Downloading Images from URL in PHP - php

Question

I have a file, where I read URLs line by line. The URL are links to images. All the image-links work in the browser. Now I want to download them to my current directory. For the record I need to use a PHP-script.
This is how I get my Images:
for ($j; $j< $count;$j++)
{
// Get Image-URL as String and then do getImage
$image = $arr[$j];
$newname = $j;
getImage($image, $newname);
}
function getImage($image, $newname)
{
$ch = curl_init($image);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
$rawdata=curl_exec ($ch);
curl_close ($ch);
$fp = fopen("$newname.jpg",'w');
fwrite($fp, $rawdata);
fclose($fp);
}
But the problem is, I get all the images, only the last one is viewable. The others I can't open and they only have 1KB.
So what did I do wrong?
Plus I need to also download png-Files later on, so can I then just change the $newname.jpg into $newname.png?
Thanks in advance, I really need an answer fast, been sitting here for hours, trying to figure it out.

Answer 1

Why not use stream_copy_to_stream?
function getImage($image, $newname, $fileType = "jpg")
{
$in = fopen($image, "r");
$out = fopen("$newname.$fileType",'w');
stream_copy_to_stream($in, $out);
fclose($in); fclose($out);
}
You can also play with stream_set_read_buffer
stream_set_read_buffer($in, 4096);
Just tested this with our avatar pics.
$data = [
"https://www.gravatar.com/avatar/42eec337b6404f97aedfb4f39d4991f2?s=32&d=identicon&r=PG&f=1",
"https://www.gravatar.com/avatar/2700a034dcbecff07c55d4fef09d110b?s=32&d=identicon&r=PG&f=1",
];
foreach ($data as $i => $image) getImage($image, $i, "png");
Works perfectly.
Debug: Read the remote headers for more info?
$httpresponseheader
var_dump($http_response_header);
or stream_get_meta_data
var_dump(stream_get_meta_data($in), stream_get_meta_data($out));