CODEWITHSUNDEEP
phpimage
Connor
Connor

Reputation: 645

Check if an image exists

I have foreach loop that looks like this:

foreach($wdata->query->pages->$wpageid->images as $iimages)
{
$name = $iimages->title;
$filename = str_replace(" ", "_",$name);
$filename = str_replace("File:","",$filename);
$digest = md5($filename);
$folder = $digest[0].'/'.$digest[0].$digest[1].'/'. $filename;
$url = 'http://upload.wikimedia.org/wikipedia/commons/'.$folder;
echo "<img style='height:100px;' src='$url'>";
}

It displayes images from a returned json array ($wdata) However, some images have been moved, or don't exist anymore, and I get cracked images, does anyone know how to check if an image is real, exists and can be viewed before it is echoed

Upvotes: 0

Views: 3195

Answers (3)

zkanoca
zkanoca

Reputation: 9918

It is a remote file and file_exists() does not work for this circumstance. So I suggest you to use getimagesize() function which returns an array if the image exists.

<?php 

   $imageSize=getimagesize($url);

   if(!is_array($imageSize))
   {
       echo "<img style='height:100px;' src='$url'>";

   }
   else
   {
      echo "no image"; 
   }
?>

Another solution:

if (true === file_get_contents($url,0,null,0,1)) 
{
    echo  "<img style='height:100px;' src='$url'>";
}

This is faster because it tries to read only one byte of the file if exists.

Upvotes: 0

DevZer0
DevZer0

Reputation: 13525

Use a function as below and pass your url for test

if (image_exist($url)) {
     echo "<img ...";
}

function image_exist($url) {
$file_headers = @get_headers($url);
if($file_headers[0] == 'HTTP/1.1 200 Found') {
     return true;
}
return false;
}

Upvotes: -1

slash197
slash197

Reputation: 9034

Use the file_get_cotents() function to check if it's there

if (file_get_contents("http://....") !== false) { //display image }

Upvotes: 2

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