从URL创建Img标记 [英] Create Img tag from URL
本文介绍了从URL创建Img标记的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我想要的是什么
如果字符串中的网址包含 .jpg 在 URL的末尾（不是字符串）然后它应该使用 preg_replace 否则建立正常链接。
If the URL in the string contains a .jpg at the end of the URL (not the string) then it should make an image from it with preg_replace else make a normal link.
所以例如：
如果我有 http://www.example.com/images/photo.jpg 然后它应替换为：
If I have http://www.example.com/images/photo.jpg then it should replace with:
< img src =http://www.example.com/images/photo.jpgalt =http://www.example.com/images/photo.jpg>
问题：
URL以任何方式替换为链接，我的正则表达式无效:(。
The URL is replaced with a link in any way and my regex isn't working :( .
我尝试过的方法：
$content = preg_replace("/(http:\/\/[^\s]+(?=\.jpg))/i","<img src=\"$1\" alt = \"$1\"></img>",$content);
$content = nl2br(preg_replace("/(http:\/\/[^\s]+(?!\.jpg))/m", "<a href=\"$1\" rel=\"nofollow\" target=\"blank\" title=\"$1\" class=\"news-link\">$1</a>", $content));
推荐答案
试试这个
function replace_links($content)
{
if (preg_match('#(http://[^\s]+(?=\.(jpe?g|png|gif)))#i', $content))
{
$content = preg_replace('#(http://[^\s]+(?=\.(jpe?g|png|gif)))(\.(jpe?g|png|gif))#i', '<img src="$1.$2" alt="$1.$2" />', $content);
}
else
{
$content = preg_replace('#(http://[^\s]+(?!\.(jpe?g|png|gif)))#i', '<a href="$1" rel="nofollow" target="blank" title="$1" class="news-link">$1</a>', $content);
}
return $content;
}
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