Question

我想确保上传的图片有尺寸。如果图片尺寸大于50，我会运行一项不允许上传的测试。这是我的代码：

if(isset($_FILES['fupload'])) {

    $filename = strtolower(($_FILES['fupload']['name']));
    $ext = substr($filename, -4);
    $filename = explode('.',$filename);
    $filename = $filename[0];
    $filename = str_shuffle($filename);

    $filename = $filename.$ext; 

    $source = $_FILES['fupload']['tmp_name'];   
    $target =  $path_to_image_directory.$filename;

    $size = getimagesize($filename);

    if( $size[0] > 20 || $size[1] > 20 ) {
        echo 'Too Large!';

    } else {
        move_uploaded_file($source, $target);

        createThumbnail($filename);

        $title= mysqli_real_escape_string($connection,$_POST['title']);
        $keyword1 = mysqli_real_escape_string($connection,$_POST['keyword1']);
        $keyword2 = mysqli_real_escape_string($connection,$_POST['keyword2']);
        $keyword3 = mysqli_real_escape_string($connection,$_POST['keyword3']);

        $Q = "INSERT INTO images (name, title, keyword1,keyword2,      keyword3)VALUES('$filename', '$title', '$keyword1','$keyword2','$keyword3')";

        if(!mysqli_query($connection, $Q)) {
            die("error inserting into pres name".mysqli_error($connection));
        }   
    }
}

我希望这条消息“太大了！”＃34;当我尝试上传大图片时，我不知道。图片上传无论有多大。我的最终目标是将大于号转换为小于符号，以确保文件具有实际尺寸。

我从stackoverflow得到了这个条件语句：

if($size[0] > 20 || $size[1] > 20) {
    echo 'Too Large!';
}

它似乎应该阻止上传，但它没有。有人可以帮我理解吗？

Answer 1

你可以使用

list($width, $height, $type, $attr) = getimagesize($_FILES["fupload"]["tmp_name"]);

if(($width>20)||($height>20)){
                $error = "Image Dimemsions Exceed Allowed Dimensions";
                return $error;
            }

希望它有所帮助;）

在条件语句php

1 个答案: