I have a list of options (categories) of projects that the user can see. By selecting the categories, the div below should update with the lists of projects matching said categories.
Despite using the following answer, almost verbatim, Send array with Ajax to PHP script, I am still unable to retrieve any results, and yet no errors show up either.
The jquery:
// filter for projects
var $checkboxes = $("input:checkbox");
function getProjectFilterOptions(){
var opts = [];
$checkboxes.each(function(){
if(this.checked){
opts.push(this.name);
}
});
return opts;
}
$checkboxes.on("change", function(){
var opts = getProjectFilterOptions();
//alert(opts);
var categories = JSON.stringify(opts);
$.ajax({
url: "/web/plugins/projcat.php",
type: "POST",
dataType: "json",
data: {data : categories},
cache: false,
success: function(data) {
$('#projects').html(data);
//alert(data);
}
});
});
the php (still in testing, so not filled out):
<?php
if(isset($_POST['categories'])) {
//echo "testing";
$data = json_decode(stripslashes($_POST['categories']));
print_r($data);
}
?>
Where is the error?
Try this:
JS
...
// dataType: "json", // remove that; you're not sending back JSON string
data: {categories : categories},
cache: false,
...
PHP
<?php
if($_SERVER['REQUEST_METHOD']=='POST' && isset($_POST['categories'])) {
//echo "testing";
$data = json_decode(stripslashes($_POST['categories']));
// .. process the $data
print_r($data);
return;
}
?>
Your desired array is in $_POST['data'] and not in $_POST['projcats']. Change data: {data : categories}, to data: { projcats: categories }, to use $_POST['projcats'].
Related
I would search for the solution, but I don't know what exactly do I have to search.
The task is to grab texts with ID's (#ftext_1,..._2,..._3,..._4) in html file and send them to php file. After some manipulation with texts in php file I have to insert them back into their ID's in html file.
Here is the code:
var text_1_Replace = $('#ftext_1').text();
var text_2_Replace = $('#ftext_2').text();
var text_3_Replace = $('#ftext_3').text();
var text_4_Replace = $('#ftext_4').text();
$('#ID').on('click', function(){
var text= {
ftext_1: text_1_Replace,
ftext_2: text_2_Replace,
ftext_3: text_3_Replace,
ftext_4: text_4_Replace
}
var targetFile = 'ajax/file.php';
$.ajax({
method: 'post',
url: targetFile ,
data: JSON.stringify(text),
contentType: 'application/JSON'
}).done(function(data) {
console.log(data);
});
});
How do I edit .done function to place new texts in their old ID's(#ftext_1,..._2,..._3,..._4)? The variable with texts array is $result.
so the answer is :
}).done(function(data) {
var text = JSON.parse(data);
var text1 = text.ftext_1;
var text2 = text.ftext_2;
var text3 = text.ftext_3;
var text4 = text.ftext_4;
$('#ftext_1').text(text1);
$('#ftext_2').text(text2);
$('#ftext_3').text(text3);
$('#ftext_4').text(text4);
So, the last update for the topic: The real and nice answer is:
.done(function(data) {
var text = JSON.parse(data);
$.each(text, function(i, val){
$("#" + i).text(val);
});
This code is the solution to my question in this topic. Thank you all, who responded!
The best for you would be send named property that looks like this
$.ajax({
method: 'post',
url: targetFile ,
data: {data: text},
dataType: "json",
success: function(response){
$.each(response, function(element){
$("#"+element.name).text(element.text);
});
}
});
Then in your php you could easily iterate data from post
<?php
$data = $_POST['data'];
$response = [
];
foreach($data as $elementName => $text){
// some text management
$response[] = ['name' => $elementName, 'text' => $text];
}
return json_encode($response);
When you change your received values in php you put them in an array so that you
can call it later easily
PHP
$values = array("one"=>5,
"two"=>"something",
"three"=>$something);
echo json_encode($values);
You need to add
dataType:'json'
in Jquery since you're returning json
JQuery
$.ajax({
method: 'post',
url: targetFile ,
data: JSON.stringify(text), # or data: {"value1":value,"value2":value2},
contentType: 'application/JSON',
dataType:'json',
success: function(response){
console.log(response.one); #Will console 5
console.log(response.two); #Will console "something"
console.log(response.three); #Will console whatever $something holds in php
}
});
You can call it however you want it (response) or (mydata)...
And then you just type response.yourdata (that you declared in php)
I have number of checkboxes on my page and I want to get those checkbox values in my database.
$('#assign_data').on("click",function()
{
var mandate_array = [];
var i= 0;
$('.assign_mandate:checked').each(function(){
mandate_array[i++] = $(this).val();
});
$.ajax
({
type: "POST",
url: BASE_URL+"mandate/assign_mandate.php",
data: "mandate_array="+mandate_array+"&role_id="+$('#role').val()+"&user_id="+$('#user').val(),
success: function(msg)
{
console.log(msg)
}
})
});
assign_mandate.php :
<?php
$mandate = explode(',',$_POST['mandate_array']);
// print_r($mandate); //it shows the data in array
count($mandate);exit; // it does not show the count in console
?>
When I print the array it show me the array data in console but when I try to echo the count of array it shows blank. Why ?
Thanks in advance
You have to echo the variable count value.
<?php
$mandate = explode(',',$_POST['mandate_array']);
// print_r($mandate); //it shows the data in array
echo count($mandate);exit; // it does not show the count in console
?>
Use JSON.stringify.
You would typically convert the array to a JSON string with JSON.stringify, then make an AJAX request to the server, receive the string parameter and json_decode it to get back an array in the PHP side.
$('#assign_data').on("click",function()
{
var mandate_array = [];
var i= 0;
$('.assign_mandate:checked').each(function(){
mandate_array[i++] = $(this).val();
});
$.ajax
({
type: "POST",
url: BASE_URL+"mandate/assign_mandate.php",
data: "mandate_array="+JSON.stringify(mandate_array)+"&role_id="+$('#role').val()+"&user_id="+$('#user').val(),
success: function(msg)
{
console.log(msg)
}
})
});
mandate_array is Array so you wont posted array data in query string, you should use JSON.stringfy() function to convert array/JSON object into string.
$.ajax
({
type: "POST",
url: BASE_URL+"mandate/assign_mandate.php",
data: "mandate_array="+JSON.stringfy(mandate_array)+"&role_id="+$('#role').val()+"&user_id="+$('#user').val(),
success: function(msg)
{
console.log(msg)
}
})
In PHP code
var_dump(json_decode($_POST['mandate_array']));
Use echo in front of the count()
I want to pass 2 arrays (each containing values from checkboxes) and a string (coming from a search textbox) from AJAX to PHP
selectedCategories and selectedCompanies are both arrays
searchWord is a string
I have an AJAX call which looks like this, I'm not sure if it looks right though
$.ajax({
type: "POST",
data: {
'companies' : selectedCompanies;
'categories' : selectedCategories;
'searchWord' : searchWord;
},
url: "php/filteringscript.php",
success: function(data){
alert(data);
}
});
and a PHP file that catches the posts
$selectedCategories = "";
$selectedCompanies = "";
$searchWord = "";
if(isset($_POST['companies'])){
$selectedCompanies = $_POST['companies'];
}
if(isset($_POST['categories'])){
$selectedCategories = $_POST['categories'];
}
if(isset($_POST['searchWord'])){
$searchWord = $_POST['searchWord'];
}
print_r($selectedCategories);
print_r($selectedCompanies);
print_r($searchWord);
But it is not working, and nothing gets printed out.
Any help will be greatly appreciated, thanks!
var jsonString1 = JSON.stringify(selectedCompanies);
var jsonString2 = JSON.stringify(selectedCategories);
return $.ajax({
type: "POST",
url: "php/filteringscript.php",
data: {companies : jsonString1,
categories : jsonString2,
searchWord : searchWord
},
cache: false,
success: function(data){
alert(data);
}
});
In PHP file:
$companies = json_decode(stripslashes($_POST['companies']));
$categories = json_decode(stripslashes($_POST['categories']));
$searchWord = $_POST['$searchWord']));
I am trying to use jQuery sortable and then save the changes to the database, however before I even get to updating the database I have something strange going on that I can't fathom. If I log the serialised data to the console, I get all items in the 'list' but if I echo out the json encoded array from the php script I only get one item - confused.com.
The jquery at the moment is:
$('#sortable-list').sortable({
//handle : '.handle',
update : function () {
var order = $(this).sortable('serialize');
var table = $(this).parent().attr('id');
console.log(order);
$.ajax ({
type: "POST",
url: templateDir + "/inc/changeSortOrder.php",
data: "order=" + order + "&sort=1&sort_table=" + table,
dataType: "json",
cache: false,
success: function(data)
{
console.log(data);
}
});
}
});
The PHP at the moment is:
if (isset($_POST['sort']) && $_POST['sort'] == 1) {
if ($_POST['sort_table'] == 'nationalities') {
$output = array();
$list = parse_str($_POST['order'], $output);
echo json_encode($output);
}
}
The console log gives me:
nationality[]=17&nationality[]=1&nationality[]=47&nationality[]=23&nationality[]=3&nationality[]=4&nationality[]=5&nationality[]=6&nationality[]=7&nationality[]=8&nationality[]=12&nationality[]=10&nationality[]=11&nationality[]=13&nationality[]=14&nationality[]=15&nationality[]=16&nationality[]=18&nationality[]=19&nationality[]=20&nationality[]=21&nationality[]=22&nationality[]=24&nationality[]=25&nationality[]=26&nationality[]=27 etc
And the echo json gives me:
Object {nationality: Array[1]}
nationality: Array[1]
0: "17"
length: 1
So for some reason the full array isn't being passed through to the PHP file and I can't work out why.
Your problem is that you are trying to assign a serialized array, to a single query string parameter, which will yield an incorrect query string. Try passing the serialized list as returned by the plugin serialize method like so:
$.ajax ({
type: "POST",
url: templateDir + "/inc/changeSortOrder.php",
data: order + "&sort=1&sort_table=" + table,
dataType: "json",
cache: false,
success: function(data)
{
console.log(data);
}
});
And then access the passed list in php with:
$list = $_POST['nationality'];
I need (recently) to get an array from the server after an ajax call created by jquery. I know that i can do it using JSON. But i don't know how to implement it with JQuery (im new with JSON). I try to search in internet some example, but i didnt find it.
This is the code :
// js-jquery function
function changeSponsor() {
$.ajax({
type: 'POST',
cache: false,
url: './auth/ajax.php',
data: 'id=changespon',
success: function(msg) {
// here i need to manage the JSON object i think
}
});
return false;
}
// php-server function
if((isset($_POST['id'])) && ($_POST['id']=="changespon")) {
$linkspon[0]="my ";
$linkspon[1]="name ";
$linkspon[2]="is ";
$linkspon[3]="marco!";
echo $linkspon;
}
in fact, i need to get the array $linkspon after the ajax call and manage it. How can do it? I hope this question is clear. Thanks
EDIT
ok. this is now my jquery function. I add the $.getJSON function, but i think in a wrong place :)
function changeSponsor() {
$.ajax({
type: 'POST',
cache: false,
url: './auth/ajax.php',
data: 'id=changespon',
dataType: 'json',
success: function(data) {
$.getJSON(url, function(data) { alert(data[0]) } );
}
});
return false;
}
Two things you need to do.
You need to convert your array to JSON before outputting it in PHP. This can easily be done using json_encode, assuming you have a recent version of PHP (5.2+). It also is best practice for JSON to use named key/value pairs, rather than a numeric index.
In your jQuery .ajax call, set dataType to 'json' so it know what type of data to expect.
// JS/jQuery
function changeSponsor() {
$.ajax({
type: 'POST',
cache: false,
url: './auth/ajax.php',
data: 'id=changespon',
dataType: 'json',
success: function(data) {
console.log(data.key); // Outputs "value"
console.log(data.key2); // Outputs "value2"
}
});
return false;
}
// PHP
if((isset($_POST['id'])) && ($_POST['id']=="changespon")) {
$linkspon["key"]= "value";
$linkspon["key2"]= "value2";
echo json_encode($linkspon);
}
1) PHP: You need to use json_encode on your array.
e.g.
// php-server function
if((isset($_POST['id'])) && ($_POST['id']=="changespon")) {
$linkspon[0]="my ";
$linkspon[1]="name ";
$linkspon[2]="is ";
$linkspon[3]="marco!";
echo json_encode($linkspon);
}
2) JQUERY:
use $.getJSON(url, function(data) { whatever.... } );
Data will be passed back in JSON format. IN your case, you can access data[0] which is "my";