检查文字是否包含网址 [英] Check if text contains URL

问题描述

如何检查PHP中的文本中是否包含链接? 我的数据库表格式如下.

How can I check if text in PHP contains a link in it's text? I have a database table format as follow.

+------------------+
| id | posts | tag |
+------------------+
| 1  | text 1|  0  | //no links
| 2  | text 2|  1  | //contains links

基本上，我想验证提交的条目是否包含链接，如果确实存在， tag列的值为1.

Basically, I want to verify that the submitted entry contains a link, if it does, the tag column will have a value of 1.

有人可以帮助我正确编码上述示例吗?当前这是我的PHP:

Can someone help me to properly code the above sample? Currently this is my PHP:

include 'function.php';

$text= $_POST['text'];

//if $text contains a url then do this function 
postEntryWithUrl($text);

//else here 
postEntry($text);

推荐答案

您可以使用stristr()

$has_link = stristr($string, 'http://') ?: stristr($string, 'https://');

http://php.net/manual/en/function.stristr.php

或preg_match()

preg_match('/(http|ftp|mailto)/', $string, $matches);
var_dump($matches);

https://www.php.net/manual/zh/function.preg-match.php

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