【发布时间】：2013-12-13 02:29:19
【问题描述】：
这是我当前执行 API 调用的脚本：
$client = "55447265ed444bb5b768ecb0765ba9cb";
$query = $_POST['q'];
$clnum = mt_rand(1,3);
$api = "https://api.instagram.com/v1/tags/".$query."/media/recent?client_id=".$client;
function get_curl($url) {
if(function_exists('curl_init')) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
$output = curl_exec($ch);
echo curl_error($ch);
curl_close($ch);
return $output;
} else{
return file_get_contents($url);
}
}
$response = get_curl($api);
$images = array();
if($response){
foreach(json_decode($response)->data as $item){
$src = $item->images->standard_resolution->url;
$thumb = $item->images->thumbnail->url;
$url = $item->link;
$images[] = array(
"src" => htmlspecialchars($src),
"thumb" => htmlspecialchars($thumb),
"url" => htmlspecialchars($url)
);
}
}
print_r(str_replace('\\/', '/', json_encode($images)));
die();
我发现了 2 个可以进行缓存的代码，但需要帮助将它们集成到我当前的脚本中。一个脚本比另一个长。两个脚本都执行一个 $cache 变量，后跟一个“if, else”代码，然后它们都分支到不同的代码中。第二个代码与我当前的脚本非常相似，但试图弄清楚如何合并它们。
第一个代码：
// Also Perhaps you should cache the results as the instagram API is slow
$cache = './'.sha1($url).'.json';
if(file_exists($cache) && filemtime($cache) > time() - 60*60){
// If a cache file exists, and it is newer than 1 hour, use it
$jsonData = json_decode(file_get_contents($cache));
} else {
$jsonData = json_decode((file_get_contents($url)));
file_put_contents($cache,json_encode($jsonData));
}
$result = '<div id="instagram">'.PHP_EOL;
foreach ($jsonData->data as $key=>$value) {
$result .= "\t".'<a class="fancybox" data-fancybox-group="gallery"
title="'.htmlentities($value->caption->text).' '.htmlentities(date("F j, Y, g:i a", $value->caption->created_time)).'"
style="padding:3px" href="'.$value->images->standard_resolution->url.'">
<img src="'.$value->images->low_resolution->url.'" alt="'.$value->caption->text.'" width="'.$width.'" height="'.$height.'" />
</a>'.PHP_EOL;
}
$result .= '</div>'.PHP_EOL;
return $result;
}
第二个代码：
$cache = './cache.json';
if(file_exists($cache) && filemtime($cache) > time() - 60*60){
// If a cache file exists, and it is newer than 1 hour, use it
$images = json_decode(file_get_contents($cache),true); //Decode as an json array
}
else{
// Make an API request and create the cache file
// For example, gets the 32 most popular images on Instagram
$response = get_curl($api); //change request path to pull different photos
$images = array();
if($response){
// Decode the response and build an array
foreach(json_decode($response)->data as $item){
$title = (isset($item->caption))?mb_substr($item->caption->text,0,70,"utf8"):null;
$src = $item->images->standard_resolution->url; //Caches standard res img path to variable $src
//Location coords seemed empty in the results but you would need to check them as mostly be undefined
$lat = (isset($item->data->location->latitude))?$item->data->location->latitude:null; // Caches latitude as $lat
$lon = (isset($item->data->location->longtitude))?$item->data->location->longtitude:null; // Caches longitude as $lon
$images[] = array(
"title" => htmlspecialchars($title),
"src" => htmlspecialchars($src),
"lat" => htmlspecialchars($lat),
"lon" => htmlspecialchars($lon) // Consolidates variables to an array
);
}
file_put_contents($cache,json_encode($images)); //Save as json
}
}
//Debug out
print_r($images);
//Added curl for faster response
function get_curl($url){
if(function_exists('curl_init')){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, 0);
$output = curl_exec($ch);
echo curl_error($ch);
curl_close($ch);
return $output;
}else{
return file_get_contents($url);
}
}
【问题讨论】：
-
@kwollaston - 不幸的是，不确定如何将 ETags 放入代码中。我只是在查看我的代码和其他 2 个代码。