我在php中有一个字符串，我从请求中获取（事实上，它是来自CKEDITOR WYSIWYG文本编辑器的字符串），我试图在其他标记中插入标记（div）（{{ 1}}）并且还从p＆gt;获取数据属性。 p之前。
最好通过这个例子来理解：
div在这里，第一个和最后一个$String =
<p>
<div class="ST" data-start="1" data-end="5">
<span>Blabla1 </span><span>Blabla2</span>
</div>
</p>
<p>
Blabla3 Blabla4
</p>
<p>
<div class="ST" data-start="6" data-end="10">
<span>Blabla10 </span><span>Blabla20</span>
</div>
</p>
都可以！但我想要的是第二个<p>。
我需要在<p>中添加“Blabla3 Blabla4”，其中<div class="ST">和data-start属性来自之前的data-end（此处<div>和data-start = 0并最终得到这个：
data-end = 5字符串也可以是这样的（开头是<p>
<div class="ST" data-start="1" data-end="5">
<span>Blabla1 </span><span>Blabla2</span>
</div>
</p>
<p>
<div class="ST" data-start="1" data-end="5">
Blabla3 Blabla4
</div>
</p>
<p>
<div class="ST" data-start="6" data-end="10">
<span>Blabla10 </span><span>Blabla20</span>
</div>
</p>
）在这种情况下，将<p>和data-start放到data-end：
0或者像这样（有两个或更多<p>
Blabla3 Blabla4
</p>
<p>
<div data-start="0" data-end="5">
<span>Blabla1 </span><span>Blabla2</span>
</div>
</p>
<p>
<div data-start="6" data-end="10">
<span>Blabla10 </span><span>Blabla20</span>
</div>
</p>
）在这种情况下，<p>和data-start同时放入data-end和1，如上所述：
5我不知道如何操纵字符串......可能正在使用正则表达式吗？
感谢您的帮助！
编辑1
我试过了：
<p>
<div data-start="1" data-end="5">
<span>Blabla1 </span><span>Blabla2</span>
</div>
</p>
<p>
Blabla3 Blabla4
</p>
<p>
Blabla5 Blabla6
</p>
<p>
<div data-start="6" data-end="10">
<span>Blabla10 </span><span>Blabla20</span>
</div>
</p>
=
$value我的代码（我正在使用symfony2和Transformer）：
string
'<p><show class="st" data-time-end="1.25" data-time-moy="0.12125" data-time-start="0.28" id="1"><word class="word" data-time-end="1.25" data-time-start="0.28">TEST1 </word><word class="word" data-time-end="1.25" data-time-start="1.25"> </word></show><show class="st" data-time-end="1.25" data-time-moy="0.13857142857143" data-time-start="0.28" id="11"><word class="word" data-time-end="1.25" data-time-start="0.28">TEST2. </word><word class="word" data-time-end="1.25" data-time-start="1.25"> </word></show><show class="st" data-time-end="1.25" data-time-moy="0.194" data-time-start="0.28" id="12"><word class="word" data-time-end="1.444" data-time-start="0.28">TEST3 </word></show></p>
<p>TESTTTT</p>' (length=709)
这是我的var_dumps： 1 / 的var_dump（$ DOM）;
public function reverseTransform($value)
{
$value_purified = strip_tags($value, '<p><show><strong><span><word><em><u>'); // Allow just tags bellow
// Create a DOM with $value
$dom = new DOMDocument();
$dom->preserveWhiteSpace = false;
$dom->formatOutput = true;
libxml_use_internal_errors(true); // autorise les balises non conforme html5
$dom->loadHTML($value_purified); // Charge le string $value dans le DOM $dom
libxml_use_internal_errors(false); // refuse les balises non conforme html5
var_dump($dom);
$pTags = $dom->getElementsByTagName('p');
var_dump($pTags);
foreach ($pTags as $pTag) {
var_dump($pTag);
$valuePTagFull = $this->DOMinnerHTML($pTag);
if (strpos($valuePTagFull,'<show') === false) {
$valuePTagFull = "<show class='st'>".$valuePTagFull."</show>";
}
var_dump($valuePTagFull);
}
$value_purified = strip_tags($value, '<show><strong><span><word><em><u>'); // Allow tags bellow (delete the <p> tag)
var_dump($value_purified);
}
private function DOMinnerHTML(DOMNode $element)
{
$innerHTML = "";
$children = $element->childNodes;
foreach ($children as $child) {
$innerHTML .= $element->ownerDocument->saveHTML($child);
}
return $innerHTML;
}
2 /这里没关系，因为在我的字符串中我有2个object(DOMDocument)[1000]
public 'doctype' => string '(object value omitted)' (length=22)
public 'implementation' => string '(object value omitted)' (length=22)
public 'documentElement' => string '(object value omitted)' (length=22)
public 'actualEncoding' => null
public 'encoding' => null
public 'xmlEncoding' => null
public 'standalone' => boolean true
public 'xmlStandalone' => boolean true
public 'version' => null
public 'xmlVersion' => null
public 'strictErrorChecking' => boolean true
public 'documentURI' => null
public 'config' => null
public 'formatOutput' => boolean true
public 'validateOnParse' => boolean false
public 'resolveExternals' => boolean false
public 'preserveWhiteSpace' => boolean false
public 'recover' => boolean false
public 'substituteEntities' => boolean false
public 'nodeName' => string '#document' (length=9)
public 'nodeValue' => null
public 'nodeType' => int 13
public 'parentNode' => null
public 'childNodes' => string '(object value omitted)' (length=22)
public 'firstChild' => string '(object value omitted)' (length=22)
public 'lastChild' => string '(object value omitted)' (length=22)
public 'previousSibling' => null
public 'attributes' => null
public 'ownerDocument' => null
public 'namespaceURI' => null
public 'prefix' => string '' (length=0)
public 'localName' => null
public 'baseURI' => null
public 'textContent' => string 'TEST1 TEST2. TEST3 TESTTTT' (length=32)
标记，而<p>则返回var_dump(pTags)
int2 3 /这里我们可以看到带有var_dump(pTags);
object(DOMNodeList)[1001]
public 'length' => int 2
<p>个标签
var_dump($pTag); 4 /此处，如果var_dump($pTag);
object(DOMElement)[1040]
public 'tagName' => string 'p' (length=1)
public 'schemaTypeInfo' => null
public 'nodeName' => string 'p' (length=1)
public 'nodeValue' => string 'TEST1 TEST2. TEST3 ' (length=21)
public 'nodeType' => int 1
public 'parentNode' => string '(object value omitted)' (length=22)
public 'childNodes' => string '(object value omitted)' (length=22)
public 'firstChild' => string '(object value omitted)' (length=22)
public 'lastChild' => string '(object value omitted)' (length=22)
public 'previousSibling' => null
public 'nextSibling' => string '(object value omitted)' (length=22)
public 'attributes' => string '(object value omitted)' (length=22)
public 'ownerDocument' => string '(object value omitted)' (length=22)
public 'namespaceURI' => null
public 'prefix' => string '' (length=0)
public 'localName' => string 'p' (length=1)
public 'baseURI' => null
public 'textContent' => string 'TEST1 TEST2. TEST3 ' (length=21)
object(DOMElement)[1062]
public 'tagName' => string 'p' (length=1)
public 'schemaTypeInfo' => null
public 'nodeName' => string 'p' (length=1)
public 'nodeValue' => string 'TESTTTT' (length=7)
public 'nodeType' => int 1
public 'parentNode' => string '(object value omitted)' (length=22)
public 'childNodes' => string '(object value omitted)' (length=22)
public 'firstChild' => string '(object value omitted)' (length=22)
public 'lastChild' => string '(object value omitted)' (length=22)
public 'previousSibling' => string '(object value omitted)' (length=22)
public 'attributes' => string '(object value omitted)' (length=22)
public 'ownerDocument' => string '(object value omitted)' (length=22)
public 'namespaceURI' => null
public 'prefix' => string '' (length=0)
public 'localName' => string 'p' (length=1)
public 'baseURI' => null
public 'textContent' => string 'TESTTTT' (length=7)
标记没有<p>标记，我会在<show>标记中添加<show>标记。它适用于我的第二个<p>标记，其中initialy没有<p>标记：
<show>var_dump($valuePTagFull);
string '<show class='st'>TESTTTT</show>' (length=31)
时，他告诉我：
var_dump($value_purified);为什么最后'TESTTT'这个词不在string '<show class="st" data-time-end="1.25" data-time-moy="0.12125" data-time-start="0.28" id="1"><word class="word" data-time-end="1.25" data-time-start="0.28">TEST1 </word><word class="word" data-time-end="1.25" data-time-start="1.25"> </word></show><show class="st" data-time-end="1.25" data-time-moy="0.13857142857143" data-time-start="0.28" id="11"><word class="word" data-time-end="1.25" data-time-start="0.28">TEST2. </word><word class="word" data-time-end="1.25" data-time-start="1.25"> </word></show><show class="st" data-time-end="1.25" data-time-moy="0.194" data-time-start="0.28" id="12"><word class="word" data-time-end="1.444" data-time-start="0.28">TEST3 </word></show>
TESTTTT' (length=695)
标签之间？而在<show>中，var_dump($valuePTagFull);标签位于......？
答案 0 :(得分：1)
这是一个操作DOMDocument以获得所需结果的解决方案。有关详细信息，请参阅注释：
class foo
{
public function reverseTransform($value)
{
$dom = new DOMDocument();
$dom->preserveWhiteSpace = false;
$dom->formatOutput = true;
// Load contents wrapped in a temporary root node
$dom->loadXML('<root>' . $value . '</root>');
// Use an XPath query to get all P elements
$xPath = new DOMXPath($dom);
$pTags = $xPath->query('//p');
// Loop through the P elements
$dataStart = 0;
$dataEnd = 0;
foreach ($pTags as $pTag) {
// Get any DIV elements inside the P
$divs = $xPath->query('./div', $pTag);
if ($divs->length > 0) {
// This P element already has a div. Grab the
// data-start/end attributes for later
$div = $divs->item(0);
$dataStart = $div->getAttribute('data-start');
$dataEnd = $div->getAttribute('data-end');
}
else {
// Create a new DIV element and set attributes
$div = $dom->createElement('div');
$div->setAttribute('class', 'ST');
$div->setAttribute('data-start', $dataStart);
$div->setAttribute('data-end', $dataEnd);
// Move all children of P into DIV
$child = $pTag->firstChild;
while ($child) {
$nextChild = $child->nextSibling;
$div->insertBefore($child);
$child = $nextChild;
}
// Move the DIV inside the P element
$pTag->appendChild($div);
}
}
// Get HTML, removing temporary root element
$html = preg_replace(
'#.*?<root>\s*(.*)\s*</root>#s', '\1',
$dom->saveXML()
);
return $html;
}
}
$string = <<<EOS
<p>
Blabla1 Blabla2
</p>
<p>
<div data-start="1" data-end="5">
<span>Blabla3 </span><span>Blabla4</span>
</div>
</p>
<p>
Blabla5 Blabla6
</p>
<p>
Blabla7 Blabla8
</p>
<p>
<div data-start="6" data-end="10">
<span>Blabla9 </span><span>Blabla10</span>
</div>
</p>
<p>
Blabla11 Blabla12
</p>
EOS;
echo (new foo)->reverseTransform($string), PHP_EOL;
输出（为清晰起见缩进）：
<p>
<div class="ST" data-start="0" data-end="0">
Blabla1 Blabla2
</div>
</p>
<p>
<div data-start="1" data-end="5">
<span>Blabla3 </span>
<span>Blabla4</span>
</div>
</p>
<p>
<div class="ST" data-start="1" data-end="5">
Blabla5 Blabla6
</div>
</p>
<p>
<div class="ST" data-start="1" data-end="5">
Blabla7 Blabla8
</div>
</p>
<p>
<div data-start="6" data-end="10">
<span>Blabla9 </span>
<span>Blabla10</span>
</div>
</p>
<p>
<div class="ST" data-start="6" data-end="10">
Blabla11 Blabla12
</div>
</p>
答案 1 :(得分：0)
如果它是有效的html，您可以使用loadHTML函数并更快地操纵字符串：http://php.net/manual/en/domdocument.loadhtml.php