如何在wordpress中使用ajax使用php和Json显示数据库列
我是新使用ajax的,我有一个代码可以从wordpress显示数据库列中的一些信息。 我使用以下PHP代码连接数据库并创建JSON文件:如何在wordpress中使用ajax使用php和Json显示数据库列,php,jquery,json,ajax,wordpress,Php,Jquery,Json,Ajax,Wordpress,我是新使用ajax的,我有一个代码可以从wordpress显示数据库列中的一些信息。 我使用以下PHP代码连接数据库并创建JSON文件: <?php $username = $_REQUEST['username']; $password = $_REQUEST['password']; if (isset($username) && isset($password)) { //CONEXION $host="localhost"; $u
<?php
$username = $_REQUEST['username'];
$password = $_REQUEST['password'];
if (isset($username) && isset($password)) {
//CONEXION
$host="localhost";
$user="DB_Username";
$pass="DB_Password";
$dbname="DB_Name";
//Conexion
$conexion = mysqli_connect($host, $user, $pass,$dbname)
or die("unexpected error");
//gWe made the search
$sql = "SELECT * FROM Column WHERE A_Login='$username'";
mysqli_set_charset($conexion, "utf8");
if(!$result = mysqli_query($conexion, $sql)) die();
$clients = array();
$num_result = mysqli_num_rows($result);
if ($num_result == 0) {
$clients = array("error" => "true", "msg" => "We can't found this user", "data" => $username);
} else {
while($row = mysqli_fetch_array($result))
{
$id=$row['ID'];
$Name=$row['Name'];
if ($row['A_Login'] == $username && $row['A_Password'] == $password){
$clients[] = array('id'=> $id, 'Name'=> $Name);
} else {
$clients[] = array('error'=> "true", "msg" => "Incorrect data");
}
}
}
$close = mysqli_close($conexion)
or die("Unespected error with DB");
}
else {
$clients = array("error" => "true", "msg" => "You must fill all fields", "username" => $username);
}
//We build the JSON
$json_string = json_encode($clients);
echo $json_string;
?>
在wordpress页面中,我有以下代码,我构建了一个表单,如果用户单击submit按钮,则调用doLogin()
函数doLogin(){
data={username:jQuery(“#user”).val(),password:jQuery(“#pass”).val()}
控制台日志(数据);
jQuery.ajax({
类型:“POST”,
url:“Mywebsiteurl.php”,
数据:数据,
beforeSend:function(){
},
成功:功能(数据){
控制台日志(数据);
//var arr=JSON.parse(数据);
//$('#forma').html(数据);
},
错误:函数(XMLHttpRequest、textStatus、errorshown){
警报(“错误”);
console.log(textStatus);
console.log(错误抛出);
}
});
}
我需要在
中显示一种使用GN html的列表,例如:
Id:值Id
名称:值名称
还有更多信息
当我尝试使用$('#forma').html(数据)在我的网站上打印所需信息时代码>我获得错误或只是一个空白
我怎样才能修好它?谢谢。WordPress有特定的方法来启用ajax请求
// registering ajax request for Logged users
add_action( 'wp_ajax_my_action', 'my_action_callback' );
// registering ajax request also for public area
add_action( 'wp_ajax_nopriv_my_action', 'my_action_callback' );
function my_action_callback()
{
// Your code here
wp_die(); // this is required to terminate immediately and return a proper response
}
称之为:
jQuery(document).ready(function($) {
var data = {action: "my_action", username: jQuery("#user").val(), password: jQuery("#pass").val()}
jQuery.ajax({
url: '/wp-admin/admin-ajax.php',
data: data,
method: 'POST',
success: function(response) {
console.log(response);
},
error: function(a,b,c) {
}
});
});
来源:WordPress有特定的方法来启用ajax请求
// registering ajax request for Logged users
add_action( 'wp_ajax_my_action', 'my_action_callback' );
// registering ajax request also for public area
add_action( 'wp_ajax_nopriv_my_action', 'my_action_callback' );
function my_action_callback()
{
// Your code here
wp_die(); // this is required to terminate immediately and return a proper response
}
称之为:
jQuery(document).ready(function($) {
var data = {action: "my_action", username: jQuery("#user").val(), password: jQuery("#pass").val()}
jQuery.ajax({
url: '/wp-admin/admin-ajax.php',
data: data,
method: 'POST',
success: function(response) {
console.log(response);
},
error: function(a,b,c) {
}
});
});
来源:在WordPress中,我们需要将ajax钩子挂接到您的check\u user函数
add_action('wp_ajax_your_action_from_js', 'your_function');
//Using ajax for non-logged users as well (PUBLIC)
add_action('wp_ajax_nopriv_your_action_from_js', 'your_function');
检查下面的代码,了解它是如何根据您的上下文完成的
在functions.php中
function check_user() {
$username = $_REQUEST['username'];
$password = $_REQUEST['password'];
if (isset($username) && isset($password)) {
//CONEXION
$host="localhost";
$user="DB_Username";
$pass="DB_Password";
$dbname="DB_Name";
//Conexion
$conexion = mysqli_connect($host, $user, $pass,$dbname)
or die("unexpected error");
//gWe made the search
$sql = "SELECT * FROM Column WHERE A_Login='$username'";
mysqli_set_charset($conexion, "utf8");
if(!$result = mysqli_query($conexion, $sql)) die();
$clients = array();
$num_result = mysqli_num_rows($result);
if ($num_result == 0) {
$clients = array("error" => "true", "msg" => "We can't found this user", "data" => $username);
} else {
while($row = mysqli_fetch_array($result))
{
$id=$row['ID'];
$Name=$row['Name'];
if ($row['A_Login'] == $username && $row['A_Password'] == $password){
$clients[] = array('id'=> $id, 'Name'=> $Name);
} else {
$clients[] = array('error'=> "true", "msg" => "Incorrect data");
}
}
}
$close = mysqli_close($conexion)
or die("Unespected error with DB");
}
else {
$clients = array("error" => "true", "msg" => "You must fill all fields", "username" => $username);
}
//We build the JSON
$json_string = json_encode($clients);
echo $json_string;
}
add_action('wp_ajax_check_user', 'check_user');
//Using ajax for non-logged users as well (PUBLIC)
add_action('wp_ajax_nopriv_check_user', 'check_user');
在JS文件中
在脚本中,动作与您的\u来自\u js的\u动作相关。因此,需要采取行动来了解ajax的作用。在本例中,它执行我们的检查\u user,并返回适当的值
<script type="text/javascript">
function doLogin(){
data = {action: 'check_user', username: jQuery("#user").val(), password: jQuery("#pass").val()}
console.log(data);
jQuery.ajax({
type: "POST",
url: ajax_url,
data: data,
beforeSend: function(){
},
success: function(data){
console.log(data);
//var arr = JSON.parse(data);
//$('#forma').html(data);
},
error: function(XMLHttpRequest, textStatus, errorThrown) {
alert("Error");
console.log(textStatus);
console.log(errorThrown);
}
});
}
</script>
函数doLogin(){
data={action:'check#user',用户名:jQuery(#user”).val(),密码:jQuery(#pass”).val()}
控制台日志(数据);
jQuery.ajax({
类型:“POST”,
url:ajax\uURL,
数据:数据,
beforeSend:function(){
},
成功:功能(数据){
控制台日志(数据);
//var arr=JSON.parse(数据);
//$('#forma').html(数据);
},
错误:函数(XMLHttpRequest、textStatus、errorshown){
警报(“错误”);
console.log(textStatus);
console.log(错误抛出);
}
});
}
参考简单AJAX表单:
抄本参考:在WordPress中,我们需要将ajax钩子挂接到您的check\u user函数
add_action('wp_ajax_your_action_from_js', 'your_function');
//Using ajax for non-logged users as well (PUBLIC)
add_action('wp_ajax_nopriv_your_action_from_js', 'your_function');
检查下面的代码,了解它是如何根据您的上下文完成的
在functions.php中
function check_user() {
$username = $_REQUEST['username'];
$password = $_REQUEST['password'];
if (isset($username) && isset($password)) {
//CONEXION
$host="localhost";
$user="DB_Username";
$pass="DB_Password";
$dbname="DB_Name";
//Conexion
$conexion = mysqli_connect($host, $user, $pass,$dbname)
or die("unexpected error");
//gWe made the search
$sql = "SELECT * FROM Column WHERE A_Login='$username'";
mysqli_set_charset($conexion, "utf8");
if(!$result = mysqli_query($conexion, $sql)) die();
$clients = array();
$num_result = mysqli_num_rows($result);
if ($num_result == 0) {
$clients = array("error" => "true", "msg" => "We can't found this user", "data" => $username);
} else {
while($row = mysqli_fetch_array($result))
{
$id=$row['ID'];
$Name=$row['Name'];
if ($row['A_Login'] == $username && $row['A_Password'] == $password){
$clients[] = array('id'=> $id, 'Name'=> $Name);
} else {
$clients[] = array('error'=> "true", "msg" => "Incorrect data");
}
}
}
$close = mysqli_close($conexion)
or die("Unespected error with DB");
}
else {
$clients = array("error" => "true", "msg" => "You must fill all fields", "username" => $username);
}
//We build the JSON
$json_string = json_encode($clients);
echo $json_string;
}
add_action('wp_ajax_check_user', 'check_user');
//Using ajax for non-logged users as well (PUBLIC)
add_action('wp_ajax_nopriv_check_user', 'check_user');
在JS文件中
在脚本中,动作与您的\u来自\u js的\u动作相关。因此,需要采取行动来了解ajax的作用。在本例中,它执行我们的检查\u user,并返回适当的值
<script type="text/javascript">
function doLogin(){
data = {action: 'check_user', username: jQuery("#user").val(), password: jQuery("#pass").val()}
console.log(data);
jQuery.ajax({
type: "POST",
url: ajax_url,
data: data,
beforeSend: function(){
},
success: function(data){
console.log(data);
//var arr = JSON.parse(data);
//$('#forma').html(data);
},
error: function(XMLHttpRequest, textStatus, errorThrown) {
alert("Error");
console.log(textStatus);
console.log(errorThrown);
}
});
}
</script>
函数doLogin(){
data={action:'check#user',用户名:jQuery(#user”).val(),密码:jQuery(#pass”).val()}
控制台日志(数据);
jQuery.ajax({
类型:“POST”,
url:ajax\uURL,
数据:数据,
beforeSend:function(){
},
成功:功能(数据){
控制台日志(数据);
//var arr=JSON.parse(数据);
//$('#forma').html(数据);
},
错误:函数(XMLHttpRequest、textStatus、errorshown){
警报(“错误”);
console.log(textStatus);
console.log(错误抛出);
}
});
}
参考简单AJAX表单:
法典参考:信息是来自其他数据库还是WordPress数据库?信息是来自其他数据库还是WordPress数据库??