Question

我的源字符串可能是：

example.com或http://example.com或www.example.com或https://example.com或http://www.example.com或https://www.example.com 或

example.abc.com或http://example.abc.com或www.example.abc.com或https://example.abc.com或http://www.example.abc.com或https://www.example.abc.com

我想要结果：示例

我们怎样才能使用php字符串函数？或以其他方式？

Answer 1

试试这个

$str = 'http://example.abc.com';
$last = explode("/", $str, 3);

$ans = explode('.',$last[2]);
echo $ans[0];

Answer 2

您可以使用parse_url

<?php
    // Real full current URL, this can be useful for a lot of things
    $url = 'http'.((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') ? 's' : '').'://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
    // Or you can put another url
    $url = 'https://www.example.foo.biz/';
    // Get the host name
    $hostName = parse_url($url, PHP_URL_HOST);
    // Get the first part of the host name
    $host = substr($hostName, 0, strpos($hostName, '.'));

    print_r($url);
    print_r($hostName);
    // Here is what you want
    print_r($host);

?>

Answer 3

您可以使用strpos：

<?php

$url = "http://www.example.com";

/* Use any of you want.
$url = "https://example.com";
$url = "https://www.example.abc.com";
$url = "https://www.www.example.com"; */

if ($found = strpos($url,'example') !== false) {


  echo "it exists";

}
?>

修改

所以这就是我现在所使用的explode和substr：

$url = "http://www.example.com"; /* Use any of you want. $url = "https://example.com"; $url = "https://www.example.abc.com"; $url = "https://www.www.example.com"; */ $exp ='example'; if ($found = strpos($url, $exp) !== false) { echo $str = substr($url, strpos($url, $exp)); echo "<br>". "it exists" . "<br>"; $finalword = explode(".", $str); var_dump($finalword); } ?>

如何在字符串中的特定符号之间获取单词

3 个答案: