我正在研究site。如果您选择城市“卡拉奇”，它会显示结果。我想过滤结果。我添加了过滤器选项。我正在寻找与数据库交互的方法，以便在选择过滤器时结果发生变化。请指导。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<meta name="description" content="">
<meta name="author" content="">
<link rel="icon" href="../../favicon.ico">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://ajax.googleapis.com/ajax/libs/jqueryui/1.9.2/themes/smoothness/jquery-ui.css">
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.9.2/jquery-ui.min.js"></script>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap-theme.min.css">
<!-- Latest compiled and minified JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<title>Tuition Teacher</title>
<!-- Custom styles for this template -->
<link href="sticky-footer-navbar.css" rel="stylesheet">
<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
<style>
.navbar-nav{
float:right;
}
#slider-range, #slider-range2 {
width:300px;
margin-top:10px;
}
#slider-range2.ui-slider-horizontal {
border: 0 none;
}
#slider-range2.ui-slider-horizontal .ui-slider-range, #slider-range2.ui-slider-horizontal .ui-slider-handle {
background: url("http://unbug.ru/examples/jquery/slider/slide.png") repeat scroll 0 0 transparent;
}
#slider-range2.ui-slider-horizontal .ui-slider-range {
background-position: 0 -42px;
background-repeat: repeat-x;
height: 21px;
}
#slider-range2.ui-slider-horizontal .ui-slider-handle {
background-position: 0 0;
background-repeat: no-repeat;
border: 0 none;
height: 21px;
top: 0;
width: 21px;
}
#slider-range2.ui-slider-horizontal .ui-slider-handle:focus {
outline: 0 none;
}
#slider-range2.ui-slider-horizontal .ui-slider-handle + .ui-slider-handle {
background-position: -21px 0;
}
</style>
<script>
$(function() {
var availableTags = [
"Lahore",
"Karachi",
"Islamabad",
"Rawalpindi",
"Faisalabad",
"Multan",
"Gujranwala",
"Quetta",
"Peshawar",
"Hyderabad",
"Sialkot"
];
$( "#city" ).autocomplete({
source: availableTags
});
});
</script>
<script>
$(document).ready(function() {
$(function() {
$( "#slider-range, #slider-range2" ).slider({
range: true,
min: 15,
max: 100,
values: [15, 100 ],
slide: function( event, ui ) {
$( "#amount" ).val(ui.values[ 0 ] + " - $" + ui.values[ 1 ] );
}
});
$( "#amount" ).val( "$" + $( "#slider-range" ).slider( "values", 0 ) +
" -" + $( "#slider-range" ).slider( "values", 1 ) );
});
});
</script>
</head>
<body>
<!-- Fixed navbar -->
<nav class="navbar navbar-default navbar-fixed-top">
<div class="container">
<!--
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>^
</div>
-->
<div id="navbar" class="collapse navbar-collapse text-right">
<ul class="nav navbar-nav ">
<li ><a href="login.html">Teachers Log In </a></li>
<li><a href="signup.html">Teachers Sign Up</a></li>
<li><a href="#">Tour</a></li>
<!--Sign Up
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li role="separator" class="divider"></li>
<li class="dropdown-header">Nav header</li>
<li><a href="#">Separated link</a></li>
<li><a href="#">One more separated link</a></li>
-->
</ul>
</li>
</ul>
</div><!--/.nav-collapse -->
</div>
</nav>
<!-- Begin page content -->
<div class="container">
<div class="row">
<div class="col-md-3">
<h2>Filter</h2>
City:<br>
<input id="city" placeholder="<?php echo $_POST['city'] ?>">
<br>
Gender:<br>
<input type="radio" name="gender" value="male">Male<br>
<input type="radio" name="gender" value="female">Female<br>
<p>
<label for="amount">Age range:</label>
<input type="text" id="amount"/>
</p>
<div id="slider-range"></div>
Education:<br>
<input type="radio" name="education" value="high school">High School<br>
<input type="radio" name="education" value="intermediate">Intermediate<br>
<input type="radio" name="education" value="professional degree">Professional Degree<br>
</div>
<div class="col-md-9">
<h2>Search Results</h2>
<?php
$servername = "hidden";
$username = "hidden";
$password = "hidden";
$dbname = "hidden";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$city = $_POST["city"];
$sql = "SELECT id,full_name, email, password,full_address,city,age,contact_number,gender,education FROM users WHERE city='$city'";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo "Name:" . $row["full_name"]."<br> Email:". $row["email"]. "<br>City: " . $row["city"]. "<br>Age: " . $row["age"]. "<br>Contact Number:". $row["contact_number"]. "<br> Gender: " . $row["gender"]. "<br>Education:" . $row["education"];
echo "<br><hr>";
}
} else {
echo "0 results";
}
$conn->close();
?>
</div>
</div>
</div> <!-- Container ends -->
<footer class="footer">
<div class="container">
<div class="row">
<p class="text-muted text-left col-md-6">Copyright 2015. All Rights Reserved.</p>
<p class="text-muted text-right col-md-6">Facebook - Twitter - LinkedIn.</p>
</div>
</div>
</footer>
<!-- Bootstrap core JavaScript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="dropdown.js"></script>
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
<script src="ie10-viewport-bug-workaround.js"></script>
</body>
</html>
答案 0 :(得分：0)
使用ajax。这项技术可以让您：
更新网页而不重新加载页面。
在页面加载后从服务器请求数据
在页面加载后从服务器接收数据。
将数据发送到服务器 - 在后台
一个简单的ajax语法是：
jQuery.ajax({
type: 'POST',
url: "index.php?task=testfunction",
data: '',
dataType: 'html',
beforeSend: function() {
//do function show when loading
},
success : function(result) {
//do function show when success
jQuery('#result').html(result);
}
});
在php中你必须写
<?php
function testfunction(){
echo 'This is result';
die;
}
?>