内容。 ....

我的其他 STR 替换行如下所示：

$bericht = str_replace ("STRING1","STRINGREPLACEMENT1",$bericht);

Someone?

嘿！试试这个代码（在 php.net 某处找到）：

function format_urldetect( $text )
{

  $tag = " rel=\"nofollow\"";
  //
  // First, look for strings beginning with http:// that AREN't preceded by an <a href tag
  //
  $text = preg_replace( "/(?<!<a href=(\"|'))((http|ftp|http)+(s)?:\/\/[^<>\s]+[\w])/i", "<a target=\"_new\" class=\"httplink\" href=\"\\0\"" . $tag . ">\\0</a>", $text );
  //
  // Second, look for strings with casual urls (www.something.com...) and make sure they don't have a href tag OR a http:// in front,
  // since that would have been caught in the previous step.
  //
  $text = preg_replace( "/(?<!<a href=(\"|')http:\/\/)(?<!http:\/\/)((www)\.[^<>\s]+[\w])/i", "<a target=\"_new\" class=\"httplink\" href=\"http://\\0\"" . $tag . ">\\0</a>", $te
xt );
  $text = preg_replace( "/(?<!<a href=(\"|')https:\/\/)(?<!http:\/\/)((www)\.[^<>\s]+[\w])/i", "<a target=\"_new\" class=\"httplink\" href=\"http://\\0\"" . $tag . ">\\0</a>", $t
ext );
  return $text;
}

嗯，破损的缩进。尝试这个http://triop.se/code.txt http://triop.se/code.txt