DOMDocument::validate

(PHP 5, PHP 7, PHP 8)

DOMDocument::validate — Validates the document based on its DTD

说明

public DOMDocument::validate(): bool

Validates the document based on its DTD.

You can also use the validateOnParse property of DOMDocument to make a DTD validation.

参数

此函数没有参数。

返回值

成功时返回 true， 或者在失败时返回 false。 If the document has no DTD attached, this method will return false.

示例

示例 #1 Example of DTD validation

<?php
$dom = new DOMDocument;
$dom->load('examples/book.xml');
if ($dom->validate()) {
echo "This document is valid!\n";
}
?>

You can also validate your XML file while loading it:

<?php
$dom = new DOMDocument;
$dom->validateOnParse = true;
$dom->load('examples/book.xml');
?>

参见