Question

我想更改错误代码SQLSTATE [23000]：完整性约束违规：1062重复条目＆＃39; xx@yahoo.com'关键词＆＃39;电子邮件＆＃39;消息变成类似＆＃34;错误电子邮件已在使用＆＃34;

create.php

<?php
require_once 'dbconfig.php';

if ($_POST) {

    $fname = $_POST['fname'];
    $lname = $_POST['lname'];
    $contactnum = $_POST['contactnum'];
    $email = $_POST['email'];
    $pass = $_POST['pass'];
    $lang = $_POST['lang'];

    try {

        $stmt = $db_con->prepare("INSERT INTO tbluser(fname,lname,contactnum,email,pass,lang) VALUES(:ufname,:ulname,:ucontact,:uemail,:upass,:ulang)");
        $stmt->bindParam(":ufname", $fname);
        $stmt->bindParam(":ulname", $lname);
        $stmt->bindParam(":ucontact", $contactnum);
        $stmt->bindParam(":uemail", $email);
        $stmt->bindParam(":upass", $pass);
        $stmt->bindParam(":ulang", $lang);

        if ($stmt->execute()) {
            echo "Successfully Added";
        } else {
            echo "Query Problem";
        }

    } catch(PDOException $e) {
        echo $e->getMessage();
    }
}
?>

我尝试添加类似这样的内容

if (mysql_errno() == 1062) {

    echo"error email already in use!";
}

但无法使其发挥作用。谢谢你的帮助，我还是php的新手。有人可以告诉我如何使用PDO吗？

addform.php

<style type="text/css">
    #dis{
        display:none;
    }
</style>

<div id="dis">
    <!-- here message will be displayed -->
</div>

<form method='post' id='emp-SaveForm' action="#">

    <table class='table table-bordered'>

        <tr>
            <td>First Name</td>
            <td><input type='text' name='fname' class='form-control'  required /></td>
        </tr>

        <tr>
            <td>Last Name</td>
            <td><input type='text' name='lname' class='form-control'  required></td>
        </tr>

        <tr>
            <td>Contact Number</td>
            <td><input type='number' name='contactnum' class='form-control'  required></td>
        </tr>

         <tr>
            <td>Email</td>
            <td><input type='email' name='email' class='form-control' required /></td>
        </tr>

         <tr>
            <td>Password</td>
            <td><input type="password" name='pass' class='form-control'  required /></td>
        </tr>

         <tr>
            <td>Language</td>
            <td><input type='text' name='lang' class='form-control'  required /></td>
        </tr> 
        <tr>
            <td colspan="2">
            <button type="submit" class="btn btn-primary" name="btn-save" id="btn-save">
            <span class="glyphicon glyphicon-plus"></span> Save this User
            </button>  
            </td>
        </tr>

    </table>
</form>

Answer 1

mysql_errno是已弃用的mysql扩展的一部分 - 您正在使用PDO，因此您还需要使用它来检查错误：

if ($stmt->execute()) {
    echo "Successfully Added";
} else {
    if ($stmt->errorCode() == 1062) {
        # Here ^
        echo "error email already in use!";
    } else {
        echo "some other problem...";
    }
}

Answer 2

错误可能会出现在事件/错误日志中，并且如果您试图找到合法错误会导致不必要的噪音，所以如果可以，我会避免依赖它们。而是尝试：

IF (SELECT 1 = 1 FROM users WHERE email=?) THEN
BEGIN
    SELECT 0 AS Result--signals already exists to the application
END;
ELSE
BEGIN
    INSERT INTO users(columns) VALUES(values);
    SELECT LAST_INSERT_ID() AS Result;
END;
END IF;

或者那些东西。

如何更改默认错误消息代码

2 个答案: