不更新SQL数据库

问题描述

出于某种原因，我的代码没有更新mySQL数据库，但它不报告任何错误。

register.php （表单）

pre $ < form class =register_formaction =action.php？do = registermethod =post >
团队名称*：< input type =textname =teamnamerequired />
Team Region *：< input type =textname =teamregionmaxlength =4required />
Team Leader *：< input type =textname =teamleadermaxlength =16required />
团队成员：< input type =textname =teammembers/>
< input name =register_submittype =submitvalue =Register/>
< / form>


action.php

 <？php 
 $ con = mysqli_connect（192.185。＃。###，######## _ reg，＃ ######， #########）; 
 if（mysqli_connect_errno（））{echo无法连接到MySQL：。 mysqli_connect_error（）;} 
 $ action = $ _GET ['do']; 
 if（$ action ==register）{
 $ teamname = $ _POST [teamname]; 
 $ teamregion = $ _POST [teamregion]; 
 $ teamleader = $ _POST [teamleader]; 
 $ teammembers = $ _POST [teammembers]; 
 $ result = mysqli_query（$ con，INSERT INTO teams（teamname，region，teamleader，teammembers，wins，loses）
 VALUES（。$ teamname。，。$ teamregion。， 。$ teamleader。，。$ teammembers。，0,0）;）; 
} 
？> 
  

任何想法为何无法正常工作？

解决方案

下面是一个准备好的语句的工作示例，它们通常用来代替 query

$ b

action.php

  $ con = new mysqli （'localhost'，'root'，''，'dachi'）;如果（mysqli_connect_errno（））{
 printf（连接失败：％s \ n，mysqli_connect_error（））; 
 
 
 exit（）; 
} 
 
 if（isset（$ _ GET ['do']）&&& $ _GET ['do'] ===register）{
 $ teamname = $ _POST [teamname]; 
 $ teamregion = $ _POST [teamregion]; 
 $ teamleader = $ _POST [teamleader]; 
 $ teammembers = $ _POST [teammembers]; 
 $ wins = 0; 
 $失去= 0; 
 
 $ stmt = $ con> prepare（INSERT INTO`teams`（`teamname`，`region`，`teamleader`，`teammembers`，`wins`，`loses`）VALUES ）（，，，，，？？？？？？）; 
 $ stmt-> bind_param（'ssssii'，$ teamname，$ teamregion，$ teamleader，$ teammembers，$ wins，$ loses）; 
 $ stmt-> execute（）; 
 $ stmt-> close（）; 
} 
  

register.php

 < form class =register_formaction =action.php？do = registermethod =post> 
团队名称*：< input type =textname =teamnamerequired /> 
 Team Region *：< input type =textname =teamregionmaxlength =4required /> 
 Team Leader *：< input type =textname =teamleadermaxlength =16required /> 
团队成员：< input type =textname =teammembers/> 
< input name =register_submittype =submitvalue =Register/> 
< / form> 
  

For some reason my code isn't updating mySQL database, but it isn't reporting any errors.

register.php (form)

        <form class="register_form" action="action.php?do=register" method="post">
            Team Name*: <input type="text" name="teamname" required />
            Team Region*: <input type="text" name="teamregion" maxlength="4" required />
            Team Leader*: <input type="text" name="teamleader" maxlength="16" required />
            Team Members: <input type="text" name="teammembers"  />
            <input name="register_submit" type="submit" value="Register" />
        </form>

action.php

    <?php
        $con=mysqli_connect("192.185.#.###","########_reg","#######","#########");
        if (mysqli_connect_errno()) {echo "Failed to connect to MySQL: " . mysqli_connect_error();}
            $action = $_GET['do'];
                if($action=="register") {
                    $teamname = $_POST["teamname"];
                    $teamregion = $_POST["teamregion"];
                    $teamleader = $_POST["teamleader"];
                    $teammembers = $_POST["teammembers"];
                        $result = mysqli_query($con, "INSERT INTO teams (teamname, region, teamleader, teammembers, wins, loses)
                        VALUES (" . $teamname . "," . $teamregion . "," . $teamleader . "," . $teammembers . ",0,0);");
                }
    ?>

Any ideas why this isn't working correctly?

解决方案

Here's a working sample with prepared statements, that are "better" to use generally instead of query

action.php

$con = new mysqli('localhost', 'root', '', 'dachi');

if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}

if (isset($_GET['do']) && $_GET['do'] === "register") {
    $teamname = $_POST["teamname"];
    $teamregion = $_POST["teamregion"];
    $teamleader = $_POST["teamleader"];
    $teammembers = $_POST["teammembers"];
    $wins = 0;
    $loses = 0;

    $stmt = $con->prepare("INSERT INTO `teams` (`teamname`,`region`,`teamleader`,`teammembers`,`wins`,`loses`) VALUES (?,?,?,?,?,?)");
    $stmt->bind_param('ssssii', $teamname, $teamregion, $teamleader, $teammembers, $wins, $loses);
    $stmt->execute();
    $stmt->close();
}

register.php

<form class="register_form" action="action.php?do=register" method="post">
    Team Name*: <input type="text" name="teamname" required />
    Team Region*: <input type="text" name="teamregion" maxlength="4" required />
    Team Leader*: <input type="text" name="teamleader" maxlength="16" required />
    Team Members: <input type="text" name="teammembers"  />
    <input name="register_submit" type="submit" value="Register" />
</form>

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