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Get Post or Page Contents as a PHP Variable

Here is a quick snippet for placing all post or page content into a variable. We’re talking the entire page contents here, not just the content of the post. Place this code into your theme’s functions.php file:

// post contents as variable
function callback($buffer) {
	return $buffer;
function buffer_start() {
function buffer_end() {
add_action('wp_head', 'buffer_start');
add_action('wp_footer', 'buffer_end');

Once in place, this function will capture the entire page contents into a variable called “$buffer”. You may then do whatever you wish to this variable. Filter it, match it, slap it around a little and show it who’s boss. That sort of thing.

Source: Dagon DesignSee also: Digging into WordPress