header_checker.php

<?php

if(isset($argv[1])) {
	class Xml {
		public $url;
	}
	
	class Url {
		public $loc;
	}

	$xml = new Xml();
	$url = new Url();
	$url->loc = $argv[1];
	$xml->url[] = $url;
} else {
	$sitemap = "sitemap.xml";
	$xml = new SimpleXMLElement(file_get_contents($sitemap));
}

function getTextBetweenTags($string, $tagname){
    $d = new DOMDocument();
    @$d->loadHTML($string);
    $return = array();
    foreach($d->getElementsByTagName($tagname) as $item){
        $return[] = $item->textContent;
    }

    return $return;
}

foreach($xml->url as $url)
{
	$uri = isset($argv[1]) 
		? $argv[1] 
		: reset($url->loc);
		
	$pageContents = file_get_contents($uri);

	$h1Tags = getTextBetweenTags($pageContents, 'h1');
	$h2Tags = getTextBetweenTags($pageContents, 'h2');
	$h3Tags = getTextBetweenTags($pageContents, 'h3');
	$h4Tags = getTextBetweenTags($pageContents, 'h4');
	
	$h1Str = '';
	foreach($h1Tags as $tag) {
		$h1Str .= $tag  ? "H1: " . trim($tag) . "\n" : "H1: Empty\n";
	}

	$h2Str = '';
	foreach($h2Tags as $tag) {
		$h2Str .= $tag  ? "H2: " . trim($tag) . "\n" : "H2: Empty\n";
	}

	$h3Str = '';
	foreach($h3Tags as $tag) {
		$h3Str .= $tag  ? "H3:" . trim($tag) . "\n" : "H3: Empty\n";
	}

	$h4Str = '';
	foreach($h4Tags as $tag) {
		$h4Str .= $tag  ? "H4: " . trim($tag) . "\n" : "H4: Empty\n";
	}

	echo sprintf("%s,\"%s\",\"%s\",\"%s\",\"%s\"\n", $uri, $h1Str, $h2Str, $h3Str, $h4Str);
	usleep(500);
}