Get Entire Post Or Page In A PHP Variable

gistfile1.php

<?php


// From http://www.smashingmagazine.com/2009/08/18/10-useful-wordpress-hook-hacks/


function callback($buffer) {
  // modify buffer here, and then return the updated code
  return $buffer;
}

function buffer_start() {
  ob_start("callback");
}

function buffer_end() {
  ob_end_flush();
}

add_action('wp_head', 'buffer_start');
add_action('wp_footer', 'buffer_end');

?>