Saving an image from a PHP URL using curl and PHP

Question

I have tried to download an image from a PHP link. When I try the link in a browser it downloads the image. I enabled curl and I set “allow_url_fopen” to true. I’ve used the methods discussed here Saving image from PHP URL but it didn’t work. I've tried "file_get_contents" too, but it didn't work. I made few changes, but still it doesn’t work. This is the code

$URL_path='http://…/index.php?r=Img/displaySavedImage&id=68';
$ch = curl_init ($URL_path);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
$raw=curl_exec($ch);
curl_close ($ch);
$fp = fopen($path_tosave.'temp_ticket.jpg','wb');
fwrite($fp, $raw);
fclose($fp);

Do you have any idea to make it works? Please help. Thanks

There isn't any syntax error. Every time an empty image saves on the hard drive but when I try the link in the browser, it downloads the image. — Mh Salim
– Mh Salim, Commented Jan 3, 2013 at 17:22

Hamed Al-Khabaz · Accepted Answer · 2013-01-03 16:51:09Z

2

<?php
    if( ini_get('allow_url_fopen') ) {
      //set the index url
      $source  = file_get_contents('http://…/index.php?r=Img/displaySavedImage&id=68');
      $filestr = "temp_ticket.jpg";
      $fp = fopen($filestr, 'wb');
      if ($fp !== false) {
        fwrite($fp, $source);
        fclose($fp);
      }
      else {
        // File could not be opened for writing
      }
    }
    else {
      // allow_url_fopen is disabled
      // See here for more information:
      // http://php.net/manual/en/filesystem.configuration.php#ini.allow-url-fopen
    }
?>

This is what I used to save an image without an extension (dynamic image generated by server). Hope it works for you. Just make sure that the file path location is fully qualified and points to an image. As @ComFreek pointed out, you can use file_put_contents which is the equivalent to calling fopen(), fwrite() and fclose() successively to write data to a file. file_put_contents

edited Jan 3, 2013 at 16:51

answered Jan 3, 2013 at 16:31

Hamed Al-Khabaz

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6 Comments

ComFreek Over a year ago

Don't use the '@' operator in order to hide errors! It is very slow.

ComFreek Over a year ago

I've improved the code a little bit. But why don't you use file_put_contents()? It's the same as calling fopen(), fwrite() and fclose().

Hamed Al-Khabaz Over a year ago

@ComFreek good observation. I did not know of such a function as of today, so thanks. I'll leave it like that so the one asking the question see what's going on and let him have a piece of action using file_put_contents.

Hamed Al-Khabaz Over a year ago

@MhSalim are you sure it's not your link that's invalid ? What's the output anyways ?

Mh Salim Over a year ago

The link is valid, when I try that in a browser, I will have the image (700 KB). But when I try the code, I only have an empty image (1KB)

|

Sorin Trimbitas · Accepted Answer · 2013-01-04 09:48:25Z

2

You can use it as a function :

function getFile($url){
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    $tmp = curl_exec($ch);
    curl_close($ch);
    if ($tmp != false){
        return $tmp;
    }
}

And to call it :

$content = getFile(URL);

Or save its content to a file :

file_put_contents(PATH, getFile(URL));

edited Jan 4, 2013 at 9:48

answered Jan 3, 2013 at 16:33

Sorin Trimbitas

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3 Comments

Sorin Trimbitas Over a year ago

Try now, I have added CURLOPT_FOLLOWLOCATION .. maybe your URL triggers a redirect too.

Mh Salim Over a year ago

Thanks, but it doesn't work, I guess it should be some thing about server side, instead of that I open the blob from the database to write it to a temp file.

Sorin Trimbitas Over a year ago

Is that URL on your own server?

MrCode · Accepted Answer · 2013-01-03 16:28:31Z

0

You're missing a closing quote and semicolon on the first line:

$URL_path='http://…/index.php?r=Img/displaySavedImage&id=68';

Also, your URL is in $URL_path but you initialise cURL with $path_img which is undefined based on the code in the question.

answered Jan 3, 2013 at 16:28

MrCode

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Comments

alizahid · Accepted Answer · 2013-01-03 16:29:33Z

0

Why use cURL when file_get_contents() does the job?

<?php

    $img = 'http://…/index.php?r=Img/displaySavedImage&id=68';

    $data = file_get_contents( $img );

    file_put_contents( 'img.jpg', $data );

?>

answered Jan 3, 2013 at 16:29

alizahid

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4 Comments

purpletree Over a year ago

Because cURL is a hell of a lot faster

Sorin Trimbitas Over a year ago

file_get_contests may be disabled for external use on some servers

alizahid Over a year ago

@SorinTrimbitas He did say he's set allow_url_fopen to true, so it couldn't be that.

Sorin Trimbitas Over a year ago

Usually a general solution is preferred to one that works only on some parts.

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