php - DomDocument验证错误格式

Question

我已经经历了大约10个其他线程，但没有看到有关此实际问题的任何信息。我所期望的错误，但我希望能够输出它给出的错误。我知道我可以通过将条件更改为if(@$sxml->validate()) {来抑制这些错误，但是我没有得到所需的错误。

$sxml = new DOMDocument;
$sxml->preserveWhiteSpace = false;
$sxml->formatOutput = true;
$sxml->Load($file . '.xml');
if($sxml->validate()) {
     //doesn't matter it's valid
} else {
    libxml_use_internal_errors(true);
    $errors = libxml_get_errors();
    if(!empty($errors)) {
        foreach($errors as $error) {
            echo $error . '<br />';
        }
    }
    libxml_clear_errors();
}

这给了我

Warning: DOMDocument::validate(): Element test content does not follow the DTD, expecting (this) got (that) Warning: DOMDocument::validate(): Element test content does not follow the DTD, expecting (this) got (that)Warning: DOMDocument::validate(): Element test content does not follow the DTD, expecting (this) got (that)Warning: DOMDocument::validate(): Element test content does not follow the DTD, expecting (this) got (that)

有没有办法遍历每个错误并分别输出呢？ else中的任何内容都不会输出所有来自$sxml->validate()调用的内容。

例如

1. Warning: DOMDocument::validate(): Element test content does not follow the DTD, expecting (this) got (that)
2. Warning: DOMDocument::validate(): Element test content does not follow the DTD, expecting (this) got (that)
3. Warning: DOMDocument::validate(): Element test content does not follow the DTD, expecting (this) got (that)
4. Warning: DOMDocument::validate(): Element test content does not follow the DTD, expecting (this) got (that)

Answer 1

请参阅DOMDocument::validate的PHP手册中schaffhirt的注释。它包含一个确实可以做到这一点的类:

<?php
    class MyDOMDocument {
        private $_delegate;
        private $_validationErrors;

        public function __construct (DOMDocument $pDocument) {
            $this->_delegate = $pDocument;
            $this->_validationErrors = array();
        }

        public function __call ($pMethodName, $pArgs) {
            if ($pMethodName == "validate") {
                $eh = set_error_handler(array($this, "onValidateError"));
                $rv = $this->_delegate->validate();
                if ($eh) {
                    set_error_handler($eh);
                }
                return $rv;
            }
            else {
                return call_user_func_array(array($this->_delegate, $pMethodName), $pArgs);
            }
        }
        public function __get ($pMemberName) {
            if ($pMemberName == "errors") {
                return $this->_validationErrors;
            }
            else {
                return $this->_delegate->$pMemberName;
            }
        }
        public function __set ($pMemberName, $pValue) {
            $this->_delegate->$pMemberName = $pValue;
        }
        public function onValidateError ($pNo, $pString, $pFile = null, $pLine = null, $pContext = null) {
            $this->_validationErrors[] = preg_replace("/^.+: */", "", $pString);
        }
    }
?>

<?php
    // $doc is a DOMDocument object
    $myDoc = new MyDOMDocument($doc); // copy constructor

    // do anything with $myDoc that you would with $doc

    $isValid = $myDoc->validate(); // won't create warnings
    if (!$isValid) {
        print_r($myDoc->errors); // the array all warnings are collected in
    }
?>