PHP image scaling, _PHP tutorial

PHP pictures are scaled proportionally,

Create a new file index.php, and there needs to be a picture q.jpg in the statistics directory (the name of the picture can be changed according to the source code)

The source code is as follows:

$filename="q.jpg";
$per=0.3;
list($width, $height)=getimagesize($filename);
$n_w =$width*$per;
$n_h=$height*$per;
$new=imagecreatetruecolor($n_w, $n_h);
$img=imagecreatefromjpeg($filename);
/ /Copy part of the image and adjust it
imagecopyresized($new, $img,0, 0,0, 0,$n_w, $n_h, $width, $height);
//Image output new image, save as
imagejpeg($new, "q1.jpg");
imagedestroy($new);
imagedestroy($img);
?>

After running it with a browser, there will be q1.jpg in the directory at the same level as index.php. This image is a scaled image. The path can be changed in the source code and placed in your own project. You can go or write a method

http://www.bkjia.com/PHPjc/1035423.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/1035423.htmlTechArticlePHP pictures are scaled proportionally. Create a new file index.php. There needs to be a picture q.jpg in the statistics directory. (The name of the picture can be changed according to the source code) The source code is as follows: ?php $filename="q....