Question

这是我在MySQL中作为后端和PHP作为前端插入数据的代码正确建立连接但是插入查询不起作用，它也不会根据插入查询后的结尾处的其他条件显示任何错误它也没有到达$ _POST ['submit']内部。

<html>
<head></head>
<title></title>
<body>
    <form type="post" name="addimage" enctype="multipart/form-data" >
     Album Name<input type="text" name="albumname">
    <input type="file" name="filesToUpload" id="filesToUpload" multiple=""/>
    </p>
       Client Name<input type="text" name="clientname">
       <br>Location<input type="text" name="location">
        <button type="submit" value="submit" name="submit" id="submit">Submit</button>
</body>
</form>
</html>
<?php
 $servername = "localhost";
 $username = "root";
 $password = "";
 $dbname = "apostrophe";
 $con=mysqli_connect("localhost","root","","apostrophe");
 mysqli_select_db($con,"apostrophe");
if(isset($_POST['submit']))
{
echo "reached";
$albumname=$_REQUEST['albumname'];
$images=$_REQUEST['filesToUpload'];
$client=$_REQUEST['clientname'];
$loc=$_REQUEST['loc'];
echo "reached submit";
$sql="INSERT INTO album(albumname,images,clientname,location)VALUES('$albumname','$albumname','$client','$loc')";
echo "reached down";
if($con->query($sql)===TRUE)
{
 echo "Success";
}
else
echo "Failed";
}
?>

Answer 1

原始代码中存在相当多的错误（形式跨越body，表单方法的错误声明，头部之外的标题等）并且没有尝试处理实际上传的图像。希望下面的内容应该让你完成文件处理工作的开头 - 虽然毫无疑问我也错过了一些东西' - ）

<?php
    $status='';
    /* Might as well test that all necessary fields are included in form submission */
    if( isset( $_POST['submit'], $_POST['albumname'], $_POST['clientname'], $_POST['location'] ) ){

        /* only need to declare the db connection if the variables are set */
        $servername = "localhost";
        $username = "root";
        $password = "";
        $dbname = "apostrophe";

        /* create the db conn */
        $con=mysqli_connect("localhost","root","","apostrophe");

        /* at least some basic filtering if you intend to place user submitted content directly in the sql */
        $albumname=strip_tags( filter_input( INPUT_POST,'albumname',FILTER_SANITIZE_STRING ) );
        $client=strip_tags( filter_input( INPUT_POST,'clientname',FILTER_SANITIZE_STRING ) ); 
        $loc=strip_tags( filter_input( INPUT_POST,'location',FILTER_SANITIZE_STRING ) );



        /* handle file uploads */
        $fieldname='filesToUpload';

        foreach( $_FILES[$fieldname]['name'] as $i => $name ) {
            if( !empty( $_FILES[$fieldname]['tmp_name'][$i] ) ) {

                $filename = $_FILES[$fieldname]['name'][$i];
                $size = $_FILES[$fieldname]['size'][$i];
                $type = $_FILES[$fieldname]['type'][$i];
                $tmpfile  = $_FILES[$fieldname]['tmp_name'][$i];

                /* copy file to final destination - this is not complete!! */
                $bytes=move_uploaded_file( $tmpfile, '/path/to/final/directory/'.$filename );

                /* to debug uncomment below */
                #echo $filename,$tmpfile,$size,$type;
            }
        }

        /* prepare and execute sql */
        $sql="INSERT INTO `album` ( `albumname`, `images`, `clientname`, `location` ) VALUES ( '$albumname', '$albumname', '$client', '$loc' )";

        /* set status variable to be displayed under form */
        $status=( $con->query( $sql )===TRUE ) ?  "Success" : "Failed";

    } else {
        $status='bad foo';
        $status=print_r( $_POST, true );
    }
?>
<html>
    <head>
        <title>File upload and database inserts</title>
    </head>
    <body>
        <form method="post" name="addimage" enctype="multipart/form-data" >
            Album Name<input type="text" name="albumname">
            <input type="file" name="filesToUpload[]" id="filesToUpload" multiple=""/>

            Client Name<input type="text" name="clientname">
            <br>
            Location<input type="text" name="location">
            <button type="submit" value="submit" name="submit" id="submit">Submit</button>
        </form><?php echo $status; ?>
    </body>
</html>

Answer 2

更改您的行：
mydata <- structure(list(A0AUT = c("no_change", "no_change", "no_change", "no_change", "no_change", "no_change"), A0AYT = c("no_change", "no_change", "no_change", "up", "up", "up"), A0AZT = c("no_change", "down", "no_change", "no_change", "no_change", "no_change"), A0B2T = c("no_change", "no_change", "no_change", "no_change", "no_change", "no_change"), A0B3T = c("no_change", "no_change", "no_change", "up", "no_change", "no_change")), .Names = c("A0AUT", "A0AYT", "A0AZT", "A0B2T", "A0B3T"), class = "data.frame", row.names = c("100130426", "100133144", "100134869", "10357", "10431", "136542"))
到
<form type="post" name="addimage" enctype="multipart/form-data">

插入查询不适用于MySQL，PHP

2 个答案: