Question

我正在尝试将数据从输入发送到我的sqldata基础。以下是尝试将信息发送到数据库的编码。它没有出现在数据库中;编码出了什么问题？

    <?php
$con=mysqli_connect(/*hostname*/"localhost",
                    /*username*/"user",
                    /*password*/"pass",
                    /*database name*/"dbase");

// Check connection
if (mysqli_connect_errno()) {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
}

$a =  mysqli_real_escape_string($con, $_POST['a']);
$b =  mysqli_real_escape_string($con, $_POST['b']);
$c =  mysqli_real_escape_string($con, $_POST['b']);
$d =  mysqli_real_escape_string($con, $_POST['d']);
$e =  mysqli_real_escape_string($con, $_POST['e']);
$f =  mysqli_real_escape_string($con, $_POST['f']);
$g = 10 + ($e - $f);

mysql_query("INSERT INTO 'mensscore', (Name, Club, Level, App, Score);
    VALUES ('".$a."',
            '".$b."',
            '".$c."',
            '".$d."'
            '".$g."')");
    ?>

Answer 1

你正在混合mysql和mysqli。变化：

mysql_query("INSERT INTO 'mensscore', (Name, Club, Level, App, Score);
    VALUES ('".$a."',
            '".$b."',
            '".$c."',
            '".$d."'
            '".$g."')");

要：

mysqli_query($con, "INSERT INTO `mensscore` (Name, Club, Level, App, Score)
    VALUES ('$a',
            '$b',
            '$c',
            '$d',
            '$g'
    );");

另请参阅How can I prevent SQL injection in PHP和PHP: mysqli_stmt - Manual，因为使用POST并不总是安全的，因为人们可以进行SQL注入。

Answer 2

您在查询中有一些错误。首先使用mysqli_query()，因为你在使用mysqli。删除不需要的，和;从查询中试试，

mysqli_query($con,"INSERT INTO 'mensscore' (Name, Club, Level, App, Score)
    VALUES ('$a',
            '$b',
            '$c',
            '$d'
            '$g')");

Answer 3

试试这个

mysqli_query($con,"INSERT INTO mensscore (Name, Club, Level, App, Score)VALUES ('".$a."',
        '".$b."',
        '".$c."',
        '".$d."',
        '".$g."')");

Answer 4

试试这个

mysqli_query("INSERT INTO mensscore  (Name, Club, Level, App, Score)
    VALUES ('{$a}','{$b}','{$c}','{$d}','{$g}'");

Answer 5

试试这个

<?php
    $con=mysqli_connect("localhost","user","pass","dbase");

    // Check connection
    if (mysqli_connect_errno()) {
      echo "Failed to connect to MySQL: " . mysqli_connect_error();
    }

    $a =  mysqli_real_escape_string($con, $_POST['a']);
    $b =  mysqli_real_escape_string($con, $_POST['b']);
    $c =  mysqli_real_escape_string($con, $_POST['b']);
    $d =  mysqli_real_escape_string($con, $_POST['d']);
    $e =  mysqli_real_escape_string($con, $_POST['e']);
    $f =  mysqli_real_escape_string($con, $_POST['f']);
    $g = 10 + ($e - $f);
    $sql = "INSERT INTO mensscore(Name, Club, Level, App, Score)VALUES('".$a."','".$b."','".$c."','".$d."''".$g."')";
    $result = $con->query($sql) or die("Error executing query" . mysqli_error($conn));
        ?>

Answer 6

不要引用表名mensscore
在VALUES关键字

MYSQL没有从PHP接收数据

6 个答案: