dpj83664
2013-06-06 02:51
浏览 350
已采纳

使用PHP从URL保存图像(以0KB文件大小保存)

What I'm trying to do:

file_get_contents() an online image, then save it to a directory on my server, with a new filename. The save path / directory is writable. CHMOD permissions: 777


What I've tried:

  • file_put_contents($filepath, file_get_contents($image_url)); // SAVES 0KB IMAGE

  • copy($image_url,$filepath); // SAVES 0KB IMAGE

  • cURL // SAVES 0KB IMAGE

So I'm already getting confused why none of this is working, when it should be...


Here are the relevant values inside my PHPinfo:

allow_url_fopen = On  
allow_url_include = On  
open_basedir = no value  

post_max_size = 8M  
upload_max_filesize = 50M  
upload_tmp_dir = no value  

max_execution_time = 18000  
max_file_uploads = 20  
max_input_nesting_level = 64  
max_input_time = 60  
max_input_vars = 1000  
memory_limit = 256M

And here is my full PHP code (I'm now using a function to save the image, because I'm just about desperate enough to try anything):

function save_image($inPath,$outPath)
{ // Download images from remote server
    $in=    fopen($inPath, "rb");
    $out=   fopen($outPath, "wb");
    while ($chunk = fread($in,8388608))
    {
        fwrite($out, $chunk, 8388608);
    }
    fclose($in);
    fclose($out);
}

// THE ORIGINAL IMAGE TO GET
$image_url = 'http://m1.i.pbase.com/u38/antidote3/upload/31848351.Cute.jpg';

// THE IMAGE EXTENSION
$image_type = substr(strrchr($image_url,"."),1);

// THE NEW FILE NAME
$filename   = 'product5_'. md5($image_url . $sku).'.'.$image_type;

// THE SAVE PATH
// OUTPUT: /var/www/site/media/catalog/product/FILE_NAME.FILE_TYPE
$filepath   = Mage::getBaseDir('media') . DS . 'catalog'. DS . 'product'. DS . $filename;

// SAVE THIS BIATCH!
save_image($image_url, $filepath);

// OTHER SAVE METHODS
// file_put_contents($filepath, file_get_contents($image_url));
// copy($image_url,$filepath);

Running strlen(file_get_contents($image_url)) on the image returns a big fat 0.
But shouldn't it work with the following enabled on my server?

allow_url_fopen = On  
allow_url_include = On

Apparently, the problem doesn't lie on the writing, but file_get_contents($image_url) doesn't have anything inside it.

Any ideas why? Thanks!


Other Information:

  • Platform: Magento
  • Language: PHP
  • PHP Version: 5.4.6
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3条回答 默认 最新

  • duanniu3385 2013-07-02 09:13
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    The answer is: a firewall rule on the server was causing it. Thanks everyone for the help!

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  • dongyang4615 2013-06-06 02:59

    Maybe you should try something like this (using feof and fread the right way!) - I also changed how you are grabbing the extension:

    <?php
    function save_image($inPath, $outPath) {
      $in  = fopen($inPath,  "rb");
      $out = fopen($outPath, "wb");
    
      while (!feof($in)) {
        $read = fread($in, 8192);
        fwrite($out, $read);
      }
    
      fclose($in);
      fclose($out);
    }
    
    // THE ORIGINAL IMAGE TO GET
    $image_url = 'http://m1.i.pbase.com/u38/antidote3/upload/31848351.Cute.jpg';
    
    // THE IMAGE EXTENSION
    $image_type = end(explode(".", $image_url));
    
    // THE NEW FILE NAME
    $filename   = 'product5_'. md5($image_url . $sku).'.'.$image_type;
    
    // THE SAVE PATH
    // OUTPUT: /var/www/site/media/catalog/product/FILE_NAME.FILE_TYPE
    $filepath   = Mage::getBaseDir('media') . DS . 'catalog'. DS . 'product'. DS . $filename;
    
    // SAVE THIS BIATCH!
    save_image($image_url, $filepath);
    ?>
    
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  • dongzai3139 2013-06-06 03:01

    I not sure will it help. Can you try this way?

    function save_image($inPath,$outPath) {
      $inbuf = file_get_contents($inPath);
      $fp = fopen($outPath,'w');
      fwrite($fp,$inbuf);
      fclose($fp);
    }
    

    note: it was a typo, $buf intead of $inbuf.

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