I have a javascript that is collecting data like this:
var chk = [];
$("input[name=row_sel]:checked").each(function() {
chk.push ({
"value": $(this).attr('id'),
"type" : $(this).data('typo')
});
});// JavaScript Document
The chk array is beeing sent via ajax into a php script
How can I interpret that array?
I have tried to do like this:
$chk = $_REQUEST['chk'];
foreach ($chk as $info) {
}
The ajax that is sending the array is:
$.ajax({
url: 'view/debts/debts_validation.php',
type: 'post',
dataType: 'json',
data: { 'chk[]' : chk },
beforeSend: function() {
$("#dt_debts_processing").css("visibility","visible");
},
complete: function() {
$("#dt_debts_processing").css("visibility","hidden");
$("#dt_debts_processing").html('Checking compatibility...');
},
success: function(json) {
if (json['status']) {
location = '?route=home/debts/insert';
cForm.hide().append('body').submit();
return false;
} else {
$.sticky("Current selection is not available for multiple edit.", {autoclose : 5000, position: "top-right", type: "st-error" });
}
}
});
I think you are trying to send an JavaScript object via ajax.
You cant do that. You need to serialize your object with the JSON.stringify() function.
Then you can reserialize this string with the json_decode() function.
I hope that helps.
PS:
Dont access the Request-Data with the $_REQUEST variable. Use $_GET or $_POST
this?
data: { 'chk[]' : chk },
you can perfectly send it like:
data: { chk : chk },
and access the array via:
$chk = $_POST['chk'];
foreach ($chk as $info) {
echo "value: ".$info["value"];
echo "type: ".$info["type"];
}
Just do it like this:
$chk = $_REQUEST['chk'];
foreach ($chk as $info) {
echo $info;
}
Related
I'm trying to implement the EasyAutoComplete plugin on a field based on the value filled in another field, using ajax requests.
I have a customerid field and when it's value changes, I want the productname field to show all products related to that customerid using the EasyAutoComplete plugin.
Here is what I have so far:
$('#customerid').on('change',function() {
var products2 = {
url: function(phrase) {
return "database/FetchCustomerProducts.php";
},
ajaxSettings: {
dataType: "json",
method: "POST",
data: {
dataType: "json"
}
},
preparePostData: function(data) {
data.phrase = $("#customerid").val();
return data;
},
getValue: "name",
list: {
onSelectItemEvent: function() {
var value = $("#productname").getSelectedItemData().id;
$("#productid").val(value).trigger("change");
},
match: {
enabled: true
}
}
};
$("#productname").easyAutocomplete(products2);
});
Contents of FetchCustomerProducts.php:
if(!empty($_POST["customerid"])){
$products = $app['database']->Select('products', 'customerid', $_POST['customerid']);
echo json_encode(['data' => $products]);
}
However it's not working. The code is based on the 'Ajax POST' example found on this page.
you can using element select category add is class "check_catogory"
after using event click element select get value is option, continue send id to ajax and in file php, you can get $_POST['id'] or $_GET['id'], select find database,after echo json_encode
$("#customerid").change(function(){
var id = $(this).val();
if(id!=""){
$.ajax({
url:"database/FetchCustomerProducts.php",
type:"POST",
data:{id:id},
dataType: "json",
cache:false,
success:function(result){
var options = {
data:result,
getValue: "name",
list: {
onSelectItemEvent: function() {
var value = $("#productname").getSelectedItemData().id;
$("#productid").val(value).trigger("change");
},
match: {
enabled: true
}
}
};
$("#productname").easyAutocomplete(options);
}
})
}
});
I am trying to pass the form field values to a php function located into a file. The problem is that I can't understand how to pass that serialized form data to the function from this ajax to a function in php.
$('#insert_news').submit(function(event) {
event.preventDefault();
var form = $('#insert_news').serialize();
$.ajax({
type: 'POST',
url: 'includes/ajax.php',
data: {
action: 'insert_news',
$('#insert_news').serialize(); // how do I add this data here?
},
success: function(datas) {
$('#message').html(datas).show() /*fadeIn(1000).fadeOut(1000)*/ ;
}
});
});
This ajax passed the values to the file ajax.php right beyond. And from ajax.php is called the function located in functions.php.
ajax.php
if (isset($_POST['action']) && $_POST['action'] == 'insert_news') {
$cp->insert_into_table('newss', array(
'NewsTitle' => $_POST['title'],
'NewsDescrption' => $_POST['description'],
'Date' => date('Y-m-d H:i:s'),
'status' => '1'
)
);
}
function.php
public function insert_into_table($table_name, array $data){
foreach($data as $col=>$value) {
$cols[] = $col;
$values[] = '\''.$value.'\'';
}
$cols = implode(', ', $cols);
$values = implode(', ', $values);
$this->db->query("INSERT INTO $table_name ($cols) VALUES ($values)");
echo "INSERT INTO $table_name ($cols) VALUES ($values)";
}
The issue is serialize() produces a URL encoded key value paired string, so you can't mix that with your data object.
You can use serializeArray() to get an array of objects, representing the form elements, then iterate over them and add them to a data object:
var data = { action: 'insert_news' };
$.each($('#insert_news').serializeArray(), function(){
data[this.name] = this.value;
});
$.ajax({
type: 'POST',
url: 'includes/ajax.php',
data: data,
success: function(datas) {
$('#message').html(datas).show() /*fadeIn(1000).fadeOut(1000)*/ ;
}
});
Side note: your PHP code is vulnerable to SQL Injection. Consider using a Prepared Statement instead of concatenating user input into the SQL.
You can pass serialized data via ajax to a function the way you are doing but your code needs slight modification.
$('#insert_news').submit(function(event) {
event.preventDefault();
var form = $('#insert_news').serialize();
$.ajax({
type: 'POST',
url: 'includes/ajax.php',
data: {
action: 'insert_news',
serializedData: form // use variable to assign data here
},
success: function(datas) {
$('#message').html(datas).show() /*fadeIn(1000).fadeOut(1000)*/ ;
}
});
});
I think you can use alternate like this
First : add hidden input for action on your form
<input type="hidden" name="action" value="insert_news"/>
Then your ajax post like this
$('#insert_news').submit(function(event) {
event.preventDefault();
$.ajax({
type: 'POST',
url: 'includes/ajax.php',
data: $(this).serialize(), // $(this) is from <form id="insert_news">
success: function(datas) {
$('#message').html(datas).show() /*fadeIn(1000).fadeOut(1000)*/ ;
}
});
});
And then use print_r on your ajax.php
print_r($_POST);
$('#insert_news').submit(function(event) {
var name = $("#t1").val();
var pass = $("#t2").val(); //add more var as u need
var key = 0;
var formName = new FormData();
formName.append(key++,name)
formName.append(key++,pass) //append the the var to formdata
$.ajax({
url : 'includes/ajax.php',
dataType : 'text',
cache : false,
contentType : false,
processData : false,
data : formName,
type : 'post',
success : function(data){
$('#message').html(data).show() /*fadeIn(1000).fadeOut(1000)*/ ;
}
});
});
this works fine for me :-)
So the purpose of me using this ajax post is to use some JS variables in a wordpress loop, so I can call a custom loop depending on what the variables are in the ajax post.
Below is the ajax call.
$('.collection-more').click(function() {
$.ajax({
type: 'post',
url: 'http://tmet.dev/wp-content/themes/muban-trust/single-collection.php',
data: { "test" : "hello" },
success: function( data ) {
console.log( data );
}
});
})
Currently I'm sending hard-coded data.
In my single-collection.php page:
<?php
print_r($_POST);
if(isset($POST['filters[Artist]']))
{
$filters_obj = $_POST['filters[Artist]'];
$filters_array = json_decode($filters_obj, TRUE);
for($i = 0; $i < sizeof($filters_array); $i++)
{
echo '<p>h'.$obj->name.'</p>';
}
}
?>
I'm using the print_r just to debug the problem, currently it returns:
Array()
The problem is that I cannot access the Json object called "test" within the single-collection.php
How do I access it?
Thanks in advance!
EDIT: Screenshot of firebug
From ajax to php :
this is the conventional way
var payload = {
smth1: "name",
smth2: "age"
};
and then when calling ajax
$.ajax({
url: "somephp.php",
type: 'POST',
data: payload,
dataType: 'json',
crossDomain: true
})
From phpPost to javascript:
right way getting the post parameters:
$fields = $_POST['fields'];
$usernameGiven = $fields['smth1'];
$passwordGiven = $fields['smth2'];
and when returning smthn to javascript
$result = array(
"something" => "something",
"something2" => $something2
);
echo json_encode($result);
Use $_POST['test'] to access the test parameter. Your print_r() shows that it is filled in correctly.
Your PHP code is accessing $_POST['filters[Artist]'] but there is no such parameter in the Javascript. If you pass:
data: { 'filters[Artist]': somevalue }
you can access it in PHP as $_POST['filters']['Artist'].
Hi Im attempting a simple ajax request but I keep getting a null value for json.
Here is my javascript...
<script>
$(document).ready( function() {
$('#donate-box-submit').on('click', function() {
var donate_code = $('#charity-campaign-code').val();
var donate_amount = $('#charity-campaign-amount').val();
$.ajax({
url: 'index.php?route=donate/donatenow',
type: 'post',
data: {
donate_code: donate_code,
donate_amount: donate_amount
},
dataType: 'json',
beforeSend: function() {
},
complete: function() {
},
success: function(json) {
console.log(json);
alert(json['test']);
},
error: function() {
}
});
});
});
</script>
and my php...
public function donatenow() {
$json = array(
'test' => 'Output this text'
);
$this->response->setOutput(json_encode($json));
}
I have also tried echo json_encode($json); just to rule out any issues with that OpenCart function, but the same issue is still there.
The problem is the route you are using to call the method. Not sure on exactly what class you are using as the controller, but there should be three parts to the route: route=aaa/bbb/donatenow where as you've got aaa/donatenow
I'm building a search app which uses Ajax to retrieve results, but I'm having a bit of trouble in how exactly to implement this.
I have the following code in Javascript:
if (typeof tmpVariable == "object"){
// tmpVariable is based on the query, it's an associative array
// ie: tmpVariable["apple"] = "something" or tmpVariable["orange"] = "something else"
var sendVariables = {};
sendVariables = JSON.stringify(tmpVariable);
fetchData(sendVariables);
}
function fetchData(arg) {
$.ajaxSetup ({
cache: false
});
$.ajax ({
type: "GET",
url: "script.php",
data: arg,
});
}
And within script.php:
<?php
$data = json_decode(stripslashes($_GET['data']));
foreach($data as $d){
echo $d;
}
?>
What is it that I'm doing wrong?
Thanks.
Your PHP script is expecting a GET var called 'data'. With your code you're not sending that.
Try this:
if (typeof tmpVariable == "object"){
var data = {data : JSON.stringify(tmpVariable)}; // Added 'data' as object key
fetchData(data);
}
function fetchData(arg) {
$.ajax ({
type: "GET",
url: "script.php",
data: arg,
success: function(response){
alert(response);
$("body").html(response); // Write the response into the HTML body tag
}
});
}