dedecms 缩略图url

// 生成缩略图
function generateThumbnail($src, $width, $height, $savePath) {
    $image = imagecreatefromjpeg($src);
    $thumbnail = imagescale($image, $width, $height);
    imagejpeg($thumbnail, $savePath);
    imagedestroy($image);
    imagedestroy($thumbnail);
}

// 获取缩略图URL
function getThumbnailUrl($src, $width, $height) {
    $dir = dirname($src);
    $basename = basename($src);
    $name = pathinfo($basename, PATHINFO_FILENAME);
    $ext = pathinfo($basename, PATHINFO_EXTENSION);
    $thumbnailName = $name . '_thumb_' . $width . 'x' . $height . '.' . $ext;
    $savePath = $dir . '/' . $thumbnailName;

    if (!file_exists($savePath)) {
        generateThumbnail($src, $width, $height, $savePath);
    }

    return $savePath;
}

// 示例使用
$src = '/path/to/your/image.jpg';
$width = 100;
$height = 100;
$thumbnailUrl = getThumbnailUrl($src, $width, $height);
echo $thumbnailUrl;