How to Use php and Other proportional scaling images,

How to Use php and Other proportional scaling images,

This article describes how to implement image compression in PHP. You can directly upload the code, imgzip ($ src, $ newwid, $ newhei), based on the specific application reference or improvement) this function carries the original image, the width required for scaling, and the scaling length.

<? Php // compress image thumbnails $ src = "xiezheng.jpg"; $ newwid = 640; $ newhei = 480; function imgzip ($ src, $ newwid, $ newhei) {$ imgInfo = getimagesize ($ src); $ imgType = image_type_to_extension ($ imgInfo [2], false); $ fun = "imagecreatefrom {$ imgType }"; // declare the image to open the image in the memory $ image = $ fun ($ src); // you can easily configure the length, width, and height. The setting box is the variable wid, the height is hei $ wid = $ imgInfo [0]; $ hei = $ imgInfo [1]; // you can determine the length and width to facilitate proportional scaling, 500,320 if ($ wid> $ hei) {$ wid = $ newwid; $ hei = $ newwid/($ wi D/$ hei);} else {$ wid = $ newhei * ($ wid/$ hei); $ hei = $ newhei ;} // create an image in the memory $ images2 = imagecreatetruecolor ($ newwid, $ newhei ); // create a 500*320 image // copy the original image to the new image // imagecopyresampled ($ dst_image, $ src_image, $ dst_x, $ dst_y, $ src_x, $ src_y, $ dst_w, $ dst_h, $ src_w, $ src_h) imagecopyresampled ($ images2, $ image, 0, 0, 0, 0, $ wid, $ hei, $ imgInfo [0], $ imgInfo [1]); // destroy the original image imagedestroy ($ image); // directly output the image File header ("Content-type :". $ imgInfo ['mime ']); imagejpeg ($ images2); // Save the image to the new file imagejpeg ($ images2, 'new.jpg', 100 ); // 10 code output image quality 0-100 100 highest quality // destroy imagedestroy ($ images2);} imgzip ($ src, $ newwid, $ newhei);?>

I hope this article will help you with PHP programming.