array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'zh', ), 'this' => array ( 0 => 'uri-whatwg-url.getport.php', 1 => 'Uri\\WhatWg\\Url::getPort', 2 => 'Retrieve the port component', ), 'up' => array ( 0 => 'class.uri-whatwg-url.php', 1 => 'Uri\\WhatWg\\Url', ), 'prev' => array ( 0 => 'uri-whatwg-url.getpath.php', 1 => 'Uri\\WhatWg\\Url::getPath', ), 'next' => array ( 0 => 'uri-whatwg-url.getquery.php', 1 => 'Uri\\WhatWg\\Url::getQuery', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/uri/uri/whatwg/url/getport.xml', ), 'history' => array ( ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); contributors($setup); ?>

Uri\WhatWg\Url::getPort

(PHP 8 >= 8.5.0)

Uri\WhatWg\Url::getPortRetrieve the port component

说明

public Uri\WhatWg\Url::getPort(): ?int

Retrieves the port component.

参数

此函数没有参数。

返回值

Returns the port component as an int if the port component exists, null is returned otherwise.

示例

示例 #1 Uri\WhatWg\Url::getPort() basic example

<?php
$url
= new \Uri\WhatWg\Url("https://example.com:443");

echo
$url->getPort();
?>

以上示例会输出:

443

参见