我有一堆字符串连接在一起成为一个包含文本和链接的字符串。我想在字符串中找到 URL,并希望将它们放入href
每个 URL(创建一个链接)。我正在使用正则表达式模式来查找字符串中的 URL(链接)。检查下面的示例:
例子 :
<?php
// The Text you want to filter for urls
$text = "The text you want to filter goes here. http://google.com/abc/pqr
2The text you want to filter goes here. http://google.in/abc/pqr
3The text you want to filter goes here. http://google.org/abc/pqr
4The text you want to filter goes here. http://www.google.de/abc/pqr";
// The Regular Expression filter
$reg_exUrl = "/(http|https|ftp|ftps)\:\/\/[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(\/\S*)?/";
// Check if there is a url in the text
if (preg_match($reg_exUrl, $text, $url)) {
// make the urls hyper links
echo preg_replace($reg_exUrl, "<a href='.$url[0].'>" . $url[0] . "</a> ", $text);
} else {
// if no urls in the text just return the text
echo $text . "<br/>";
}
?>
但它显示以下输出:
> The text you want to filter goes here. **http://google.com/abc/pqr** 2The
> text you want to filter goes here. **http://google.com/abc/pqr** 3The text
> you want to filter goes here. **http://google.com/abc/pqr** 4The text you
> want to filter goes here. **http://google.com/abc/pqr**
这有什么问题?