Shuffle text inside HTML elements - php

Question

I´m trying to shuffle articles with the PHP-shuffle function and with the Simple HTML Parser.
For example, this is my content:
<p>This is my article.</p>
<h2>This is a subheading</h2>
<p>This is an paragraph with an image inside it <img src="http://image.jpg">
</p>
The output should be something like this:
<p>article is This my .</p>
<h2>This subheading is a</h2>
<p>is an with an image paragraph inside This it <img src="http://image.jpg"></p>
However, using the Simple HTML DOM parser, I find it difficult to prevent the images from being shuffeled because they sometimes are placed inside paragraphs.
This is my current script. I feel like it is way to complicated, and it sometimes doesn't output the correct result.
Hopefully someone can help me.
$tags = 'p, ul, ol, blockquote, h1, h2, h3, h4, h5, h6, h7';
$html = str_get_html( $html );
/**
* Loop through HTML and set output
*/
foreach( $html->find( $tags ) as $article ) {
$element = $article->outertext;
$array = $article;
$tag = $article->tag;
$innerHTML = '';
// Nested paragraphs
foreach ( $array->find('p') as $el ){
$word_array = preg_replace( "#[\s]+#", " ", $el->innertext );
$words = explode( " ", $word_array );
$w = '';
shuffle( $words );
foreach ( $words as $word ){
$w .= $word . ' ';
}
$innerHTML .= $el->innertext = $w;
}
// List items
foreach ( $array->find('li') as $el ){
$word_array = preg_replace( "#[\s]+#", " ", $el->innertext );
$words = explode( " ", $word_array );
$w = '';
shuffle( $words );
foreach ( $words as $word ){
$w .= $word . ' ';
}
$innerHTML .= $el->innertext = '<li>' . $w . '</li>';
}
// Images
foreach ( $array->find('img') as $el ) {
// Blur image
$src = stripslashes( str_replace( '"', '', $el->src ) );
$new_src = $this->create_blur_image( $src );
// Replace url with base64 encode
$src = $el->src = $new_src;
$innerHTML .= $el->outertext;
}
// Output
if ( $innerHTML ){
$element = $article->innertext = $innerHTML;
} else {
$word_array = preg_replace( "#[\s]+#", " ", $article->innertext );
$words = explode( " ", $word_array );
$w = '';
shuffle( $words );
foreach ( $words as $word ){
$w .= $word . ' ';
}
$element = $article->innertext = $w;
}
$output .= $article->outertext;
}
$html = $output;
return $html;

Answer 1

Use:
function shuffle($text){
$text_array = array_shuffle(explode(" ",$text));
$text_string = implode($text_array," ");
return $text_string;
}