Modify the host component

# Uri\WhatWg\Url::withHost

(PHP 8 >= 8.5.0)

Uri\WhatWg\Url::withHost — Modify the host component

### 说明

public function Uri\WhatWg\Url::withHost(?string `$host`): static

Creates a new URL and modifies its host component.

### 参数

`host`
  New host component.

### 返回值

The modified Uri\WhatWg\Url instance.

### 错误／异常

If the resulting URL is invalid, a Uri\WhatWg\InvalidUrlException is thrown.

### 示例

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

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

    echo $url->getAsciiHost();
    ?>

以上示例会输出：

    example.net

### 参见

- Uri\WhatWg\Url::getAsciiHost() - Retrieve the host component as an ASCII string
- Uri\WhatWg\Url::getUnicodeHost() - Retrieve the host component as an Unicode string
- Uri\Rfc3986\Uri::withHost() - Modify the host component

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