PHP DOMText::getAttribute方法代码示例

 function __toString()
 {
     // Skip empty text frames
     //     if ( $this->is_text_node() &&
     //          preg_replace("/\s/", "", $this->_node->data) === "" )
     //       return "";
     $str = "<b>" . $this->_node->nodeName . ":</b><br/>";
     //$str .= spl_object_hash($this->_node) . "<br/>";
     $str .= "Id: " . $this->get_id() . "<br/>";
     $str .= "Class: " . get_class($this) . "<br/>";
     if ($this->is_text_node()) {
         $tmp = htmlspecialchars($this->_node->nodeValue);
         $str .= "<pre>'" . mb_substr($tmp, 0, 70) . (mb_strlen($tmp) > 70 ? "..." : "") . "'</pre>";
     } elseif ($css_class = $this->_node->getAttribute("class")) {
         $str .= "CSS class: '{$css_class}'<br/>";
     }
     if ($this->_parent) {
         $str .= "\nParent:" . $this->_parent->_node->nodeName . " (" . spl_object_hash($this->_parent->_node) . ") " . "<br/>";
     }
     if ($this->_prev_sibling) {
         $str .= "Prev: " . $this->_prev_sibling->_node->nodeName . " (" . spl_object_hash($this->_prev_sibling->_node) . ") " . "<br/>";
     }
     if ($this->_next_sibling) {
         $str .= "Next: " . $this->_next_sibling->_node->nodeName . " (" . spl_object_hash($this->_next_sibling->_node) . ") " . "<br/>";
     }
     $d = $this->get_decorator();
     while ($d && $d != $d->get_decorator()) {
         $str .= "Decorator: " . get_class($d) . "<br/>";
         $d = $d->get_decorator();
     }
     $str .= "Position: " . pre_r($this->_position, true);
     $str .= "\nContaining block: " . pre_r($this->_containing_block, true);
     $str .= "\nMargin width: " . pre_r($this->get_margin_width(), true);
     $str .= "\nMargin height: " . pre_r($this->get_margin_height(), true);
     $str .= "\nStyle: <pre>" . $this->_style->__toString() . "</pre>";
     if ($this->_decorator instanceof Block_Frame_Decorator) {
         $str .= "Lines:<pre>";
         foreach ($this->_decorator->get_line_boxes() as $line) {
             foreach ($line->get_frames() as $frame) {
                 if ($frame instanceof Text_Frame_Decorator) {
                     $str .= "\ntext: ";
                     $str .= "'" . htmlspecialchars($frame->get_text()) . "'";
                 } else {
                     $str .= "\nBlock: " . $frame->get_node()->nodeName . " (" . spl_object_hash($frame->get_node()) . ")";
                 }
             }
             $str .= "\ny => " . $line->y . "\n" . "w => " . $line->w . "\n" . "h => " . $line->h . "\n" . "left => " . $line->left . "\n" . "right => " . $line->right . "\n";
         }
         $str .= "</pre>";
     }
     $str .= "\n";
     if (php_sapi_name() === "cli") {
         $str = strip_tags(str_replace(array("<br/>", "<b>", "</b>"), array("\n", "", ""), $str));
     }
     return $str;
 }

 /**
  * This method attempts to return a better 'innerText' representation than DOMNode::textContent
  *
  * @param DOMElement|DOMText $el
  * @param bool $implied when parsing for implied name for h-*, rules may be slightly different
  * @see: https://github.com/glennjones/microformat-shiv/blob/dev/lib/text.js
  */
 public function innerText($el, $implied = false)
 {
     $out = '';
     $blockLevelTags = array('h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'p', 'hr', 'pre', 'table', 'address', 'article', 'aside', 'blockquote', 'caption', 'col', 'colgroup', 'dd', 'div', 'dt', 'dir', 'fieldset', 'figcaption', 'figure', 'footer', 'form', 'header', 'hgroup', 'hr', 'li', 'map', 'menu', 'nav', 'optgroup', 'option', 'section', 'tbody', 'testarea', 'tfoot', 'th', 'thead', 'tr', 'td', 'ul', 'ol', 'dl', 'details');
     $excludeTags = array('noframe', 'noscript', 'script', 'style', 'frames', 'frameset');
     // PHP DOMDocument doesn’t correctly handle whitespace around elements it doesn’t recognise.
     $unsupportedTags = array('data');
     if (isset($el->tagName)) {
         if (in_array(strtolower($el->tagName), $excludeTags)) {
             return $out;
         } else {
             if ($el->tagName == 'img') {
                 if ($el->getAttribute('alt') !== '') {
                     return $el->getAttribute('alt');
                 } else {
                     if (!$implied && $el->getAttribute('src') !== '') {
                         return $this->resolveUrl($el->getAttribute('src'));
                     }
                 }
             } else {
                 if ($el->tagName == 'area' and $el->getAttribute('alt') !== '') {
                     return $el->getAttribute('alt');
                 } else {
                     if ($el->tagName == 'abbr' and $el->getAttribute('title') !== '') {
                         return $el->getAttribute('title');
                     }
                 }
             }
         }
     }
     // if node is a text node get its text
     if (isset($el->nodeType) && $el->nodeType === 3) {
         $out .= $el->textContent;
     }
     // get the text of the child nodes
     if ($el->childNodes && $el->childNodes->length > 0) {
         for ($j = 0; $j < $el->childNodes->length; $j++) {
             $text = $this->innerText($el->childNodes->item($j), $implied);
             if (!is_null($text)) {
                 $out .= $text;
             }
         }
     }
     if (isset($el->tagName)) {
         // if its a block level tag add an additional space at the end
         if (in_array(strtolower($el->tagName), $blockLevelTags)) {
             $out .= ' ';
         } elseif ($implied and in_array(strtolower($el->tagName), $unsupportedTags)) {
             $out .= ' ';
         } else {
             if (strtolower($el->tagName) == 'br') {
                 // else if its a br, replace with newline
                 $out .= "\n";
             }
         }
     }
     return $out === '' ? NULL : $out;
 }