wechat-emotions-spider.php

<?php 
set_time_limit(0); 
// Set a valid header so browsers pick it up correctly.
header('Content-type: text/html; charset=utf-8');

// Emulate the header BigPipe sends so we can test through Varnish.
header('Surrogate-Control: BigPipe/1.0');

// Explicitly disable caching so Varnish and other upstreams won't cache.
header("Cache-Control: no-cache, must-revalidate");

// Setting this header instructs Nginx to disable fastcgi_buffering and disable
// gzip for this request.
header('X-Accel-Buffering: no');
if (ob_get_level() == 0) ob_start();		
ob_implicit_flush(true);
ob_end_flush();
$file_content = file_get_contents(dirname(__FILE__) . '/emoticons.json');

$objs = json_decode($file_content);
echo "Start down<br />\n";
foreach($objs as $k=>$obj){
	$file_content1 = file_get_contents($obj->url);
	file_put_contents($obj->md5 . '.gif', $file_content1);
	echo "Downloading " . $k . "<br />\n";
	sleep(1);
}
echo "Download Complete<br />\n";