Gallery Photos width and height

[Pablo]

hey guys in my gallery i have to set the width and height at certain number like width="200" height="250" can please give me the coding that when the photo is uploaded it makes it exact width and height? please

[Pablo]

i use this link $lnk = "<img src=\"max.php?filename=$img\" alt=\"$id\"/><br/>";
that links it with the max.php which get the phot size auto matically but wen i went back to the photo gallery the photos are not showing can u guys tell me wats wrong?

[blackhowk]

use this function in order to want to display the pictures with aspect ratio properly
this function run only with image path (from database, or hard coded from folders)

// image resize
function imageResize($width, $height, $target) {
if ($width > $height) {
$percentage = ($target / $width);
} else {
$percentage = ($target / $height);
}
$width = round($width * $percentage);
$height = round($height * $percentage);
return "width=\"$width\" height=\"$height\"";
}


usage:

$value = "200"; // size of image in pixels
$mysock = getimagesize("path_to_images/yourimage.jpg");
// print_r($mysock) ;
echo "<img src = \"path_to_images/yourimage.jpg\" ".imageResize($mysock[0],$mysock[1],$value)." alt =\"yourimage.jpg\"/>";

[Pablo]

ok bro thanx am a try it out am using lava script so if it dnt work i let u knw

[Pablo]

bro dnt work

[blackhowk]

its work, i use this function everywhere.
check the correct path, punctuation, and use print_r($mysock) ; to see the array.

[Pablo]

dnt knw jst not working for me

[blackhowk]

<?php
class SimpleImage {

var $image;
var $image_type;

function load($filename) {
$image_info = getimagesize($filename);
$this->image_type = $image_info[2];
if( $this->image_type == IMAGETYPE_JPEG ) {
$this->image = imagecreatefromjpeg($filename);
} elseif( $this->image_type == IMAGETYPE_GIF ) {
$this->image = imagecreatefromgif($filename);
} elseif( $this->image_type == IMAGETYPE_PNG ) {
$this->image = imagecreatefrompng($filename);
}
}
function save($filename, $image_type=IMAGETYPE_JPEG, $compression=75, $permissions=null) {
if( $image_type == IMAGETYPE_JPEG ) {
imagejpeg($this->image,$filename,$compression);
} elseif( $image_type == IMAGETYPE_GIF ) {
imagegif($this->image,$filename);
} elseif( $image_type == IMAGETYPE_PNG ) {
imagepng($this->image,$filename);
}
if( $permissions != null) {
chmod($filename,$permissions);
}
}
function output($image_type=IMAGETYPE_JPEG) {
if( $image_type == IMAGETYPE_JPEG ) {
imagejpeg($this->image);
} elseif( $image_type == IMAGETYPE_GIF ) {
imagegif($this->image);
} elseif( $image_type == IMAGETYPE_PNG ) {
imagepng($this->image);
}
}
function getWidth() {
return imagesx($this->image);
}
function getHeight() {
return imagesy($this->image);
}
function resizeToHeight($height) {
$ratio = $height / $this->getHeight();
$width = $this->getWidth() * $ratio;
$this->resize($width,$height);
}
function resizeToWidth($width) {
$ratio = $width / $this->getWidth();
$height = $this->getheight() * $ratio;
$this->resize($width,$height);
}
function scale($scale) {
$width = $this->getWidth() * $scale/100;
$height = $this->getheight() * $scale/100;
$this->resize($width,$height);
}
function resize($width,$height) {
$new_image = imagecreatetruecolor($width, $height);
imagecopyresampled($new_image, $this->image, 0, 0, 0, 0, $width, $height, $this->getWidth(), $this->getHeight());
$this->image = $new_image;
}
}
?>

// usage

Save the above file as SimpleImage.php and take a look at the following examples of how to use the script.

The first example below will load a file named picture.jpg resize it to 250 pixels wide and 400 pixels high and resave it as picture2.jpg

<?php
include('SimpleImage.php');
$image = new SimpleImage();
$image->load('picture.jpg');
$image->resize(250,400);
$image->save('picture2.jpg');
?>

If you want to resize to a specifed width but keep the dimensions ratio the same then the script can work out the required height for you, just use the resizeToWidth function.

<?php
include('SimpleImage.php');
$image = new SimpleImage();
$image->load('picture.jpg');
$image->resizeToWidth(250);
$image->save('picture2.jpg');
?>

You may wish to scale an image to a specified percentage like the following which will resize the image to 50% of its original width and height

<?php
include('SimpleImage.php');
$image = new SimpleImage();
$image->load('picture.jpg');
$image->scale(50);
$image->save('picture2.jpg');
?>

You can of course do more than one thing at once. The following example will create two new images with heights of 200 pixels and 500 pixels

<?php
include('SimpleImage.php');
$image = new SimpleImage();
$image->load('picture.jpg');
$image->resizeToHeight(500);
$image->save('picture2.jpg');
$image->resizeToHeight(200);
$image->save('picture3.jpg');
?>

The output function lets you output the image straight to the browser without having to save the file. Its useful for on the fly thumbnail generation

<?php
header('Content-Type: image/jpeg');
include('SimpleImage.php');
$image = new SimpleImage();
$image->load('picture.jpg');
$image->resizeToWidth(150);
$image->output();
?>

The following example will resize and save an image which has been uploaded via a form

<?php
if( isset($_POST['submit']) ) {
include('SimpleImage.php');
$image = new SimpleImage();
$image->load($_FILES['uploaded_image']['tmp_name']);
$image->resizeToWidth(150);
$image->output();
} else {
?>

<form action="upload.php" method="post" enctype="multipart/form-data">
<input type="file" name="uploaded_image" />
<input type="submit" name="submit" value="Upload" />
</form>

<?php
}
?>