Question

我有一个像这样的字符串：

$string = "some text
  http://dvz.local/index/index/regionId/28
        http://stuff.kiev.ua/roadmap_page.php http://192.168.3.192/roadmap_page.php
         http://192.168.3.192/roadmap_page.php#qwe";

需要获取所有链接。

我试过这种方式：/http:\/\/(.*)[|\s]?/

返回：

array(2) {
  [0] =>
  array(3) {
    [0] =>
    string(42) "http://dvz.local/index/index/regionId/28\r\n"
    [1] =>
    string(77) "http://stuff.kiev.ua/roadmap_page.php http://192.168.3.192/roadmap_page.php\r\n"
    [2] =>
    string(41) "http://192.168.3.192/roadmap_page.php#qwe"
  }
  [1] =>
  array(3) {
    [0] =>
    string(34) "dvz.local/index/index/regionId/28\r"
    [1] =>
    string(69) "stuff.kiev.ua/roadmap_page.php http://192.168.3.192/roadmap_page.php\r"
    [2] =>
    string(34) "192.168.3.192/roadmap_page.php#qwe"
  }
}

编辑1：预计有：

array(2) {
  [0] =>
  array(3) {
    [0] =>
    string(42) "http://dvz.local/index/index/regionId/28"
    [1] =>
    string(77) "http://stuff.kiev.ua/roadmap_page.php"
    [2] =>
    string(77) "http://192.168.3.192/roadmap_page.php"
    [3] =>
    string(41) "http://192.168.3.192/roadmap_page.php#qwe"
  }
  [1] =>
  array(3) {
    [0] =>
    string(34) "dvz.local/index/index/regionId/28"
    [1] =>
    string(69) "stuff.kiev.ua/roadmap_page.php"
    [2] =>
    string(69) "192.168.3.192/roadmap_page.php"
    [3] =>
    string(34) "192.168.3.192/roadmap_page.php#qwe"
  }
}

Answer 1

试试这个：

/http:\/\/([^\s]+)/

Answer 2

试试这个：

preg_match_all('|http://([^\s]*)|', $string, $matches);

var_dump($matches);

Answer 3

所有来自文本的链接

http [s]？[^ \ s] *

Answer 4

许多页面仅具有相对于主文档的相对链接（因此没有http（s）：// ...进行解析），对于以下情况，它们可以很好地被<form action="addsurvey.php" method="post"> <input type="text" name="surveyname"> <input type="text" name="question" placeholder="First Question"> <br> <input type="text" name="answer[1]" value=""> <input type="text" name="answer[2]" value=""> <input type="text" name="answer[3]" value=""> <br> <input type="submit" name="submit"> </form>属性分割：

href

或更简单：

preg_match_all('|href="([^\s]*)"><\/a>|', $html, $output_array);

示例输出：

preg_match_all('|href="(.*?)"><\/a>|', $html, $output_array);

需要preg_match_all链接

4 个答案: