innerHTML in PHP

Php-mysql Course

The innerHTML() function presented in this page it is the equivalent of the innerHTML property from JavaScript. This function can be used in PHP to get the HTML content from a HTML element within a DOMDocument object.

Code of innerHTML()

// returns a string with the HTML content from a DOMDocument node element ($elm)
function innerHTML(DOMNode $elm) { 
  $innerHTML = ''; 
  $children  = $elm->childNodes;

  foreach($children as $child) { 
    $innerHTML .= $elm->ownerDocument->saveHTML($child);
  }

  return $innerHTML;
}

- Example usage of innerHTML().

<?php
// returns a string with the HTML content from a DOMDocument node element ($elm)
function innerHTML(DOMNode $elm) { 
  $innerHTML = ''; 
  $children  = $elm->childNodes;

  foreach($children as $child) { 
    $innerHTML .= $elm->ownerDocument->saveHTML($child);
  }

  return $innerHTML;
}

// string with HTML content
$strhtml = '<div id="dv1">Flash Games: https://marplo.net/jocuri/</div>
 <div id="dv2"><p class="cls">Free PHP Course: <a href="https://coursesweb.net/php-mysql/" title="PHP Course">CoursesWeb.net</a></p></div>';

// create the DOMDocument object, and load HTML from $strhtml
$dochtml = new DOMDocument();
$dochtml->loadHTML($strhtml);

// get the element with id="dv2"
$dv2 = $dochtml->getElementById('dv2');

// uses innerHTML() to get the HTML content from $dv2
$cnt_dv2 = innerHTML($dv2);

// output the HTML content
echo $cnt_dv2;
?>

- Output:

<img src="image.jpg" usemap="#map1">
<map name="map1">
  <area shape="rect" coords="9, 120, 56, 149" href="#">
  <area shape="rect" coords="100, 200, 156, 249" href="#">
</map>

#id {
  overflow: auto;
}

document.getElementById("id").onmouseover = function(){
  document.write("Have Good Life");
}

if(isset($_GET["id"])) {
  echo $_GET["id"];
}