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Function for creating thumbnail
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<?php
//Create Thumbnail using image
function createThumbs( $pathToImages,$file_name, $pathToThumbs, $thumbWidth){
$pathToImages = $pathToImages.$file_name;
//Function for getting image type
$type = exif_imagetype($pathToImages);
//-------------------------------------------------------------------------
//Imagetype Constants for different image types
//Type = 1 IMAGETYPE_GIF
//Type = 2 IMAGETYPE_JPEG
//Type = 3 IMAGETYPE_PNG
//Type = 6 IMAGETYPE_BMP
//-------------------------------------------------------------------------
switch($type)
{
case 1:
$img = imagecreatefromgif($pathToImages);
break;
case 2:
$img = imagecreatefromjpeg($pathToImages );
break;
case 3:
$img = imagecreatefrompng($pathToImages);
break;
case 6:
$img = imagecreatefromwbmp($pathToImages);
break;
}
// load image and get image size
$width = imagesx( $img );
$height = imagesy( $img );
// calculate thumbnail size
if( $width >=$height) {
//If width is greater than height
$new_width = $thumbWidth;
$new_height = floor( $height * ( $thumbWidth / $width ) );
}else{
//If height is greater than width
$new_width = $thumbWidth;
$new_height = floor( $width * ( $thumbWidth / $height ) );
}
// create a new temporary image
// echo $new_height;
$tmp_img = imagecreatetruecolor( $new_width, $new_height );
// copy and resize old image into new image
imagecopyresized( $tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height );
// save thumbnail into a file
switch($type){
case 1:
$img = imagegif( $tmp_img, $pathToThumbs.$file_name);
break;
case 2:
$img = imagejpeg( $tmp_img, $pathToThumbs.$file_name);
break;
case 3:
$img = imagepng($tmp_img, $pathToThumbs.$file_name);
break;
case 6:
$img = imagewbmp($tmp_img, $pathToThumbs.$file_name);
break;
}
$file_name = $src_img = $pathToThumbs.$file_name;
}
?> | |
usage example
| <?php
//Creating thumbnail of image using function
//100 is the width of the thumb nail
createThumbs("../watermark_image/",$prodImage1,"../watermark_image/thumbs/",100);
?> | |
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| Create Thumbnails - resize an image - jpeg, jpg, gif, png to the specifed width and height in proportion without loosing out on pixcel quality.
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