I want people to upload their images to a page, then compress & crop them. Given below is php code for image compression , which compress the jpeg and download the compressed version. This works fine upto 3mb(4567*2755) but not files above it.
Edit:
The message that appears in the server error log is
[04-Jun-2015 08:10:07 Europe/Paris] PHP Warning: POST Content-Length of 4213306 bytes exceeds the limit of 3145728 bytes in Unknown on line 0
Please help :-(
<?php
$name = '';
$type = '';
$size = '';
$error = '';
function compress_image($source_url, $destination_url, $quality)
{
$info = getimagesize($source_url);
if ($info['mime'] == 'image/jpeg')
$image = imagecreatefromjpeg($source_url);
elseif ($info['mime'] == 'image/gif')
$image = imagecreatefromgif($source_url);
elseif ($info['mime'] == 'image/png')
$image = imagecreatefrompng($source_url);
imagejpeg($image, $destination_url, $quality);
return $destination_url;
}
if ($_POST)
{
if ($_FILES["file"]["error"] > 0)
{ $error = $_FILES["file"]["error"];
}
else if (($_FILES["file"]["type"] == "image/gif") || ($_FILES["file"]["type"] == "image/jpeg") || ($_FILES["file"]["type"] == "image/png") || ($_FILES["file"]["type"] == "image/pjpeg"))
{ $url = 'destinationx.jpg';
$filename = compress_image($_FILES["file"]["tmp_name"], $url, 40);
$buffer = file_get_contents($url); /* Force download dialog... */
header("Content-Type: application/force-download");
header("Content-Type: application/octet-stream");
header("Content-Type: application/download"); /* Don't allow caching... */ header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); /* Set data type, size and filename */
header("Content-Type: application/octet-stream");
header("Content-Transfer-Encoding: binary");
header("Content-Length: " . strlen($buffer));
header("Content-Disposition: attachment; filename=$url"); /* Send our file... */
echo $buffer; }
else { $error = "Uploaded image should be jpg or gif or png"; } } ?>
<html>
<head>
<title>Php code compress the image</title>
</head>
<body>
<div class="message">
<?php if($_POST){ if ($error) { ?>
<label class="error"><?php echo $error; ?></label>
<?php } } ?>
</div>
<fieldset class="well"> <legend>Upload Image:</legend>
<form action="" name="myform" id="myform" method="post" enctype="multipart/form-data">
<ul>
<li>
<label>Upload:</label>
<input type="file" name="file" id="file"/>
</li>
<li>
<input type="submit" name="submit" id="submit" class="submit btn-success"/>
</li>
</ul>
</form>
</fieldset>
</body>
</html>
