meme_generator.php

<?php
$start = abs(date('w')-1); //monday = 0
$start = $start . "1"; //monday = 01 (first index), friday = 41

$feed = implode(file('https://www.googleapis.com/customsearch/v1?alt=atom&cx=xxx:yyy&key=abc&q=timesheet+meme&searchType=image&start='.$start));
$xml = simplexml_load_string($feed);
$json = json_encode($xml);
$array = json_decode($json,TRUE);
$img = "";
shuffle($array["entry"]); //random selection from ten results starting from $start to avoid meme repetition
foreach($array["entry"] as $entry) { //loops until a .jpg is found
	$mystring = $entry["id"];
	$findme   = '.jpg';
	$pos = strpos($mystring, $findme);
	if ($pos !== false) {
		$img = $mystring;
		break;
	}
}

//returns JPG as an actual image
header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
header('Content-type: image/jpeg');
echo file_get_contents($img);
?>