[ Posted by Sil3ntOne ] bulk word replace for html content

fiddle_052900.php

<?php


function treatNode($node)
{
    if ($node->hasChildNodes()) {
        foreach ($node->childNodes as $child){
            treatNode($child);
        }
    } else {
        $node->nodeValue = replaceWords($node->nodeValue);
    }
}

$wordReplacementsFrom = array('see');
$wordReplacementsTo = array('test');

function replaceWords($input) {
    GLOBAL $wordReplacementsFrom, $wordReplacementsTo;
    return str_replace($wordReplacementsFrom, $wordReplacementsTo, $input);
}

$dom = new DOMDocument;

// Supresses html parsing warnings / errors
libxml_use_internal_errors(true);
$dom->loadHTML('Edit the Expression & Text to <a href="#see">see</a> see matches. <a href="#see">see</a> see - <a href="#see">see</a> - ', LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);

$i = 0;
while (is_object($item = $dom->getElementsByTagName("*")->item($i))) {
    treatNode($item);
    $i++;
}

// htmlspecialchars so that it appears as raw html to us while testing -- Do no use htmlspecialchars in production.
echo htmlspecialchars($dom->saveHTML());


?>