在我的Javascript代码中:
url:……/Misc-2/Ci-TodoList/index . php/home/jsonAddData
我得到以下错误:
index.php:13 Uncaught SyntaxError: Unexpected token:
<script type="text/javascript" language="javascript">
$(document).ready(function() {
$('#add').bind('keypress', function(e) {
if(e.keyCode == 13){
$.ajax({
type: "POST",
dataType: "JSON",
url: <?php echo site_url("home/jsonAddData"); ?>,
data: dataString,
json: {title_posted: true},
success: function(data){
if(data.title_posted == true) { // true means data was successfully posted.
$("#success").append("Success");
} else if(data.title_posted == false) { // false means data failed to post.
$("#success").append('Failure');
}
}
});
}
});
}
});
});
</script>
经过一些调试技巧后,我非常肯定index.php:13引用了我的PHP脚本。它做的其中一件事是当我加载url助手时,它说这会导致错误。然后我自动加载了url助手,现在它说第13行导致了错误,但第13行只是一个mysql选择查询,你可以在下面确定:
<?php
class home extends CI_Controller {
function __construct() {
parent::__construct();
}
function index() {
$data = array();
$data['lists'] = $this->displayList();
$this->load->view('home', $data);
}
function displayList() {
$str = '';
$query = $this->db->query("SELECT * FROM data");
foreach ($query->result() as $row) {
$b = '<input name="completed" type="checkbox" />';
$a = $row->title . "<br>";
$str .= $b.$a;
}
return $str;
}
function jsonAddData() {
if($this->input->is_ajax_request()) {
header('Content-type:application/json');
$title = $this->input->post('title');
$query = $this->db->query("INSERT INTO data (title) VALUES ('$title')");
if($query) return json_encode(array('title_posted' => true));
else return json_encode(array('title_posted' => false));
}
}
}
?>
你知道为什么会这样吗?
你得到JS错误,所以PHP语法不是罪魁祸首。:)
将<?php echo site_url("home/jsonAddData"); ?>
用双引号括起来(我指的是""
)。如果你有其他语法错误,适当的缩进可以节省你的时间。
解决后的版本:
$(document).ready(function() {
$('#add').bind('keypress', function(e) {
if(e.keyCode == 13){
$.ajax({
type: "POST",
dataType: "JSON",
url: "<?php echo site_url("home/jsonAddData"); ?>",
data: dataString,
json: {title_posted: true},
success: function(data){
if(data.title_posted == true) { // true means data was successfully posted.
$("#success").append("Success");
} else if(data.title_posted == false) { // false means data failed to post.
$("#success").append('Failure');
}
}
});
}
});
});