PHP图像上传并将图像名称存储到MySQL表列脚本不起作用？

Question

脚本的构造如下:

// Function For Image Upload
public function storeUploadedImage($image) {
    if ($image['error'] == UPLOAD_ERR_OK) {
        // Does the Document object have an ID?
        if (is_null($this->id))
            trigger_error("Document::storeUploadedImage(): Attempt to upload an image for an Document object that does not have its ID property set.", E_USER_ERROR);
        // Delete any previous image(s) for this Document
        $this->deleteImages();
        // Get and store the image filename extension
        $this->imgExtension = strtolower(strrchr($image['name'], '.'));
        // Store the image
        $tempFilename = trim($image['tmp_name']); 
        if (is_uploaded_file ($tempFilename)) {
        if (!(move_uploaded_file($tempFilename, $this->getImagePath())))
            trigger_error("Document::storeUploadedImage(): Couldn't move uploaded file.", E_USER_ERROR);
        if (!(chmod($this->getImagePath(), 0666)))
            trigger_error("Document::storeUploadedImage(): Couldn't set permissions on uploaded file.", E_USER_ERROR);}
        // Get the image size and type/Extension
        $attrs = getimagesize ($this->getImagePath());
        $imageWidth = $attrs[0];
        $imageHeight = $attrs[1];
        $imageType = $attrs[2];
        // Load the image into memory
        switch ($imageType) {
        case IMAGETYPE_GIF:
            $imageResource = imagecreatefromgif ($this->getImagePath());
            break;
        case IMAGETYPE_JPEG:
            $imageResource = imagecreatefromjpeg ($this->getImagePath());
            break;
        case IMAGETYPE_PNG:
            $imageResource = imagecreatefrompng ($this->getImagePath());
            break;
        default:
            trigger_error ("Document::storeUploadedImage(): Unhandled or unknown image type ($imageType)", E_USER_ERROR);
        }
        // Copy And Resize The Image To Create The Thumbnail
        $thumbHeight = intval ($imageHeight / $imageWidth * 120);
        $thumbResource = imagecreatetruecolor (120, $thumbHeight);
        imagecopyresampled($thumbResource, $imageResource, 0, 0, 0, 0, 120, $thumbHeight, $imageWidth, $imageHeight);
        // Save the Image thumbnail
        switch ($imageType) {
        case IMAGETYPE_GIF:
            imagegif ($thumbResource, $this->getImagePath("thumb"));
            break;
        case IMAGETYPE_JPEG:
            imagejpeg ($thumbResource, $this->getImagePath("thumb"), 85);
            break;
        case IMAGETYPE_PNG:
            imagepng ($thumbResource, $this->getImagePath("thumb"));
            break;
        default:
            trigger_error ("Document::storeUploadedImage(): Unhandled or unknown image type ($imageType)", E_USER_ERROR);
        }
        $this->update();
    }
}
// Funcion To Get The Relative Path To The Article's Fullsize Image
public function getImagePath($type="fullsize") {
    return ($this->id && $this->imgExtension) ? ("/images" . "/$type/" . $this->id . $this->imgExtension) : false;
}

这是表单输入字段:

 <input type="file" name="image" id="image" placeholder="Choose an image to upload" maxlength="255"/>

其余输入存储到 MySQL 数据库表中。上传时没有显示错误。图像未上传到此脚本所需的配置文件中定义的指定目录

Answer 1

不幸的是，我还不能发表评论，所以我写这个作为答案。

您检查图像是否正确上传并使用它，但该函数不执行任何其他操作。然后，您使用 is_uploaded_file 检查文件是否已正确上传，如果没有...您继续您的例程。抛出异常会更明智，就像您在其他地方所做的那样。

您是否将错误报告级别设置为合理的级别(以便您知道出了什么问题)？