首先，我在google上搜索并阅读了所有所有帖子，但大多数都是使用类的。

我需要裁剪（调整大小）图像，然后再上传到服务器，而不是创建缩略图， 我有一个从重命名和上传的图片创建缩略图的功能， 效果很好。

但是我想在没有任何类别的情况下上传之前调整原始图像的大小 我不想共享全部代码。.lol

函数generatenewstring();正在为新名称创建随机令牌。

这是我的文件上传代码，它通过示例插入到mysql中上传原始图像：

if(isset($_POST['btnSubmit']) && isset($_FILES['fupload'])) {

    $Name = htmlspecialchars($_POST['sname']);
    if(preg_match('/[.](jpg)|(gif)|(png)$/',$_FILES['fupload']['name'])){  
            $filename = generatenewstring(10).$_FILES['fupload']['name'];
            $source = $_FILES['fupload']['tmp_name'];   
            $target = $path_to_image_directory . $filename;

            move_uploaded_file($source,$target);

                $sql = "INSERT INTO tbl_images(image,sname) VALUES (:image,:sname)";
                $stmt =$pdo->prepare($sql);
                $stmt->bindParam(":image",$filename,PDO::PARAM_STR);
                $stmt->bindParam(":sname",$Name,PDO::PARAM_STR);
                if($stmt->execute()){
                    echo "All successfully.";
                } else {
                    echo "All Not Success.";
                }
        }
}

从表单发布图像值到upload.php的变量：

<from action="upload.php">
<input type="file" name="fupload"/>
<button type="submit">submit</button>
</form>

这是upload.php

require_once('function.php');


if(isset($_POST['btnSubmit']) && isset($_FILES['fupload'])) {
    $output['status'] = FALSE;
    set_time_limit(0);
    $allowedImageType = array("image/gif","image/jpeg","image/pjpeg","image/png","image/x-png"  );

    if ($_FILES['fupload']["error"] > 0) {
        $output['error']= "File Error";
    }
    elseif (!in_array($_FILES['fupload']["type"],$allowedImageType)) {
        $output['error']= "Invalid image format";
    }
    elseif (round($_FILES['fupload']["size"] / 1024) > 4096) {
        $output['error']= "Maximum file upload size is exceeded";
    } else {
        $temp_path = $_FILES['fupload']['tmp_name'];
        $selam = $_FILES['fupload']['name'];
        $file = pathinfo($_FILES['fupload']['name']);
        $fileType = $file["extension"];
        $fileName = rand(222,888) . $selam;

        $small_thumbnail_path = "uploads/small/";
        createFolder($small_thumbnail_path);
        $small_thumbnail = $small_thumbnail_path . $fileName;

        $medium_thumbnail_path = "uploads/medium/";
        createFolder($medium_thumbnail_path);
        $medium_thumbnail = $medium_thumbnail_path . $fileName;

        $large_thumbnail_path = "uploads/large/";
        createFolder($large_thumbnail_path);
        $large_thumbnail = $large_thumbnail_path . $fileName;

        $thumb1 = createThumbnail($temp_path,$small_thumbnail,$fileType,150,93);
        $thumb2 = createThumbnail($temp_path,$medium_thumbnail,300,185);
        $thumb3 = createThumbnail($temp_path,$large_thumbnail,550,340);

        $Name = htmlspecialchars($_POST['sname']);      
        $sql = "INSERT INTO tbl_images(image,:sname)";
        $stmt =$pdo->prepare($sql);
        $stmt->bindParam(":image",PDO::PARAM_STR);
        $stmt->bindParam(":sname",PDO::PARAM_STR);
        if($stmt->execute()){
            echo "All successfully.";
        } else {
            echo "All Not Success.";
        }

        if($thumb1 && $thumb2 && $thumb3) {
            $output['status']=TRUE;
            $output['small']= $small_thumbnail;
            $output['medium']= $medium_thumbnail;
            $output['large']= $large_thumbnail;
        }
    }
    echo json_encode($output);
}

这是upload.php的精度为createThumbnails(); 我的缩略图功能：

function createFolder($path)
{       
    if (!file_exists($path)) {
        mkdir($path,0755,TRUE);
    }
}

function createThumbnail($sourcePath,$targetPath,$file_type,$thumbWidth,$thumbHeight){

    switch (strtoupper($file_type)):
    case 'jpg':
    $source = imagecreatefromjpeg($sourcePath);
    break;
    case 'JPG':
    $source = imagecreatefromjpeg($sourcePath);
    break;
    case 'png':
    $source = imagecreatefrompng($sourcePath);
    break;
    case 'PNG':
    $source = imagecreatefrompng($sourcePath);
    break;
    case 'gif':
    $source = imagecreatefromgif($sourcePath);
    break;
    case 'GIF':
    $source = imagecreatefromgif($sourcePath);
    break;
    default:
    echo "Invalid File Type";
    endswitch;

    $width = imagesx($source);
    $height = imagesy($source);

    $tnumbImage = imagecreatetruecolor($thumbWidth,$thumbHeight);

    imagecopyresampled($tnumbImage,$source,$thumbHeight,$width,$height);

    if(imagegif($tnumbImage,80)) {
        imagedestroy($tnumbImage);
        imagedestroy($source);
        return TRUE;
    }if(imagepng($tnumbImage,80)) {
        imagedestroy($tnumbImage);
        imagedestroy($source);
        return TRUE;
    }if(imagejpeg($tnumbImage,80)) {
        imagedestroy($tnumbImage);
        imagedestroy($source);
        return TRUE;
    } else {
        return FALSE;
    }
}

我尝试了几种变体，但无法使其正常工作。

最后我尝试了PHP.NET中的image();

他们没有工作，或者我无法使它们工作。

感谢您的帮助