php实现使用正则将文本中的网址转换成链接标签_php技巧
| 复制代码 代码如下: function text2links($str='') { if($str=='' or !preg_match('/(http|www/.|@)/i', $str)) { return $str; } $lines = explode("/n", $str); $new_text = ''; while (list($k,$l) = each($lines)) { // replace links: $l = preg_replace("/([ /t]|^)www/./i", "//1http://www.", $l); $l = preg_replace("/([ /t]|^)ftp/./i", "//1ftp://ftp.", $l); $l = preg_replace("/(http:////[^ )/r/n!]+)/i", "<a href=/"//1/">//1</a>", $l); $l = preg_replace("/(https:////[^ )/r/n!]+)/i", "<a href=/"//1/">//1</a>", $l); $l = preg_replace("/(ftp:////[^ )/r/n!]+)/i", "<a href=/"//1/">//1</a>", $l); $l = preg_replace( "/([-a-z0-9_]+(/.[_a-z0-9-]+)*@([a-z0-9-]+(/.[a-z0-9-]+)+))/i", "<a href=/"mailto://1/">//1</a>", $l); $new_text .= $l."/n"; } return $new_text; } |