我觉得我想太多了。我想要做的是从 instagram api 中提取最新的照片并将生成的 json 信息保存为缓存文件。然后我将使用 jQuery 来读取该文件——我已经弄清楚了这一部分。我现在使用的是将其保存在缓存文件中,但不是以我识别的格式。我认为我把这个问题过于复杂化了。
这是我根据我找到的教程一直在使用的代码:
// Client ID for Instagram API
$instagramClientID = '9110e8c268384cb79901a96e3a16f588';
$api = 'https://api.instagram.com/v1/media/popular?client_id='.$instagramClientID; //api request (edit this to reflect tags)
$cache = 'cache.txt';
if(file_exists($cache) && filemtime($cache) > time() - 60*60){
// If a cache file exists, and it is newer than 1 hour, use it
$images = unserialize(file_get_contents($cache));
}
else{
// Make an API request and create the cache file
// For example, gets the 32 most popular images on Instagram
$response = file_get_contents($api); //change request path to pull different photos
$images = array();
// Decode the response and build an array
foreach(json_decode($response)->data as $item){ // Decodes json (javascript) into an array
$title = '';
if($item->caption){
$title = mb_substr($item->caption->text,0,70,"utf8");
}
$src = $item->images->standard_resolution->url; //Caches standard res img path to variable $src
$lat = $item->data->location->latitude; // Caches latitude as $lat
$lon = $item->data->location->longtitude; // Caches longitude as $lon
$images[] = array(
"title" => htmlspecialchars($title),
"src" => htmlspecialchars($src),
"lat" => htmlspecialchars($lat),
"lon" => htmlspecialchars($lon) // Consolidates variables to an array
);
}
// Remove the last item, so we still have
// 32 items when when the cover is added
//array_pop($images);
// Push the cover in the beginning of the array
//array_unshift($images,array("title"=>"Cover", "src"=>"assets/img/cover.jpg"));
// Update the cache file
file_put_contents($cache,serialize($images));
}
最佳答案
我注意到的一件事是 API 非常慢,是缓存的好选择。
您正在尝试将其另存为序列化数组(这没什么大不了的),但如果您要再次将其读取为 json,您也可以将其另存为 json,这样可以节省再次反序列化的 1 个步骤。
以下是我所做的一些更改: 添加了curl来尝试加快响应速度,或者如果您没有安装它,则退回到FGC。 响应被保存为 json,当从缓存中检索时,它被解码为数组而不是对象,这意味着您可以保持相同的数组结构。
$item->data->location->latitude
和 $item->data->location->longtitude
在结果中始终为 null,因此添加了检查为此...
希望对你有帮助
<?php
// Client ID for Instagram API
$instagramClientID = '9110e8c268384cb79901a96e3a16f588';
$api = 'https://api.instagram.com/v1/media/popular?client_id='.$instagramClientID; //api request (edit this to reflect tags)
$cache = './cache.json';
if(file_exists($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);
}
}
?>
关于php - 使用 PHP 通过 Instagram API 存储 json,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10157221/