Thumbnail Generator PHP Code
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In my last PHP tutorial we learn how to create Contact Form using PHP . Now we move on image processing. Now a day mostly every website contains Image and on many web page Image Thumbnail uses. After the uploading any Image it becomes a thumbs image which is usually small in size.
So this is very important PHP code for every website. You can use this code on your website also to generate Image Thumbnail.
Code :
<?
if ($_REQUEST['action']=="add"){
$userfile = $HTTP_POST_FILES['photo']['tmp_name'];
$userfile_name = $HTTP_POST_FILES['photo']['name'];
$userfile_size = $HTTP_POST_FILES['photo']['size'];
$userfile_type = $HTTP_POST_FILES['photo']['type'];
/////////////////////////
//GET-DECLARE DIMENSIONS //
$dimension = getimagesize($userfile);
$large_width = $dimension[0]; // GET PHOTO WIDTH
$large_height = $dimension[1]; //GET PHOTO HEIGHT
$small_width = 120; // DECLARE THUMB WIDTH
$small_height = 90; // DECLARE THUMB HEIGHT
/////////////////////////
//CHECK SIZE //
if ($userfile_size>102400){
$error=1;
$msg = "The photo is over 100kb. Please try again.";
}
////////////////////////////////
// CHECK TYPE (IE AND OTHERS) //
if ($userfile_type="image/pjpeg"){
if ($userfile_type!="image/jpeg"){
$error=1;
$msg = "The photo must be JPG";
}
}
//////////////////////////////
//CHECK WIDTH/HEIGHT //
if ($large_width!=600 or$large_height!=400){
$error=1;
$msg = "The photo must be 600x400 pixels";
}
///////////////////////////////////////////
//CREATE THUMB / UPLOAD THUMB AND PHOTO ///
if ($error<>1){
$image = $userfile_name; //if you want to insert it to the database
$pic = imagecreatefromjpeg($userfile);
$small = imagecreatetruecolor($small_width,$small_height);
imagecopyresampled($small,$pic,0,0,0,0, $small_width,
$small_height, $large_width, $large_height);
if (imagejpeg($small,"path/to/folder/to/upload/thumb".$userfile_name, 100)){
$large = imagecreatetruecolor($large_width,$large_height);
imagecopyresampled($large,$pic,0,0,0,0, $large_width,
$large_height, $large_width, $large_height);
if (imagejpeg($large,"path/to/folder/to/upload/photo".$userfile_name, 100))
{}
else {$msg="A problem has occured. Please try again."; $error=1;}
}
else {
$msg="A problem has occured. Please try again."; $error=1;
}
}
//////////////////////////////////////////////
/// If everything went right a photo (600x400) and
/// a thumb(120x90) were uploaded to the given folders
}
?> <code></code>
<html><head><title>create thumb</title></head>
<body>
<form name="form1" enctype="multipart/form-data"
action="thisfile.php?action=add" method="post">
Select Photo: <input type="file" name="photo">
<input type="submit" name="submit" value="CREATE THUMB AND UPLOAD">
</form>
</body
</html>
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