使用mysql和php将数据插入两个mysql表

我有两张名为“学生”和“入学”的桌子。我想同时在两个表中插入准入编号，以便在“学生”表中，它是外键，而在“准入”表中，它是主键。“学生tbl”的主键为“标准索引” 我正在使用一个html表单。 我写的代码输出了一个错误。感谢您提前回复

这是密码

<?php

$manzu =mysqli_connect("localhost","root","MANZu1992", "cdms");

// Check connection
if (!$manzu) {
    echo "Failed to connect to MySQL: " . mysqli_connect_error();
    echo "Please Check your connection. We were unable to connect you to the desired site.";
}

if (isset($_POST['submit'])) {
    $identification = mysqli_real_escape_string($manzu, $_POST['iddd']);
    $National_Number = mysqli_real_escape_string($manzu, $_POST['national_Numberr];


    $sql = "INSERT INTO students_tbl (std_index,std_national_number) 
    VALUES ('$identification','$National_Number')";

    $sql = "INSERT INTO admission (Admission_Number)VALUES($National_Number)";

    if (!mysqli_query($manzu,$sql)) {
        die('Error: ' . mysqli_error($manzu));
    }ELSE {
        die ('Thank you for registering');
    }
}

?>

您缺少结束括号和引号
在覆盖
$sql

<?php    
$manzu =mysqli_connect("localhost","root","MANZu1992", "cdms");
if (!$manzu) {
    echo "Failed to connect to MySQL: " . mysqli_connect_error();
    echo "Please Check your connection. We were unable to connect you to the desired site.";
}    
if (isset($_POST['submit'])) {
    $identification = mysqli_real_escape_string($manzu, $_POST['iddd']);
    $National_Number = mysqli_real_escape_string($manzu, $_POST['national_Numberr']);
    $sql = "INSERT INTO students_tbl (std_index,std_national_number)  VALUES ('$identification','$National_Number')";
    mysqli_query($manzu,$sql);
    $sql = "INSERT INTO admission (Admission_Number)VALUES($National_Number)";  
    if (!mysqli_query($manzu,$sql)) {
        die('Error: ' . mysqli_error($manzu));
    }else {
        die ('Thank you for registering');
    }
}
?>

$National\u Number=mysqli\u real\u escape\u string（$manzu，$\u POST['National\u Numberr]；
应该是
$National\u Number=mysqli\u real\u escape\u string（$manzu，$\u POST['National\u Numberr']）；
你好，matt，我已经包含了最后一个括号的结束语“）”但问题是它没有将学生索引插入到“students_tbl.”在
$sql=“插入students_tbl（std_index，std_national_number）值（“$identification”，“$national_number”）”之后，
put
mysqli_查询（$manzu，$sql）
在覆盖它之前，您没有执行
$sql
。