OBTENCIÓN DE POSTS DE TUMBLR SEGÚN BÚSQUEDA

obtencion_imagenes_tumblr.php

<?php
$busqueda="php"; // Texto a buscar
$n=1; // Número de página
$request = 'http://www.tumblr.com/search/'.$busqueda;
$fields = array(
						'post_page' => urlencode($n),
						'post_view' => urlencode('list')
				);

foreach($fields as $key=>$value) { $fields_string .= $key.'='.$value.'&'; }
rtrim($fields_string, '&');
$ci = curl_init($request);
curl_setopt($ci,CURLOPT_POST, count($fields));
curl_setopt($ci,CURLOPT_POSTFIELDS, $fields_string);
curl_setopt($ci, CURLOPT_RETURNTRANSFER, TRUE);
$input = curl_exec($ci);

$dom = new DomDocument();
@$dom->loadHTML($input);
$finder = new DomXPath($dom);
$nodes = $finder->evaluate(
    "/html/body//div[@class='post_wrapper']"
);

foreach($nodes as $div) {
$newdom = new DOMDocument;
@$newdom->loadHTML(get_inner_html($div));
$finder = new DomXPath($newdom);
$image = $newdom->getElementsByTagName('img')->item(0);
$link = $finder->query("//*[contains(concat(' ', normalize-space(@class), ' '), 'post_permalink')]")->item(0);
if(is_object($image)) {
$imagen = $image->getAttribute('src'); // URL de la imagen
$url = $link->getAttribute('href'); // URL del post en tumblr
echo "<a href='$url'><img src='$imagen' alt='Imagen'/></a><br>";
}
}



function get_inner_html( $node ) { 
    $innerHTML= ''; 
    $children = $node->childNodes; 
    foreach ($children as $child) { 
        $innerHTML .= $child->ownerDocument->saveXML( $child ); 
    } 

    return $innerHTML; 
} 

?>