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(PHP 8 >= 8.5.0)
Uri\WhatWg\Url::getPort — Retrieve the port component
此函数没有参数。
示例 #1 Uri\WhatWg\Url::getPort() basic example
<?php
$url = new \Uri\WhatWg\Url("https://example.com:8080");
var_dump($url->getPort());
// 443 is the default port for https, so it is not stored.
$url = new \Uri\WhatWg\Url("https://example.com:443");
var_dump($url->getPort());
?>以上示例会输出：
int(8080) NULL
