Modifing HTML after rendering but before outputting [Revo]

3 Posts

boomhut Reply #1, 16 years ago

Hello in an attempt do to do some text replacement on the HTML of a fully rendered document before it is outputted to the browser I encountered a problem.

I prefer to do this with a plugin, and I know that it is possible to use

$modx->event->name == 'OnParseDocument'
&$this->modx->resource->_content;

However this will trigger my plugin code to run for every resource attached to the document. Which I presume can be avoided, I tried various other events like ’OnWebPagePrerender’ but do not know how to reference the fully generated HTML code.

Any suggestions? Much appreciated!

24,544 Posts

BobRay Reply #2, 16 years ago

Use OnWebPagePrerender and grab the page content like this:

$output = &$modx->resource->_output;

Then, just modify $output however you’d like and the browser will get the altered content.

Here’s an example:

<?php
$output = &$modx->resource->_output;
$replacement = '[Expletive Deleted]';
$words = array('damned','damn','hell'  'crap');
$output = str_replace($words, $replacement, $output);
unset($words);

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3 Posts

boomhut Reply #3, 16 years ago

Thanks Bobray, resource->_output instead of resource->_content did the trick.