日期未发送到mysql

问题描述

我看到无处不在，但似乎找不到正确的代码。我有一个html表单从用户使用日期输入的日期。

index.html：

 < form name =myformaction =process.phpmethod =POST> 
日期：< input type =datename =date>< br> 
< input type =submitvalue =Submit> 
< / form> 
  

Process.php：

 $ link = mysqli_connect（my.sql.server，username，psswd，database_name）
 $ date = $ _POST ['date']; 
 mysqli_query（$ link，INSERT INTO visit_exclude_dates（date）VALUES（CAST $ date AS DATE））; 
  

从表单中输出$ date的值为yyyy-mm-dd格式，我能够成功写入数据库。我的问题是当我读数据库时，日期显示为0000-00-00。所以我假设这个问题是这样的：

  mysqli_query（$ link，INSERT INTO visit_exclude_dates（date）VALUES $ date AS DATE））; 
  

编辑：
我想要注意的是visit_exclude_dates是我的表的名称

解决方案

尝试在查询中的date字段周围添加tick。如果您确定输入是Ymd格式，那么很可能会解决您的问题：

  $ date = date YMD，strtotime（$ _ POST ['date']））; 
 $ result = mysqli_query（$ link，INSERT INTO visit_exclude_dates（date）VALUES（'{$ date}'））; 
 
 if（！$ result）{
 echoError：。 $ link->错误）; 
 die（）; 
} 
 
 $ result-> close（）; 
 $ link-> close（）; 
  

I have looked everywhere, but I can't seem to find the correct code. I have an html form take in a date from the user using the "date" input.

index.html:

<form name="myform" action="process.php" method="POST">
     Date: <input type="date" name="date"><br>
     <input type="submit" value="Submit">
</form>

Process.php:

$link=mysqli_connect("my.sql.server", "username", "psswd", "database_name")
$date = $_POST['date'];
mysqli_query($link,"INSERT INTO visit_exclude_dates (date) VALUES (CAST $date AS DATE)");

the value of $date when it comes out of the form is in the yyyy-mm-dd format, and I am able to successfully write to the database. My problem is that when I read the database, the date is being shown as 0000-00-00. So I assume that the problem is with this line:

mysqli_query($link,"INSERT INTO visit_exclude_dates (date) VALUES (CAST $date AS DATE)");

EDIT:I would like to note that visit_exclude_dates is the name of my table

解决方案

Try adding ticks around the date field in your query. Provided you're SURE the input is Y-m-d format, It'll most likely fix your issue:

$date = date("Y-m-d", strtotime($_POST['date']));
$result = mysqli_query($link,"INSERT INTO visit_exclude_dates (date) VALUES ('{$date}')");

if(!$result) {
    echo "Error: " . $link->error);
    die();
}

$result->close();
$link->close();

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