php生成圆角图片的方法_PHP教程
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这篇文章主要介绍了php生成圆角图片的方法,涉及php操作图片的技巧,非常具有实用价值,需要的朋友可以参考下
本文实例讲述了php生成圆角图片的方法。分享给大家供大家参考。具体如下:
- <?php
- $image_file = $_GET['src'];
- $corner_radius = isset($_GET['radius']) ? $_GET['radius'] : 20; // The default corner radius is set to 20px
- $topleft = (isset($_GET['topleft']) and $_GET['topleft'] == "no") ? false : true; // Top-left rounded corner is shown by default
- $bottomleft = (isset($_GET['bottomleft']) and $_GET['bottomleft'] == "no") ? false : true; // Bottom-left rounded corner is shown by default
- $bottomright = (isset($_GET['bottomright']) and $_GET['bottomright'] == "no") ? false : true; // Bottom-right rounded corner is shown by default
- $topright = (isset($_GET['topright']) and $_GET['topright'] == "no") ? false : true; // Top-right rounded corner is shown by default
- $imagetype=strtolower($_GET['imagetype']);
- $backcolor=$_GET['backcolor'];
- $endsize=$corner_radius;
- $startsize=$endsize*3-1;
- $arcsize=$startsize*2+1;
- if (($imagetype=='jpeg') or ($imagetype=='jpg')) {
- $image = imagecreatefromjpeg($image_file);
- } else {
- if (($imagetype=='GIF') or ($imagetype=='gif')) {
- $image = imagecreatefromgif($image_file);
- } else {
- $image = imagecreatefrompng($image_file);
- }
- }
- $size = getimagesize($image_file);
- // Top-left corner
- $background = imagecreatetruecolor($size[0],$size[1]);
- imagecopymerge($background,$image,0,0,0,0,$size[0],$size[1],100);
- $startx=$size[0]*2-1;
- $starty=$size[1]*2-1;
- $im_temp = imagecreatetruecolor($startx,$starty);
- imagecopyresampled($im_temp, $background, 0, 0, 0, 0, $startx, $starty, $size[0], $size[1]);
- $bg = imagecolorallocate($im_temp, hexdec(substr($backcolor,0,2)),hexdec(substr($backcolor,2,2)),hexdec(substr($backcolor,4,2)));
- $fg = imagecolorallocate($im_temp, hexdec(substr($forecolor,0,2)),hexdec(substr($forecolor,2,2)),hexdec(substr($forecolor,4,2)));
- if ($topleft == true) {
- imagearc($im_temp, $startsize, $startsize, $arcsize, $arcsize, 180,270,$bg);
- imagefilltoborder($im_temp,0,0,$bg,$bg);
- }
- // Bottom-left corner
- if ($bottomleft == true) {
- imagearc($im_temp,$startsize,$starty-$startsize,$arcsize,$arcsize,90,180,$bg);
- imagefilltoborder($im_temp,0,$starty,$bg,$bg);
- }
- // Bottom-right corner
- if ($bottomright == true) {
- imagearc($im_temp, $startx-$startsize, $starty-$startsize,$arcsize, $arcsize, 0,90,$bg);
- imagefilltoborder($im_temp,$startx,$starty,$bg,$bg);
- }
- // Top-right corner
- if ($topright == true) {
- imagearc($im_temp, $startx-$startsize, $startsize,$arcsize, $arcsize, 270,360,$bg);
- imagefilltoborder($im_temp,$startx,0,$bg,$bg);
- }
- $newimage = imagecreatetruecolor($size[0],$size[1]);
- imagecopyresampled($image,$im_temp,0,0,0,0,$size[0],$size[1],$startx,$starty);
- // Output final image
- header("Content-type: image/png");
- imagepng($image);
- imagedestroy($image);
- imagedestroy($background);
- imagedestroy($im_temp);
- ?>
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PHP教程-php生成圆角图片的方法。