note 82343 deleted from function.getimagesize by cmb
| From: | cmb@php.net | Date: | Sun, 18 Dec 2016 09:37:43 +0000 |
| Subject: | note 82343 deleted from function.getimagesize by cmb | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-208623@lists.php.net to get a copy of this message | ||
Note Submitter: devon at example dot com
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***********************************
Copies Source Image to Destination Image
***********************************
1. Copies source image
2. Calculates image dimensions
3. Resizes image (you specify max height/width)
4. Retains aspect ratio
5. Writes destination image
***********************************
This was created from a variety of code snippets
I've found here at php.net and other places on the web.
I take no credit for any of this code other than
putting the pieces together.
<?php
$source_pic = 'images/source.jpg';
$destination_pic = 'images/destination.jpg';
$max_width = 500;
$max_height = 500;
$src = imagecreatefromjpeg($source_pic);
list($width,$height)=getimagesize($source_pic);
$x_ratio = $max_width / $width;
$y_ratio = $max_height / $height;
if( ($width <= $max_width) && ($height <= $max_height) ){
$tn_width = $width;
$tn_height = $height;
}elseif (($x_ratio * $height) < $max_height){
$tn_height = ceil($x_ratio * $height);
$tn_width = $max_width;
}else{
$tn_width = ceil($y_ratio * $width);
$tn_height = $max_height;
}
$tmp=imagecreatetruecolor($tn_width,$tn_height);
imagecopyresampled($tmp,$src,0,0,0,0,$tn_width, $tn_height,$width,$height);
imagejpeg($tmp,$destination_pic,100);
imagedestroy($src);
imagedestroy($tmp);
?>