Save image from url with curl PHP
Option #1
Instead of picking the binary/raw data into a variable and then writing, you can use CURLOPT_FILE
option to directly show a file to the curl for the downloading.
Here is the function:
// takes URL of image and Path for the image as parameter
function download_image1($image_url, $image_file){
$fp = fopen ($image_file, 'w+'); // open file handle
$ch = curl_init($image_url);
// curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // enable if you want
curl_setopt($ch, CURLOPT_FILE, $fp); // output to file
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 1000); // some large value to allow curl to run for a long time
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0');
// curl_setopt($ch, CURLOPT_VERBOSE, true); // Enable this line to see debug prints
curl_exec($ch);
curl_close($ch); // closing curl handle
fclose($fp); // closing file handle
}
And here is how you should call it:
// test the download function
download_image1("http://www.gravatar.com/avatar/10773ae6687b55736e171c038b4228d2", "local_image1.jpg");
Option #2
Now, If you want to download a very large file, that case above function may not become handy. You can use the below function this time for handling a big file. Also, you can print progress(in %
or in any other format) if you want. Below function is implemented using a callback
function that writes a chunk of data in to the file in to the progress of downloading.
// takes URL of image and Path for the image as parameter
function download_image2($image_url){
$ch = curl_init($image_url);
// curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // enable if you want
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 1000); // some large value to allow curl to run for a long time
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0');
curl_setopt($ch, CURLOPT_WRITEFUNCTION, "curl_callback");
// curl_setopt($ch, CURLOPT_VERBOSE, true); // Enable this line to see debug prints
curl_exec($ch);
curl_close($ch); // closing curl handle
}
/** callback function for curl */
function curl_callback($ch, $bytes){
global $fp;
$len = fwrite($fp, $bytes);
// if you want, you can use any progress printing here
return $len;
}
And here is how to call this function:
// test the download function
$image_file = "local_image2.jpg";
$fp = fopen ($image_file, 'w+'); // open file handle
download_image2("http://www.gravatar.com/avatar/10773ae6687b55736e171c038b4228d2");
fclose($fp); // closing file handle
try this:
function grab_image($url,$saveto){
$ch = curl_init ($url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
$raw=curl_exec($ch);
curl_close ($ch);
if(file_exists($saveto)){
unlink($saveto);
}
$fp = fopen($saveto,'x');
fwrite($fp, $raw);
fclose($fp);
}
and ensure that in php.ini allow_url_fopen is enable