[英]Getting data from a php file using Javascript and Ajax
嗨,我正在尝试为一个个人项目创建一份调查,该项目正在从事教学自我网络开发的工作。 该调查是针对F1网站的,我希望能够向用户提出五个问题,并基于这些答案,我希望能够告诉他们最适合他们的大奖赛。
我对用户的问题是:
什么大奖赛最接近您? (我通过选择框为他们提供了选择3个大奖赛的选项)
您想参观哪些国家? (我通过选择框为他们提供了选择2个国家的选项)
您什么时候可以去参加大奖赛(我已经给他们选择了通过选择框选择三个月的选项)
你最喜欢哪个队伍? (使用选择框的一个选项)
谁是您最喜欢的司机? (使用选择框的一个选项)
到目前为止,我已经创建了一个数据库,其中包含国家,大奖赛,月份,车队和车手的表格。
我有一个Survey.php文件,该文件填充了数据库中的选择框。
所以我的问题是如何创建一个JavaScript文件,将其链接到php文件,以便它填充选择框以从用户那里获取输入并显示结果,而无需使用Ajax刷新页面?
My Survey.php
<?php
$link = mysqli_connect("localhost","student","student");
mysqli_select_db($link,"gpdb");
//question 1
$query = "SELECT * from gp";
$result = mysqli_query($link,$query);
$row = mysqli_fetch_assoc($result);
?>
<div class="Circuits">
<h1>Which Grand Prix's are closest to you<h1>
<form action="<?php $_SERVER['PHP_SELF']; ?>" method="get" >
<p>Option 1</p>
<select name="GrandPrix">
<?php do { ?>
<option value="<?php echo $row['Circuits']; ?>"><?php echo
$row['Circuits']; ?></option>
<?php } while ($row = mysqli_fetch_assoc($result)); ?>
</select>
<?php
$query = "SELECT * from gp";
$result = mysqli_query($link,$query);
$row = mysqli_fetch_assoc($result);
?>
<p>Option 2</p>
<select name="GrandPrix2">
<?php do { ?>
<option value="<?php echo $row['Circuits']; ?>"><?php echo
$row['Circuits']; ?></option>
<?php } while ($row = mysqli_fetch_assoc($result)); ?>
</select>
<?php
$query = "SELECT * from gp";
$result = mysqli_query($link,$query);
$row = mysqli_fetch_assoc($result);
?>
<p>Option 3</p>
<select name="GrandPrix3">
<?php do { ?>
<option value="<?php echo $row['Circuits']; ?>"><?php echo
$row['Circuits']; ?></option>
<?php } while ($row = mysqli_fetch_assoc($result)); ?>
</select><br />
</form>
</div>
<?php
$query = "SELECT * from place";
$result = mysqli_query($link,$query);
$row = mysqli_fetch_assoc($result);
?>
<div class="Country"
<h1>What countries would you like to visit?</h1>
<p>Country 1</p>
<select name="Country1">
<?php do { ?>
<option value="<?php echo $row['Location']; ?>"><?php echo
$row['Location']; ?></option>
<?php } while ($row = mysqli_fetch_assoc($result)); ?>
</select>
<?php
$query = "SELECT * from place";
$result = mysqli_query($link,$query);
$row = mysqli_fetch_assoc($result);
?>
<p>Country 2</p>
<select name="Country1">
<?php do { ?>
<option value="<?php echo $row['Location']; ?>"><?php echo
$row['Location']; ?></option>
<?php } while ($row = mysqli_fetch_assoc($result)); ?>
</select>
</div>
<?php
$query = "SELECT * from month";
$result = mysqli_query($link,$query);
$row = mysqli_fetch_assoc($result);
?>
<div class="month">
<h1>When are you available to go to a grand prix</h1>
<p>Month 1</p>
<select name="Month">
<?php do { ?>
<option value="<?php echo $row['monthofgp']; ?>"><?php echo
$row['Location']; ?></option>
<?php } while ($row = mysqli_fetch_assoc($result)); ?>
</select>
<?php
$query = "SELECT * from month";
$result = mysqli_query($link,$query);
$row = mysqli_fetch_assoc($result);
?>
<p>Month 2</p>
<select name="Month">
<?php do { ?>
<option value="<?php echo $row['monthofgp']; ?>"><?php echo
$row['monthofgp']; ?></option>
<?php } while ($row = mysqli_fetch_assoc($result)); ?>
</select>
<?php
$query = "SELECT * from month";
$result = mysqli_query($link,$query);
$row = mysqli_fetch_assoc($result);
?>
<p>Month 3</p>
<select name="Month">
<?php do { ?>
<option value="<?php echo $row['monthofgp']; ?>"><?php echo
$row['monthofgp']; ?></option>
<?php } while ($row = mysqli_fetch_assoc($result)); ?>
</select><br />
</div>
<div class="Driver">
<?php
$query = "SELECT * from teamName";
$result = mysqli_query($link,$query);
$row = mysqli_fetch_assoc($result);
?>
<h1>What is favourite team?</h1>
<p>Team</p>
<select name="taem">
<?php do { ?>
<option value="<?php echo $row['Team']; ?>"><?php echo
$row['Team']; ?></option>
<?php } while ($row = mysqli_fetch_assoc($result)); ?>
</select><br />
</div>
<div class="Driver">
<?php
$query = "SELECT * from driverName";
$result = mysqli_query($link,$query);
$row = mysqli_fetch_assoc($result);
?>
<h1>Who is your favourite driver?</h1>
<p>Driver</p>
<select name="taem">
<?php do { ?>
<option value="<?php echo $row['Driver']; ?>"><?php echo
$row['Driver']; ?></option>
<?php } while ($row = mysqli_fetch_assoc($result)); ?>
</select><br />
</div>
<input type="submit" />
<input type="reset" />
</form>
使用jquery验证来验证此表单...操作简单,但很难为我解释。
对于没有帖子的页面,保存此数据... 1.制作一个php函数来保存数据。.2.使用ajax / jquery调用此函数。
示例代码在这里...
$.ajax({
type: 'GET',
url: "Your Function Path/Url",
crossDomain: 'true',
success:
function (data){
// here alert your function response..
alert(data);
}
});
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