Resizing and uploading an image

[unistake]

Hi all,

 

I have been trying to create a thumbnail but have realised I can just resize the image instead.

 

I have been trying to do this and have made the code below however do not know what else I need to do to upload the new image.

 

Could someone help?

 

Thanks

 

<?php
$filename = $_FILES['image'];
$reg = "G-ZZZZ";
$width = 200;
$height = 200;

list($width_orig, $height_orig) = getimagesize($filename);

$ratio_orig = $width_orig/$height_orig;

if ($width/$height > $ratio_orig) {
   $width = $height*$ratio_orig;
} 
else {
   $height = $width/$ratio_orig;
}

$destination='aircraft/'.$reg."1.jpg";
$temp_file = $_FILES['image']['tmp_name'];
move_uploaded_file($temp_file,$destination);
?>

[girish.kc]

It looks like you are just calculating the thumbnail image size and not applying the size to the actual image.

 

Refer the bellow link, you will get many examples to create the thumbnails.

http://php.net/manual/en/function.getimagesize.php

 

- Girish

[litebearer]

FYI - here is what I use for uploading, resizing, making thumb nails and adding drop shadows.

 

the form...

<table border="1" cellspacing="5" cellpadding="5">
<tr><td>
<form action="add01.php" method="post" enctype="multipart/form-data"> 
		<input type="hidden" name="MAX_FILE_SIZE" value="2000000">
	Browse a File to Upload: <br><input type="file" name="imagename"><br>Enter a title for the picture<br>
		<input type="text" name="title" size="40" maxlength="80" value=""><br>Enter comments about the picture<br>
		<textarea name="comments" rows="5" cols="40"></textarea><br><br>
		<input type="submit" value="Submit" name="action"><br><br>note: <font color="#ff0080">max file size is: 2megs</font>
	</td>
</tr>
</table>

 

the processing page

<?PHP
/*		CHECK TO MAKE SURE FORM HAS BEEN SUBMITTED - IF NOT SEND BACK TO FORM*/
if($_SERVER['REQUEST_METHOD'] != "POST"){
// go back to form
}

/*		OPEN DATABASE CONNECTION */
include("db.php");

/*		GATHER AND SANITIZE FORM DATA */
$title = mysql_real_escape_string($_POST['title']); 
$comments =  mysql_real_escape_string($_POST['comments']); 

/*  EDIT THESE TO YOUR DESIRES */
$uploadDir = 'images/';								//	main picture folder
$max_height = 460;											//	largest height you allowed; 0 means any
$max_width = 380;												//	largest width you allowed; 0 means any
$max_file = 2000000;										//	set the max file size in bytes
$image_overwrite = 1;									// 0 means overwite; 1 means new name
$allowed_type01 = array(
"image/gif", 
"image/pjpeg", 
"image/jpeg", 
"image/png",  
"image/x-png",
"image/jpg");														// add or delete allowed image types
$do_thumb = 1;													// 1 make thumbnails; 0 means do NOT make 
$thumbDir = "thumbs/";						// thumbnail folder
$thumb_prefix = "";										// prefix for thumbnails
$thumb_width = 90;										// max thumb width
$thumb_height = 70;									// max thumb height
$do_shadow = 0;												// 0 to add drop shadow to main image. 1 do NOT
$flat_file = 0;																// 1 flat file for data; 0 database
$what_error = array();								//	error message array

/*		RESIZE FUNCTION */

function Resize_Image($save,$file,$t_w,$t_h,$s_path,$o_path) {
$s_path = trim($s_path);
$o_path = trim($o_path);
$save = $s_path . $save;
$file = $o_path . $file;
$ext = strtolower(end(explode('.',$save)));
list($width, $height) = getimagesize($file) ; 
if(($width>$t_w) OR ($height>$t_h)) {
	$r1 = $t_w/$width;
	$r2 = $t_h/$height;
	if($r1<$r2) {
	  $size = $t_w/$width;
	}else{
	  $size = $t_h/$height;
	}
}else{
	$size=1;
}
$modwidth = $width * $size; 
$modheight = $height * $size; 
$tn = imagecreatetruecolor($modwidth, $modheight) ; 
switch ($ext) {
	case 'jpg':
	case 'jpeg':
				$image = imagecreatefromjpeg($file) ; 
	break;
	case 'gif':
				$image = imagecreatefromgif($file) ; 
	break;
	case 'png':
				$image = imagecreatefrompng($file) ; 
	break;
}
imagecopyresampled($tn, $image, 0, 0, 0, 0, $modwidth, $modheight, $width, $height) ; 
imagejpeg($tn, $save, 100) ; 
return;
}
/* 		END OF RESIZE FUNCTION */

/*		DROP SHADOW FUNCTION */

function DropS($src, $temp_name) {
$ds_offest = 7;
$ds_steps = 10;
$ds_spread = 1;
$background = array("r" => 255, "g" => 255, "b" => 255);  
if(isset($src) AND file_exists($src)) {  
	list($o_width, $o_height) = getimagesize($src); 
	$width = $o_width + $ds_offest; 
	$height = $o_height + $ds_offest; 
	$image = imagecreatetruecolor($width, $height);
	$step_offset = array("r" => ($background["r"] / $ds_steps), "g" => ($background["g"] / $ds_steps), "b" => ($background["b"] / $ds_steps));
	$current_color = $background; 
	for ($i = 0; 	$i <= $ds_steps; $i++) { 
		$colors[$i] = imagecolorallocate($image, round($current_color["r"]), round($current_color["g"]), round($current_color["b"]));
		$current_color["r"] -= $step_offset["r"]; 
		$current_color["g"] -= $step_offset["g"];
		$current_color["b"] -= $step_offset["b"]; 
	}  
	imagefilledrectangle($image, 0,0, $width, $height, $colors[0]);
	for ($i = 0; $i < count($colors); $i++) { 
		imagefilledrectangle($image, $ds_offest, $ds_offest, $width, $height, $colors[$i]); 
		$width -= $ds_spread; 
		$height -= $ds_spread; 
	}  
	$original_image = imagecreatefromjpeg($src); 
	imagecopymerge($image, $original_image, 0,0, 0,0, $o_width, $o_height, 100);
	imagejpeg($image, $temp_name, 100);  
	imagedestroy($image); imagedestroy($original_image); 
} 
}
/*		END OF DROP SHADOW FUNCTION */


/*  GET BASIC INFO ABOUT UPLOADED FILE */
$original_name = str_replace ( " ", "_", $_FILES['imagename']['name'] ); 
$original_tmp = $_FILES['imagename']['tmp_name']; 
$original_size = $_FILES['imagename']['size']; 
$original_type = $_FILES['imagename']['type']; 
/*  do some basic error trapping and cleanup */
if($original_size>$max_file) {
//too large set error message and go back to form
}
if( $original_size<1) {
//no file was uploaded set error message and go back to form
}
if(!in_array($original_type, $allowed_type01)) {
// wrong file type set error message and return to form
}

/*  check to see if file already exists in the folder   if it exists AND rename option is , create new name */
$does_it = FALSE;
$original_name = strtolower($original_name);
if(file_exists($uploadDir . $original_name)) {
if($image_overwrite == 1) {
	//rename
	while(!$does_it) {
		$add_this_name = rand(1,200);
		$original_name = $add_this_name . $original_name;
		if(!file_exists($uploadDir . $original_name)) {
			$does_it = TRUE;
		}
	}
}
}

/*  ATTEMPT TO MOVE IMAGE TO PROPER LOCATION */
$uploadFile = $uploadDir . $original_name; 
if (move_uploaded_file($_FILES['imagename']['tmp_name'], $uploadFile) ) { 
// continue
} else { 
// send to error page
} 

/*   CHECK TO SEE IF IMAGE NEEDS RESIZING */
list($original_width, $original_height) = getimagesize($uploadDir . $original_name);
/* line 220 */
if($max_height<$original_height OR $max_width<$original_width) {
// dimensions are too large - resize
Resize_Image($original_name,$original_name,$max_width,$max_height,$uploadDir,$uploadDir);
}

/*  CHECK TO SEE IF THUMBNAILS IS TRUE - IF YES, MAKE AND STORE THUMB */
$thumb_name = $thumb_prefix . $original_name;

if($do_thumb == 1) {
// make a thumb
Resize_Image($thumb_name,$original_name,$thumb_width,$thumb_height,$thumbDir,$uploadDir);
}

/* CHECK TO SEE IF NEED TO ADD DROP SHADOW */
if($do_shadow <1) {
$src = $uploadDir . $original_name;
DropS($src, $src);
}

/* STORE DATA IN DATABASE */
$when = date("Y-m-d H:i:s");
$image = $original_name;
$title =  mysql_real_escape_string($title); 
$comments =  mysql_real_escape_string($comments); 
$sql1 = "INSERT INTO album (image,title,when2,comments) VALUES('$image', '$title', '$when', '$comments')";
$result2 = mysql_query($sql1);
$sid = mysql_insert_id();

/* RETURN TO FORM TO ADD ANOTHER IMAGE */
?>
<meta http-equiv="refresh" content="0;URL=add00.php"> 
<?PHP
exit();
?>