问题描述
我有这个输入字段可以读取用户在“index.PHP”中的输入
<input type="text" name="medname" id="medname" class="search-input" placeholder="Search..." name="">
<div class="result"></div>
然后这个 AJAX 实时搜索函数接收输入,将其发送到“livesearch.PHP”文件以在数据库中搜索匹配数据。然后接收一个paradee元素将其显示为搜索结果。
<script>
$(document).ready(function() {
$('.search input[type="text"]').on("keyup input",function() {
/* Get input value on change */
var inputVal = $(this).val();
var resultDropdown = $(this).siblings(".result");
if (inputVal.length) {
$.get("livesearch.PHP",{
term: inputVal
}).done(function(data) {
// display the returned data in browser
resultDropdown.html(data);
});
} else {
resultDropdown.empty();
}
});
// Set search input value on click of result item
$(document).on("click",".result p",function() {
$(this).parents(".search").find('input[type="text"]').val($(this).text());
$(this).parent(".result").empty();
});
});
</script>
livesearch.PHP
if(isset($_REQUEST["term"])){
// Prepare a select statement
$sql = "SELECT * FROM medicine WHERE mName LIKE ?";
if($stmt = MysqLi_prepare($link,$sql)){
// Bind variables to the prepared statement as parameters
MysqLi_stmt_bind_param($stmt,"s",$param_term);
// Set parameters
$param_term = $_REQUEST["term"] . '%';
// Attempt to execute the prepared statement
if(MysqLi_stmt_execute($stmt)){
$result = MysqLi_stmt_get_result($stmt);
// Check number of rows in the result set
if(MysqLi_num_rows($result) > 0){
// Fetch result rows as an associative array
while($row = MysqLi_fetch_array($result,MysqLI_ASSOC)){
echo "<p>" . $row["mName"] . "</p>";
}
} else{
echo "<p>No matches found</p>";
}
} else{
echo "ERROR: Could not able to execute $sql. " . MysqLi_error($link);
}
}
现在对于我的问题,有另一个名为“map.PHP”的页面。我需要将用户选择的“mID:药物 ID”和“mName:药物名称”发送到该页面。
我该怎么做?
解决方法
我通过使用 json 解决了这个问题。我不太明白,但它有效(不包括 CSS)。
index.php
<script>
jQuery(document).ready(function($) {
$('#keyword').on('input',function() {
var searchKeyword = $(this).val();
if (searchKeyword.length >= 1) {
$.post('search.php',{ keywords: searchKeyword },function(data) {
$('ul#content').empty().addClass('active');
$.each(data,function() {
$('ul#content').append('<li><a href="map.php?id=' + this.id + '">' + this.title + '</a></li>');
});
},"json");
} else {
$('ul#content').empty().removeClass('active');
}
});
});
</script>
index.php(输入和结果字段)
<form method="POST">
<input type="text" id="keyword" class="search-input" placeholder="Search..." name="">
<ul class="result" id="content"></ul>
</form>
搜索.php
<?php
define('DB_USER','root');
define('DB_PASSWORD','');
define('DB_SERVER','localhost');
define('DB_NAME','pharmacie');
if (!$db = new mysqli(DB_SERVER,DB_USER,DB_PASSWORD,DB_NAME)) {
die($db->connect_errno.' - '.$db->connect_error);
}
$arr = array();
if (!empty($_POST['keywords']) && strlen($_POST['keywords']) >= 1) {
$keywords = filter_var($_POST['keywords'],FILTER_SANITIZE_STRING);
$keywords = $db->real_escape_string($keywords);
$sql = "SELECT mID,mName FROM medicine WHERE mName LIKE '%".$keywords."%'";
$result = $db->query($sql) or die($mysqli->error);
if ($result->num_rows > 0) {
while ($obj = $result->fetch_object()) {
$arr[] = array('id' => $obj->mID,'title' => $obj->mName);
}
}
}
echo json_encode($arr);