PHP parse_url 一个好用的函数

PHP 2018-12-30

举例子如下:
<div class="codetitle"><a style="CURSOR: pointer" data="52332" class="copybut" id="copybut52332" onclick="doCopy('code52332')"> 代码如下:

<div class="codebody" id="code52332">
$url = "http://www.electrictool Box.com/PHP-extract-domain-from-full-url/";
$parts = parse_url($url);

输出:
<div class="codetitle"><a style="CURSOR: pointer" data="44046" class="copybut" id="copybut44046" onclick="doCopy('code44046')"> 代码如下:

<div class="codebody" id="code44046">
Array
(
[scheme] => http
[host] => www.electrictoolBox.com
[path] => /PHP-extract-domain-from-full-url/
)

又如:
<div class="codetitle"><a style="CURSOR: pointer" data="22020" class="copybut" id="copybut22020" onclick="doCopy('code22020')"> 代码如下:

<div class="codebody" id="code22020">
<?PHP
$url = 'http://username:password@hostname/path?arg=value#anchor';
print_r(parse_url($url));
echo parse_url($url,PHP_URL_PATH);
?>

输出:
<div class="codetitle"><a style="CURSOR: pointer" data="61541" class="copybut" id="copybut61541" onclick="doCopy('code61541')"> 代码如下:<div class="codebody" id="code61541">
Array
(
[scheme] => http
[host] => hostname
[user] => username
[pass] => password
[path] => /path
[query] => arg=value
[fragment] => anchor
)

可以看到,可以很容易分解出一个URL的各个部,那如果要拿指定的部分出来的话也很容易,如
echo parse_url($url,PHP_URL_PATH);
就是在第二个参数中,设定如下的参数:
PHP_URL_SCHEME,PHP_URL_HOST,PHP_URL_PORT,PHP_URL_USER,PHP_URL_PASS,PHP_URL_PATH,PHP_URL_QUERY or PHP_URL_FRAGMENT.

parse_url PHP

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