PDO语句没有插入

Question

这个PDO插入语句没有任何理由在MySQL中插入吗？

$stmt = $dbh->prepare("INSERT INTO training courseId = :postCourse, title = :postCourseName, startDate = :postStartDate, endDate = :postEndDate"); 
$stmt->bindParam(':postCourse', $postCourse); 
$stmt->bindParam(':postCourseName', $postCourseName); 
$stmt->bindParam(':postStartDate', $postStartDate); 
$stmt->bindParam(':postEndDate', $postEndDate); 
$stmt->execute(); 

我没有得到任何错误。一切对我来说都是正确的。

Answer 1

您的查询应该是：

INSERT INTO training (courseId, title, startDate, endDate) VALUES 
(:postCourse, :postCourseName, :postStartDate, :postEndDate); 

或者：

INSERT INTO training 
SET courseId = :postCourse, 
    title = :postCourseName, 
    startDate = :postStartDate, 
    endDate = :postEndDate 

见http://dev.mysql.com/doc/refman/5.5/en/insert.html

您应该能够检查错误是这样的：

$stmt = $dbh->prepare(...); 
if (!$stmt) { 
    var_dump($dbh->errorInfo()); 
} 

或者：

$stmt->execute(); 
var_dump($stmt->errorInfo()); 

或者：

$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); 
... 

参见：http://www.php.net/manual/en/pdo.error-handling.php

Answer 2

是的，你错过了SET：

$stmt = $dbh->prepare("INSERT INTO training SET courseId = :postCourse, title = :postCourseName, startDate = :postStartDate, endDate = :postEndDate"); 

Answer 3

$stmt = $dbh->prepare("INSERT INTO training (courseId, title, startDate, endDate) VALUES (:postCourse, :postCourseName, :postStartDate, :postEndDate"); 

检查INSERT语法http://dev.mysql.com/doc/refman/5.1/en/insert.html