Load XML from a string

# DOMDocument::loadXML

(PHP 5, PHP 7, PHP 8)

DOMDocument::loadXML — Load XML from a string

### 说明

public function DOMDocument::loadXML(string `$source`, int `$options` = 0): bool

Loads an XML document from a string.

### 参数

`source`

  The string containing the XML.

`options`

  Bitwise `OR` of the libxml option constants.

### 返回值

成功时返回 `true`， 或者在失败时返回 `false`。

### 错误／异常

If an empty string is passed as the `source`, a warning will be generated. This warning is not generated by libxml and cannot be handled using libxml's error handling functions.

### 更新日志

版本 | 说明
--- | ---
8.3.0 | This function now has a tentative bool return type.
8.0.0 | Calling this function statically will now throw an Error. Previously, an `E_DEPRECATED` was raised.

### 示例

示例 #1 Creating a Document

    <?php
    $doc = new DOMDocument();
    $doc->loadXML('<root><node/></root>');
    echo $doc->saveXML();
    ?>

### 参见

- DOMDocument::load() - Load XML from a file
- DOMDocument::save() - Dumps the internal XML tree back into a file
- DOMDocument::saveXML() - Dumps the internal XML tree back into a string

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