Restrict Height of Uploaded Image

[justlukeyou]

Hi,

 

I have code which uploads an image however I am stuck on how to restrict the height of an uploaded image.

 

I can displays images once they are uploaded but if someone uploads a very tall images then it ruins the whole design of the site.

 

I have gone through these sites but I am now more confused. Can anyone advise the best route to take to restrict an image upload?

 

http://stackoverflow.com/questions/4612289/resize-image-on-upload-php

http://www.9lessons.info/2009/03/upload-and-resize-image-with-php.html

http://www.white-hat-web-design.co.uk/blog/resizing-images-with-php/

if ($_FILES['uploadLogo']['tmp_name'] != "") {
// Run error handling on the file
// Set Max file size limit to somewhere around 2mb
$maxfilesize = 3145728; //size in bytes
// Check file size, if too large exit and tell them why
if($_FILES['uploadLogo']['size'] > $maxfilesize ) { 
    echo "<br /><br />Your logo image was too large. Must be 3Mb or less, please<br /><br />
        <a href=\"gallery_upload.php\">click here</a> to try again";
        unlink($_FILES['uploadLogo']['tmp_name']); 
        exit();
	// Check file extension to see if it is .jpg, if not exit and tell them why
} else if (!preg_match("/\.(gif|png|jpg|jpeg)$/i", $_FILES['uploadLogo']['name'] ) ) {
        echo "<br /><br />Your image was not .jpg, please<br />
        <a href=\"gallery_upload.php\">click here</a> to try again";
        unlink($_FILES['uploadLogo']['tmp_name']);
        exit();
        // If no errors on the file process it and upload to server 
} else { 
        // Set the direntory for where to upload it, use the member id to hit their folder
        // Upload the file
	    /*if(isset($_GET['id'])){
		if (!is_dir('memberFiles/'.$id.'/images/')) { //if memberFiles folder does not exist
 			mkdir('memberFiles/'.$id.'/images/'); //make the folder 
		}*/
		if (!is_dir('images/')) { //if memberFiles folder does not exist
 			mkdir('images/'); //make the folder 
		}
	        $target_path = 'images/'; //set targetpath
}
		//adjust target path to create new file name which include $id and current date and original filename
		$ref = "-". gmdate('jmyhis') ."-". basename( $_FILES['uploadLogo']['name']);
		$target_path .= $ref;
		$filename = basename($_FILES['uploadLogo']['name']); 
		$date =	gmdate('j-m-y h:i:s');
		$filename;
		
if(move_uploaded_file($_FILES['uploadLogo']['tmp_name'], $target_path)) {
		mysql_query("UPDATE users SET logo='$ref' WHERE id='$myID'");
        echo "Your image ".$filename." has been uploaded";
} else {
    	echo "There was an error uploading the logo file, please try again!";
}
}

[timothyarden]

$image_info = getimagesize($_FILES["file_field_name"]["tmp_name"]);
$image_width = $image_info[0];
$image_height = $image_info[1];

 

http://stackoverflow.com/questions/8486414/check-image-dimensions-height-and-width-before-uploading-image-using-php

 

then do an if checking the image height and width is below the maximum amount you would like