Question

图片上传似乎正在运行，但最终结果文件是全黑区域。没有形象。

尺寸似乎正确，但新图片只是空白。

任何输入都非常感谢。这可能是我忽略的简单事情，我只需要第二眼。

/***** IMAGE UPLOAD VARIABLES *****/
// Destination
    $main_dest = "../test_img/";
    $thumb_dest = "../test_img/thumb/";
// Main Image Width
    $new_img_width = "650";
// Thumb Image Width
    $new_img_thumb_width = "100";
// Allowed Filesize (5mb)
    $allowed_img_size = "5000000";
// Define Error Message
    $error = "";

/***** EVENT EXISTING IMAGE INFO *****/
// Get image count
    $get = "SELECT * FROM `tbl_event_imgs` WHERE `event_id` = '".$event_id."'";
    $result = mysqli_query($database_link, $get);
    $count = mysqli_num_rows($result);
// Main Setting
    if ($count == 0) { $main = 1; } else { $main = 0; }

/***** IMAGE INFORMATION *****/
// Get image temporary name
    $img_tmp = $_FILES['event_image']['tmp_name'];
// Get image name (original)
    $img_name = basename($_FILES['event_image']['name']);
// Get image extension
    $img_ext = pathinfo($img_name, PATHINFO_EXTENSION);
// Get image size
    $img_size = $_FILES['event_image']['size'];
// Final image destination
    $final_main_dest = $main_dest.$img_name;

/***** IMAGE VALIDATION *****/
// Validate Image Type (jpg, jpeg, gif, png)
    if (($img_ext !== "jpg") && ($img_ext !== "jpeg") && ($img_ext !== "gif") && ($img_ext !== "png")) {
        $upload_error = 1;
        $error .= "filetype";
    }
// Validate Image Size  (5mb Allowed)
    if ($img_size > $allowed_img_size) {
        $upload_error = 1;
        $error .= "filesize";
    }

/**** BEGIN UPLOAD *****/
// Set src image (by ext)
    if (($img_ext == "jpg" ) || ($img_ext == "jpeg")) {
        $src_img = imagecreatefromjpeg($img_tmp);
    } elseif ($img_ext == "png") {
        $src_img = imagecreatefrompng($img_tmp);
    } elseif ($img_ext == "gif") {
        $src_img = imagecreatefromgif($img_tmp);
    }
// Get src image height and width
    $src_img_width = imagesx($src_img);
    $src_img_height = imagesy($src_img);
// Set "desired" height
    $new_img_height = floor($src_img_height * ($new_img_width / $src_img_width));
// Create Virtual Images
    $virtual_main_img = imagecreatetruecolor($new_img_width, $new_img_height);
// Resize source image
    imagecopyresampled($virtual_main_image, $src_img, 0, 0, 0, 0, $new_img_width, $new_img_height, $src_img_width, $src_img_height);
// Save final images
    imagejpeg($virtual_main_img, $final_main_dest);

Answer 1

结束很简单：

$ virtual_main_img是已定义的变量。

我无意中使用了＆＃34; $ virtual_main_image＆＃34;。

作品。

PHP上传和调整大小图像副本样本问题。图像保存所有黑色

1 个答案: