Home >Backend Development >PHP Tutorial >PHP implements using regular expressions to convert URLs in text into link tags, _PHP tutorial
PHP implements using regular expressions to convert URLs in text into link tags, _PHP tutorial
- WBOYOriginal
- 2016-07-13 10:12:25798browse
php implementation uses regular expressions to convert URLs in text into link tags,
Copy code The code is as follows:
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://[^ )rn!]+)/i",
"\1", $l);
$l = preg_replace("/(https://[^ )rn!]+)/i",
"\1", $l);
$l = preg_replace("/(ftp://[^ )rn!]+)/i",
"\1", $l);
$l = preg_replace(
"/([-a-z0-9_]+(.[_a-z0-9-]+)*@([a-z0-9-]+(.[a-z0-9-]+)+) )/i",
"\1", $l);
$new_text .= $l."n";
}
Return $new_text;
}
Statement：
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Previous article：Personal understanding of regular expressions - lazy matching, regular expression matching_PHP tutorialNext article：Personal understanding of regular expressions - lazy matching, regular expression matching_PHP tutorial