看看我这个要求能不能用正则表达式和替换函数实现

Question

上午你就发了的阿...// 自动识别URL
function parseurl($content) {
return preg_replace( array(
"/(?<=[^\]A-Za-z0-9-=\"'\\/])(https?|ftp|gopher|news|telnet|mms){1}:\/\/([A-Za-z0-9\/\-_+=.~!%@?#%&;:$\\()|]+)/is",
"/([\n\s])www\.([a-z0-9\-]+)\.([A-Za-z0-9\/\-_+=.~!%@?#%&;:$\[\]\\()|]+)((?:[^\x7f-\xff,\s]*)?)/is",
"/(?<=[^\]A-Za-z0-9\/\-_.~?=:.])([_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*(\.[a-zA-Z]{2,4}))/si"
), array(
"\\1://\\2",
"\\1www.\\2.\\3\\4",
"\\0"
), ' '.$content);
}