我正在测试一个缩略图图像创建器脚本，该脚本创建一个可以在 Web 浏览器中显示而无需先保存的缩略图。
目前我必须使用以下代码来显示图像：
include('image.inc.php');
header('Content-Type: image/png');
create_thumbnail('me.jpg', false, 200, 200);
但是如何在标准网页上显示动态生成的缩略图图像以及旁边的 html 标记？
create_thumbnail 函数：
function create_thumbnail($path, $save, $width, $height){
// Get the width[0] and height[1] of image in an array
$info = getimagesize($path);
// Create a new array that just contains the width and height
$size = array($info[0], $info[1]);
// Check what file type the image is
if($info['mime'] == 'image/png'){
$src = imagecreatefrompng($path);
}else if($info['mime'] == 'image/jpeg'){
$src = imagecreatefromjpeg($path);
}else if($info['mime'] == 'image/gif'){
$src = imagecreatefromgif($path);
}else{
// If it isn't a good file type don't do anything
return false;
}
// Create a thumbnail with the passed dimensions
$thumb = imagecreatetruecolor($width, $height);
$src_aspect = $size[0] / $size[1];
$thumb_aspect = $width / $height;
if($src_aspect < $thumb_aspect){
// Image is tall
$scale = $width / $size[0];
$new_size = array($width, $width / $src_aspect);
$src_pos = array(0, ($size[1] * $scale - $height) / $scale / 2);
}else if($src_aspect > $thumb_aspect){
// Image is wide
$scale = $height / $size[1];
$new_size = array($height * $src_aspect, $height);
$src_pos = array(($size[0] * $scale - $width) / $scale /2, 0);
}else{
// Image is square
$new_size = array($width, $height);
$src_pos = array(0, 0);
}
// Stop the new dimensions being less than 1 (this stops it breaking the code). Takes which ever value is higher.
$new_size[0] = max($new_size[0], 1);
$new_size[1] = max($new_size[1], 1);
// Copy the image into the new thumbnail
// Newly created thumbnail, image copying from, starting x-coord of thumbnail, starting y-coord of thumbnail(0,0 will fill up entire thumbnail), x-coord of original image, y-coord of original image, width of new thumbnail, height of new thumbnail, width of original image, height of original image
imagecopyresampled($thumb, $src, 0, 0, $src_pos[0], $src_pos[1], $new_size[0], $new_size[1], $size[0], $size[1]);
if($save === false){
return imagepng($thumb);
}else{
// Create the png image and save it to passed location
return imagepng($thumb, $save);
}