Creates an XMLReader from an XML string

# XMLReader::fromString

(PHP 8 >= 8.4.0)

XMLReader::fromString — Creates an XMLReader from an XML string

### 说明

public static function XMLReader::fromString(string `$source`, ?string `$encoding` = `null`, int `$flags` = 0): static

Creates an XMLReader from an XML string.

### 参数

`source`

  String containing the XML to be parsed.

`encoding`

  The document encoding or `null`.

`flags`

  A bitmask of the LIBXML_* constants.

### 返回值

Returns an XMLReader.

### 错误／异常

- Passing an invalid `encoding` will throw a ValueError.

### 参见

- XMLReader::fromStream() - Creates an XMLReader from a stream to read from
- XMLReader::fromUri() - Creates an XMLReader from a URI to read from

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