Php Wordpress中带有JSON的Ajax解析器错误
我正在为一所学校做一个应用程序网站，当我试图编辑一个学生时，我被卡住了。我想让用户在和特定学生的行中单击，然后打开一个包含其数据的表单 我必须做一个ajax请求，这样我就可以调用我的php函数（在我的数据库上进行查询的函数）并将数据加载到表单中。这是我的ajax请求jQuery代码：Php Wordpress中带有JSON的Ajax解析器错误,php,jquery,json,ajax,wordpress,Php,Jquery,Json,Ajax,Wordpress,我正在为一所学校做一个应用程序网站，当我试图编辑一个学生时，我被卡住了。我想让用户在和特定学生的行中单击，然后打开一个包含其数据的表单 我必须做一个ajax请求，这样我就可以调用我的php函数（在我的数据库上进行查询的函数）并将数据加载到表单中。这是我的ajax请求jQuery代码： //When you click in the table students, in some element whose class is edit ... $("#tblAlumnos").on("cl
//When you click in the table students, in some element whose class is edit ...
$("#tblAlumnos").on("click", ".editar", function(event) {
var rowID = $(this).parents('tr').attr('id');
$.ajax({
type: 'POST',
url: '../ajax/',
data: {'table': 'alumnos', 'action': 'carga', 'ids': rowID},
dataType: 'json',
success: function(result) {
console.log(result.nombre);
},
error: function (jqXHR, exception) {
if (jqXHR.status === 0) {
alert('Not connect.\n Verify Network.');
} else if (jqXHR.status == 404) {
alert('Requested page not found. [404]');
} else if (jqXHR.status == 500) {
alert('Internal Server Error [500].');
} else if (exception === 'parsererror') {
alert('Requested JSON parse failed.');
alert(jqXHR.status);
alert(jqXHR);
} else if (exception === 'timeout') {
alert('Time out error.');
} else if (exception === 'abort') {
alert('Ajax request aborted.');
} else {
alert('Uncaught Error.\n' + jqXHR.responseText);
}
}
});
});
function cargaAlumno($ids) {
require 'db.php';
$sql = "SELECT * FROM Alumnos WHERE ID=$ids";
$result = $conexion->query($sql);
if ($result->num_rows > 0) {
$row = $result -> fetch_assoc();
$nombre = $row['Nombre'];
$apellidos = $row['Apellidos'];
$telefono = $row['Telefono'];
$usuario = $row['Usuario'];
$contrasena = $row['Contrasena'];
$result = array();
$result["nombre"] = $nombre;
$result["apellidos"] = $apellidos;
$result["telefono"] = $telefono;
$result["usuario"] = $usuario;
$result["contrasena"] = $contrasena;
ChromePhp::warn($result);
ChromePhp::warn(json_encode($result));
echo json_encode($result);
}
}
{"nombre":"Susana","telefono":"56765336","usuario":"susa"}
任何帮助都将不胜感激。提前感谢：）如果您在Wordpress中执行此操作，我将使用内置的
wpdbfunction cargaAlumno() {
global $wpdb;
$ids = $_POST['ids'];
$sql = $wpdb->get_results(
$wpdb->prepare("
SELECT *
FROM Alumnos
WHERE id = '$ids'
")
);
echo json_encode($sql);
exit();
}
add_action( 'wp_ajax_nopriv_cargaAlumno', 'cargaAlumno' );
add_action( 'wp_ajax_cargaAlumno', 'cargaAlumno' );
$("#tblAlumnos").on("click", ".editar", function(event) {
var rowID = $(this).parents('tr').attr('id');
$.ajax({
type: 'POST',
url: ajaxurl, //this is a wordpress ajaxurl hook
data: {'table': 'alumnos', 'action': 'cargaAlumno', 'ids': rowID}, // You didn't use the correct action name, it's your function name i.e. cargaAlumno
//dataType: 'json', dont need this
success: function(result) {
//Parse the data
var obj = jQuery.parseJSON(result);
console.log(obj[0].nombre); // I'm guessing nombre is your db column name
},
error: function (jqXHR, exception) {
if (jqXHR.status === 0) {
alert('Not connect.\n Verify Network.');
} else if (jqXHR.status == 404) {
alert('Requested page not found. [404]');
} else if (jqXHR.status == 500) {
alert('Internal Server Error [500].');
} else if (exception === 'parsererror') {
alert('Requested JSON parse failed.');
alert(jqXHR.status);
alert(jqXHR);
} else if (exception === 'timeout') {
alert('Time out error.');
} else if (exception === 'abort') {
alert('Ajax request aborted.');
} else {
alert('Uncaught Error.\n' + jqXHR.responseText);
}
}
});
});
如果您还需要帮助或有任何其他问题，请告诉我。不确定您是否只提供了特定的代码行，或者这就是全部内容，无论如何，这肯定是而不是您应该如何在WordPress中处理AJAX请求：
- 对于需要身份验证的操作，应该使用
；对于不需要身份验证的操作，应该使用wp\u ajax\uuwp\u ajax\u nopriv\uu - 您应该为此函数创建一个操作，并使用
admin\u url（）通过
发送请求admin ajax.php - 您应该使用
创建nonce，并使用wp\u create\u nonce（）wp\u verify\u nonce（） - 在检查
$\u服务器['HTTP\u X\u REQUESTED\u WITH']时，应限制对AJAX文件的直接访问。]
global $wpdb;
$query = "SELECT * FROM table_name";
$query_results = $wpdb->get_results($query);
<?php
$ajax_nonce = wp_create_nonce("change_to_action_name");
$ajax_link = admin_url('admin-ajax.php?action=change_to_action_name&nonce=' . $ajax_nonce);
?>
<a class="do_ajax" href="#" data-ajax_link="<?php echo ajax_link; ?>" data-ajax_param="other_param">DO AJAX</a>
<input id="param" value="" />
$('.do_ajax').click(function () {
var ajax_link = $(this).attr('data-ajax_link');
var param = $(this).attr('data-ajax_param');
if (ajax_link && param) {
$.ajax({
type: "post",
dataType: "json",
url: ajax_link,
data: {
param: param,
},
success: function (response) {
if (response.type == "success") {
/*Get/updated returned vals from ajax*/
$('#param').val(response.new_param);
console.log('ajax was successful');
} else if (response.type == "error") {
console.log('ajax request had errors');
}else{
console.log('ajax request had errors');
}
}
});
} else {
console.log('ajax not sent');
}
});
add_action("wp_ajax_change_to_action_name", "change_to_action_name");
add_action("wp_ajax_nopriv_change_to_action_name", "change_to_action_name");
function change_to_action_name()
{
if (!wp_verify_nonce($_REQUEST['nonce'], "change_to_action_name")) {
exit("You think you are smart?");
}
$param = $_REQUEST['param'];
/*php actions goes here*/
$actions_success=0;
if($actions_success){
/*Query db and update vals here*/
$new_param = "new_val";
$result['new_param'] = $new_param;
$result['type'] = "success";
}else{
$result['type'] = "error";
}
if (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
$result = json_encode($result);
echo $result;
} else {
header("Location: " . $_SERVER["HTTP_REFERER"]);
}
die();
}
<?php
$ajax_nonce = wp_create_nonce("change_to_action_name");
$ajax_link = admin_url('admin-ajax.php?action=change_to_action_name&nonce=' . $ajax_nonce);
?>
<a class="do_ajax" href="#" data-ajax_link="<?php echo ajax_link; ?>" data-ajax_param="other_param">DO AJAX</a>
<input id="param" value="" />
$('.do_ajax').click(function () {
var ajax_link = $(this).attr('data-ajax_link');
var param = $(this).attr('data-ajax_param');
if (ajax_link && param) {
$.ajax({
type: "post",
dataType: "json",
url: ajax_link,
data: {
param: param,
},
success: function (response) {
if (response.type == "success") {
/*Get/updated returned vals from ajax*/
$('#param').val(response.new_param);
console.log('ajax was successful');
} else if (response.type == "error") {
console.log('ajax request had errors');
}else{
console.log('ajax request had errors');
}
}
});
} else {
console.log('ajax not sent');
}
});
add_action("wp_ajax_change_to_action_name", "change_to_action_name");
add_action("wp_ajax_nopriv_change_to_action_name", "change_to_action_name");
function change_to_action_name()
{
if (!wp_verify_nonce($_REQUEST['nonce'], "change_to_action_name")) {
exit("You think you are smart?");
}
$param = $_REQUEST['param'];
/*php actions goes here*/
$actions_success=0;
if($actions_success){
/*Query db and update vals here*/
$new_param = "new_val";
$result['new_param'] = $new_param;
$result['type'] = "success";
}else{
$result['type'] = "error";
}
if (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
$result = json_encode($result);
echo $result;
} else {
header("Location: " . $_SERVER["HTTP_REFERER"]);
}
die();
}
干杯 您遇到了什么错误？parsererror当ajax请求从我知道的php函数@subhashShipuf获得响应时，
$wpdb->prepare$actions\u success$wpdb->prepare