嗨伙计们,我只是想问为什么我的ajax请求确实得到一个FALSE字符串(它应该从控制器获取错误消息).
这是控制器的片段
function ajax_verify(){
$this->form_validation->set_rules('username','','max_length[25]|min_length[4]|trim|required|xss_clean');
$this->form_validation->set_rules('email','valid_email|required|trim|xss_clean');
if($this->form_validation->run()==FALSE){
$errors = $this->form_validation->error_array();
echo json_encode($this->form_validation->error_array());
}else{
echo "Success!";
}
}
class MY_Form_validation extends CI_Form_validation{
function __construct(){
parent::__construct();
}
function error_array(){
if(count($this->_error_array)===0){
return FALSE;
}else{
return $this->_error_array;
}
}
function get_tae(){
return "TAE!";
}
}
并持续查看和jquery ajax代码(返回false而不是错误).
<!DOCTYPE HTML>
<html>
<head>
<Meta charset="utf-8">
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.js"></script>
<title>Title</title>
<body>
<?PHP //echo validation_errors('<div class="error">','</div>');?>
<?PHP echo form_open('ajax/ajax_verify',array('id'=>'my_form'));?>
<?PHP echo form_label('Username'); ?>
<?PHP echo form_input('username',array('id' => 'username'));?>
<?PHP echo form_label('Email Address'); ?>
<?PHP echo form_input('email',array('id' => 'email')); ?>
<?PHP echo form_submit('submit','Submit'); ?>
<?PHP echo form_close();?>
<script type="text/javascript">
$(function(){
$('#my_form').submit(function(e){
$.get('ajax_verify',function(data){
$('#contents').append(data);
},'json') ;
e.preventDefault();
})
});
</script>
试试这个.它会工作正常.
原文链接：https://www.f2er.com/php/240223.htmlpublic function CreateStudents() {
$this->load->helper('form');
$data['title'] = "Create Students Page";
$data['success'] = "";
$this->load->view('templates/header',$data);
$this->load->view('createstudents',$data);
$this->load->view('templates/footer',$data);
}
public function CreateStudentsAjax() {
$this->load->helper('form');
$this->load->library('form_validation');
$this->form_validation->set_error_delimiters('','');
$this->form_validation->set_rules('roll','Roll Number','required');
$this->form_validation->set_rules('name','Name','required');
$this->form_validation->set_rules('phone','Phone','required');
if ($this->form_validation->run()) {
$this->welcome_model->InsertStudents();
echo json_encode("Oks");
} else {
$data = array(
'roll' => form_error('roll'),'name' => form_error('name'),'phone' => form_error('phone')
);
echo json_encode($data);
}
}
在视图中添加表单和名为“mesage”的DIV
<div id="message">
</div>
<?PHP echo form_open('welcome/CreateStudentsAjax'); ?>
<label for="roll">Student Roll Number</label>
<input type="text" id="txtRoll" value="" name="roll"/>
<label for="Name">Students Name</label>
<input type="text" id="txtName" value="" name="name"/>
<label for="Phone">Phone Number</label>
<input type="text" id="txtPhone" value="" name="phone"/>
<input type="submit" name="submit" value="Insert New Students" />
<?PHP echo '</form>'; ?>
现在脚本包含
<script type="text/javascript">
$(document).ready(function(){
$('form').submit(function(){
//alert('ok');
$.ajax({
url:this.action,type:this.method,data:$(this).serialize(),success:function(data){
var obj = $.parseJSON(data);
if(obj['roll']!=null)
{
$('#message').text("");
$('#message').html(obj['roll']);
$('#message').append(obj['name']);
$('#message').append(obj['phone']);
}
else
{
$('#message').text("");
$('#message').html(obj);
}
},erro:function(){
alert("Please Try Again");
}
});
return false;
});
});
</script>
