Download image from URL using php code? [duplicate]

Question

How can I use php to download an image from URL (eg: https://www.google.com/images/srpr/logo3w.png) then save it? This is what I came up with so far, it gives me an error in 'file_put_contents' function.

<form method="post" action="">
<textarea name="text" cols="60" rows="10">
</textarea><br/>
<input type="submit" class="button" value="submit" />
</form>

<?php
    $img = "no image";
    if (isset($_POST['text']))
    {
    $content = file_get_contents($_POST['text']);
    $img_path = '/images/';
    file_put_contents($img_path, $content);    
    $img = "<img src=\"".$img_path."\"/>";
    }
    echo $img;
?>

It gives me the error:

[function.file-put-contents]: failed to open stream: No such file or directory in C:\wamp\www\img.php

The /images/ directory is located in the same directory of the php file and is writable.

Answer 1

You cannot save the image with your existing code because you do not provide a file name. You need to do something like:

$filenameIn  = $_POST['text'];
$filenameOut = __DIR__ . '/images/' . basename($_POST['text']);

$contentOrFalseOnFailure   = file_get_contents($filenameIn);
$byteCountOrFalseOnFailure = file_put_contents($filenameOut, $contentOrFalseOnFailure);