Jump to main content Jump to doc navigation

Event: OnWebPagePrerender

Fired after a Resource is parsed, but before it is rendered.

Content Type headers have not yet been sent, nor has the output been flushed.

  • Service: 5 - Template Service Events
  • Group: None

Event Parameters

None.

Example

Description: Filter words from a document before it's displayed on the web System Events: OnWebPagePrerender

$words = array("snippet", "template"); // words to filter
$output = &$modx->resource->_output; // get a reference to the output
$output = str_replace($words,"<b>[filtered]</b>",$output);

Be careful if your OnWebPagePrerender plugin is a static element and it includes or requires files using relative paths. The plugin code executes from its cached file, e.g. core/cache/includes/elements/modplugin/7.include.cache.php, not from the original static element file. See Bug 11129

Example

Such a plugin will replace the words on pages:

<?php
switch($eventName) {
    case 'OnWebPagePrerender': 
        // words to be replaced
        $words = array("Product", "Price");
        // get access to the page content
        $output = &$modx->resource->_output;
        // we replace words
        $output = str_replace($words,"changed",$output); 
        break;
}

See Also

Support the team building MODX with a monthly donation.

The budget raised through OpenCollective is transparent, including payouts, and any contributor can apply to be paid for their work on MODX.

Backers

  • modmore
  • STERC
  • Digital Penguin
  • Jens Wittmann – Gestaltung & Entwicklung
  • Fabian Christen
  • Dannevang Digital
  • Sepia River Studios
  • CrewMark
  • Chris Fickling
  • deJaya
  • eydolan
  • Following Sea
  • Lefthandmedia
  • Murray Wood
  • Anton Tarasov
  • Stéphane Jäggi
  • Raffy
  • Snow Creative
  • Nick Clark
  • A. Moreno
  • JT Skaggs
  • Helen
  • YJ
  • krisznet
  • Richard
  • Yanni

Budget

$311 per month—let's make that $500!

Learn more