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| <?php
namespace AppBundle\Model;
class Instagram
{
/*
* Attributes
*/
private $username, //Instagram username
$access_token, //Your access token
$userid; //Instagram userid
/*
* Constructor
*/
function __construct($username='',$access_token='') {
if(empty($username) || empty($access_token)){
$this->error('empty username or access token');
} else {
$this->username=$username;
$this->access_token = $access_token;
}
}
/*
* The api works mostly with user ids, but it's easier for users to use their username.
* This function gets the userid corresponding to the username
*/
public function getUserIDFromUserName(){
if(strlen($this->username)>0 && strlen($this->access_token)>0){
//Search for the username
$useridquery = $this->queryInstagram('https://api.instagram.com/v1/users/search?q='.$this->username.'&access_token='.$this->access_token);
if(!empty($useridquery) && $useridquery->meta->code=='200' && $useridquery->data[0]->id>0){
//Found
$this->userid=$useridquery->data[0]->id;
} else {
//Not found
$this->error('getUserIDFromUserName');
}
} else {
$this->error('empty username or access token');
}
}
/*
* Get the most recent media published by a user.
* you can use the $args array to pass the attributes that are used by the GET/users/user-id/media/recent method
*/
public function getUserMedia($args=array()){
if($this->userid<=0){
//If no user id, get user id
$this->getUserIDFromUserName();
}
if($this->userid>0 && strlen($this->access_token)>0){
$qs='';
if(!empty($args)){ $qs = '&'.http_build_query($args); } //Adds query string if any args are specified
$shots = $this->queryInstagram('https://api.instagram.com/v1/users/'.(int)$this->userid.'/media/recent?access_token='.$this->access_token.$qs); //Get shots
if($shots->meta->code=='200'){
return $shots;
} else {
$this->error('getUserMedia');
}
} else {
$this->error('empty username or access token');
}
}
/*
* Method that simply displays the shots in a ul.
* Used for simplicity and demo purposes
* You should probably move the markup out of this class to use it directly in your page markup
*/
public function simpleDisplay($shots){
$simpleDisplay = '';
if(!empty($shots->data)){
$simpleDisplay.='<ul class="instagram_shots">';
foreach($shots->data as $istg){
//The image
$istg_thumbnail = $istg->{'images'}->{'thumbnail'}->{'url'}; //Thumbnail
//If you want to display another size, you can use 'low_resolution', or 'standard_resolution' in place of 'thumbnail'
//The link
$istg_link = $istg->{'link'}; //Link to the picture's instagram page, to link to the picture image only, use $istg->{'images'}->{'standard_resolution'}->{'url'}
//The caption
$istg_caption = "";
if(isset( $istg->{'caption'}->{'text'} )) {
$istg_caption = $istg->{'caption'}->{'text'};
}
//The markup
$simpleDisplay.='<li><a class="instalink" href="'.$istg_link.'" target="_blank"><img src="'.$istg_thumbnail.'" alt="'.$istg_caption.'" title="'.$istg_caption.'" /></a></li>';
}
$simpleDisplay.='<ul>';
} else {
$this->error('simpleDisplay');
}
return $simpleDisplay;
}
/*
* Common mechanism to query the instagram api
*/
public function queryInstagram($url){
//prepare caching
$cachefolder = __DIR__.'/';
$cachekey = md5($url);
$cachefile = $cachefolder.$cachekey.'_'.date('i').'.txt'; //cached for one minute
//If not cached, -> instagram request
if(!file_exists($cachefile)){
//Request
$request='error';
if(!extension_loaded('openssl')){ $request = 'This class requires the php extension open_ssl to work as the instagram api works with httpS.'; }
else { $request = file_get_contents($url); }
//remove old caches
$oldcaches = glob($cachefolder.$cachekey."*.txt");
if(!empty($oldcaches)){foreach($oldcaches as $todel){
unlink($todel);
}}
//Cache result
$rh = fopen($cachefile,'w+');
fwrite($rh,$request);
fclose($rh);
}
//Execute and return query
$query = json_decode(file_get_contents($cachefile));
return $query;
}
/*
* Error
*/
public function error($src=''){
trigger_error( '/!\ error '.$src.'. ', E_USER_WARNING);
}
} |
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