文件名不能为空 [英] Filename cannot be empty

问题描述

每次点击提交按钮时，都会出现此错误.其他所有内容都提交给数据库，只有图像不提交. 警告:file_get_contents():文件名不能为空 任何的想法?这是我的代码.

I get this error everytime i hit the submit button. Everything else is submitted to the database, only the image isn't. Warning: file_get_contents(): Filename cannot be empty Any idea? Here is my code.

if(isset($_POST['consultationbutton'])){        
    $image = addslashes(file_get_contents($_FILES['selectedfile']['tmp_name'])); //SQL Injection defence!
    $image_name = addslashes($_FILES['selectedfile']['name']);
    $checkedcondition = implode(",",$_POST['skincondition']);
    $checkedproduct = implode(",",$_POST['skincareinuse']);
    $consultquery="INSERT INTO counsel(nric,dateconsulted,editableface,skincarecurrentlyinuse,skincondition,imagename) VALUES('132','$_POST[storedate]','{$image}','$checkedproduct','$checkedcondition','{$image_name}')";
    mysqli_query($dbconn,$consultquery);
   // mysqli_escape_string($dbconn,$image);
    echo $checkedcondition;
    echo $checkedproduct;
}   

<form action="BAConsult.php" enctype="multipart/form-data" method='post'>
<img id="customerface" src="#" alt="your image" class ="consultimg"></img>
 Select a file to upload: <input type="file" name="selectedfile" onchange="readURL(this);">
<input type='submit' name='consultationbutton' class='consultationbutton' value='Complete Consultation' onclick='submitclick();'>
</form>

<script>
function readURL(input) {
    if (input.files && input.files[0]) {
        var reader = new FileReader();

        reader.onload = function (e) {
            $('#customerface')
                .attr('src', e.target.result)
                .width(400)
                .height(400);
        };

        reader.readAsDataURL(input.files[0]);
    }
}
</script>

推荐答案

在$_FILES数组中，您说的是[name]=>DSC_0770.JPG[type]=> [tmp_name]=>[error]=>1[size]=>0

如果未提供tmp_name，则表示文件未上传.

If tmp_name is not given, that means the file was not uploaded.

根据1 >上载错误消息解释页面，这意味着:上载的文件超出了 upload_max_filesize 指令.

The error you're given is 1, and according to the upload error messages explained page this means: that the uploaded file exceeds the upload_max_filesize directive in php.ini.

您可以执行以下操作来解决此问题.

You can do the following to fix this.

• 找到您的php.ini文件，并增加upload_max_filesize的大小.
• 在脚本开头使用ini_set('upload_max_filesize', '20M');或您想要的任何大小.
• 在上传之前压缩图像.

• Find your php.ini file and increase the size of upload_max_filesize.
• Use ini_set('upload_max_filesize', '20M'); or whatever size you want at the start of your script.
• Compress your images before uploading.

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