I'm using Laravel 5.8 and in this project, I wanted to show some results in Javascript based on the variable which is sent to View.
So at the Controller, I have added this:
$title = "";
if($popup->showtitle == 1){
$title = $popup->title;
}
return view("frontend.home")->with('title',$title);
Then at the view:
<script>
var title = JSON.parse("{{ json_encode($title) }}");
if(!title){
console.log(1);
}else{
console.log(2);
}
</script>
So basically, if title does not have any value, it should be showing 1 at the Console bar, otherwise 2 must be appears.
But the problem is, it does not show anything at all!
So what's going wrong out there? How can I properly get the result based on this variable value?
in controller
$title = "your title";
return view('rontend.home')->with([
'title' => $title,
]);
in blade
<script>
$(document).ready(function() {
var title = {!! json_encode($title) !!};
console.log(title);
});
</script>
Related
I am having 2 portions of code (php and javascript).
In the PHP file, I use the function json_encode() to create a JSON data which will be sent to the Javascript file.
PHP FIle
<?php
if(isset($_GET["remove_code"]) && isset($_SESSION["products"]))
{
$product_code = filter_var($_GET["remove_code"], FILTER_SANITIZE_STRING); //get the product code to remove
if(isset($_SESSION["products"][$product_code])) {
unset($_SESSION["products"][$product_code]);
}
$total_items = count($_SESSION["products"]);
if($total_items == 0){
unset($_SESSION["products"]);
}else{
//Calculate total of items in the cart
$total = 0;
foreach($_SESSION["products"] as $product){ //loop though items and prepare html content
$product_price = $product["price"];
$product_quantity = $product["quantity"];
$subtotal = $product_price * $product_quantity;
$total += $subtotal;
}
}
die(json_encode(array('items'=>$total_items, 'total'=>$total)));
}
?>
Javascript File
<script>
$(document).ready(function(){
$(".contentwrapper .content").on('click', 'a.removebutton', function() {
var pcode = $(this).attr("data-code"); //get product code
$.getJSON( "phpfile.php", {"remove_code":pcode}, function(data) {
alert(data.items);// the total number of item
});
});
</script>
Anytime the query $.getJSON( "phpfile.php", {"remove_code":pcode}... is successful, an alert is displayed showing the data.items. The problem I am facing is that, when data.items is greater than or equal to 1 the alert is prompted, but when data.items is equal to 0, no alert is prompted.
Kindly help me solve this problem
Looks like a PHP error. $total variable is only declared inside the 'else' condition, so when ($total_items == 0) $total is undefined. But as you've called die(json_encode(array('items'=>$total_items, 'total'=>$total))); the server doesn't have a chance to complain (maybe returning no data and hence no alert). If you try declaring $total = 0 before your condition it should also fix the issue, without having to die early.
One possibility is that actually data variable is undefined/null e.t.c., see this for example, second alert is not shown. Instead an error is shown on the browser console.
var data = {items:0};
alert(data.items);
data = null;
alert(data.items);
Adding die(json_encode(array('items'=>$total_items))); at the end of the condition if($total_items == 0) and it solves the problem. But I really can't explain what is happening. Up to now I do not really know the origin of the problem. Any explanation will be welcomed
Is there a way via some lines of JavaScript to assign the value of a custom meta field in a Wordpress post/page to a JavaScript variable?
In other words, I've got a custom meta field in all my Wordpress posts and pages named "customamznsearch". I'd like to assign the value of that field to a JavaScript variable with the same name... or different name if need be.
Also, an added bonus would be to also define a static value for the variable if no data is available from that meta field.
This is the code that will be utilizing the "customamznsearch" variable.
<script type="text/javascript">
amzn_assoc_placement = "adunit0";
amzn_assoc_tracking_id = "livcouintheci-20";
amzn_assoc_ad_mode = "search";
amzn_assoc_ad_type = "smart";
amzn_assoc_marketplace = "amazon";
amzn_assoc_region = "US";
amzn_assoc_textlinks = "";
amzn_assoc_linkid = "0c1ce8995df23ae16ec99d3bb32502ec";
amzn_assoc_default_category = "SportingGoods";
amzn_assoc_default_search_phrase = customamznsearch;
</script>
<script src="//z-na.amazon-adsystem.com/widgets/onejs?MarketPlace=US"></script>
This code will be displayed in an Enhanced Text Widget in the footer of my page. The Enhanced Text widget should be fully capable of supporting Text, HTML, CSS, JavaScript, Flash, Shortcodes, and PHP.
After much research, the following snippet of code was what ended up working (please note that I decided to change the variable to 'amazonadserach'):
var amazonadsearch = "<?php global $post;
$amazonadsearch = get_post_meta($post->ID, 'amazonadsearch', true);
echo $amazonadsearch; ?>";
You can just output javascript code from php like this:
<script>
var customamznsearch = "<?php echo addcslashes($customamznsearch, '"'); ?>";
</script>
Or if you mean to get it from the <meta> tags, then:
function getMeta(metaName) {
var metas = document.getElementsByTagName('meta');
for (i=0; i<metas.length; i++) {
if (metas[i].getAttribute("name") == metaName) {
return metas[i].getAttribute("content");
}
}
return "";
}
var twitterTitle = getMeta("twitter:title");
Having some strange issue that I've been looking at for a couple of days now, and even with Googling can't solve.
I have this piece of JS that is called when a button is pressed. I cab tell this function really is called because the alert("1") pops up. I also know for sure the rarray is populated.
<script type="text/javascript">
function process_match() {
var rarray = new Array();
$x = $("input[name=pair]:checked").val();
$left = $x.charAt(0);
$rite = $x.charAt($x.length-1);
$car1a = document.getElementById("car"+$left+"_"+$rite+"_1").value;
$car1b = document.getElementById("car"+$rite+"_"+$left+"_1").value;
.....
$hsb = document.getElementById("hs"+$rite+"_"+$left).value;
rarray[0] = $left;
rarray[1] = $rite;
rarray[2] = $car1a;
rarray[3] = $car1b;
.....
rarray[15] = $hsb;
alert("1");
$.post("./updpoule.php",
{'results': rarray},
function(data) {
alert("2");
}
);
}
</script>
Then, I have the following php file :
<?php
$f = fopen("/tmp/q", "w");
$array = $_POST['results'];
fwrite($f,"AAA");
fwrite($f, $array[0]);
fwrite($f, $array[1]);
fclose($f);
?>
I have seen this code all over as solutions to similar problems, but I can't get it to work.
If I run the code, the alert("1") pops up. After that nothing happens. No file /tmp/q is being created. BUT, if I debug the page, and set a breakpoint where the $.post is, and then step through, a file /tmp/q IS created, just not with the right content..
Any suggestions are more than welcome.
Thanks,
Hans
Try to return something from your php script.
For example, add this to the end of the file:
echo 'OK';
?>
And, in you JS:
$.post("./updpoule.php", {'results': rarray}, function(data) {
if (data === 'OK') {
alert('ok');
} else {
console.log(data);
alert('error');
}
});
If you'll get popup with error, check the console on the data you've got from php.
I'm trying to retrieve multiple $_GET variables within PHP. Javascript is sending the URL and it seems to have an issue with the '&' between variables.
One variable works:
//JAVASCRIPT
var price = "http://<site>/realtime/bittrex-realtime.php?symbol=LTC";
//THE PHP END
$coinSymbol = $_GET['symbol'];
echo $coinSymbol
OUTPUT: LTC
With two variables:
//JAVASCRIPT
var price = "http://<site>/realtime/bittrex-realtime.php?type=price&symbol=LTC";
//THE PHP END
$coinSymbol = $_GET['symbol'];
$type = $_GET['type'];
echo $coinSymbol
echo $type
OUTPUT: price
It just seems to ignore everything after the '&'. I know that the PHP end works fine because if I manually type the address into the browser, it prints both variables.
http://<site>/realtime/bittrex-realtime.php?type=price&symbol=LTC
OUTPUT ON THE PAGE
priceLTC
Any ideas? It's driving me nuts - Thanks
UPDATE - JAVASCRIPT CODE
jQuery(document).ready(function() {
refresh();
jQuery('#bittrex-price').load(price);
});
function refresh() {
setTimeout( function() {
//document.write(mintpalUrl);
jQuery('#bittrex-price').fadeOut('slow').load(price).fadeIn('slow');
refresh();
}, 30000);
}
Separate the url and the data that you will be sending
var price = "http://<site>/realtime/bittrex-realtime.php";
function refresh() {
var params = {type:'price', symbol: 'LTC'};
setTimeout( function() {
//document.write(mintpalUrl);
jQuery('#bittrex-price').fadeOut('slow').load(price, params).fadeIn('slow');
refresh();
}, 30000);
}
And in your PHP use $_POST or you can do it like this
$coinSymbol = isset($_POST['symbol']) ? $_POST['symbol'] : $_GET['symbol'];
Refer to here for more information jquery .load()
I'm trying to fill a form if I find that the name and the firstname input by the user already exist in my database.
For the moment, I would like to check if the name and the firstname already exist in the database but my javascript program doesn't work. It's seems that the part..." "$.post("../modules/verifier_staff.php",{ nom: ..." is not correct.
Then I would like to fill my form with the data that my database give (array).
Can somenone help me to find my mistakes and to tell me how I can use the data i receive from database to fill my form?
$(document).ready(function(){
var form_nom = $("#staff_nom");
var form_prenom = $("#staff_prenom");
$(form_nom).change(function() {
checkvariable();
});
$(form_prenom).change(function() {
checkvariable();
});
function checkvariable(){
if((form_nom.val().length >0)&&(form_prenom.val().length>0)){
prenom_staff = form_prenom.val();
nom_staff = form_nom.val();
//alert(nom_staff);
$.post("../modules/verifier_staff.php",{ nom: nom_staff, prenom: prenom_staff},
function(data){
if(data)
{
alert('ok');
}
else alert('nok');
});
}
}
});
var form_nom = $("#staff_nom");
var form_prenom = $("#staff_prenom");
$(form_nom).change(function() {
checkvariable(form_nom,form_prenom); //pass arguments into the function
});
$(form_prenom).change(function() {
checkvariable(form_nom,form_prenom);
});
function checkvariable(form_nom,form_prenom){ //innclude argument in function definition
//......
}
thank for your help. Yes I'm sure that the path is correct.
Here is my code from ../modules/verifier_staff.php
<?php
include('../inc/settings.php');
include('../inc/includes.php');
//$_POST['nom']='Doe';
//$_POST['prenom']='John';
$nom=$_POST['nom'];
$prenom=$_POST['prenom'];
$Dbcon = new Db;
$personne_manager = new PersonneManager($Dbcon->dbh);
$personne = $personne_manager->get(array('conditions'=> array('nom' => strtolower($nom),'prenom' => strtolower($prenom))));
if($personne)
{
$result = true;
}
else
{
$result = false;
}
return $result;
?>
this part works well (I tested it) so I think the problem come from my javascript code. I'm a newbie in javascript/jquery.