Get access the JavaScript loop value in php

Question

Here is my code:

var marker,i,marker1,k;
for(i=0; i <20; i++)
{
//I want to assign this i variable value in php variable
function addMarker(latLng, map) {
    var marker = new google.maps.Marker({
        position: latLng,
        map: map,
        animation:google.maps.Animation.BOUNCE
    });
 //like as
    var conte='<?php $j="<script>document.write(i);</script>"; 
    ?>';

I want to use that value below here:

    var contentvalue= '<div style="color:   #008000;"><strong><b><?php echo  "$b[$j]" ?></b></strong></div>';
    
     var infowindow = new google.maps.InfoWindow({
      content: contentvalue,
           
        });
         marker.addListener('click', function() {
      
    infowindow.open(map, marker);
    });
             return marker[i];
    }   
}

This isn't going to work. The PHP is run on the server and the JS is run on the client. — Chris Charles, Sep 26 '16 at 13:49
They're two different languages operating in two different environments. - You'll need to use AJAX to link client-side to server-side. — evolutionxbox, Sep 26 '16 at 13:49
That won't work. PHP is parsed on the server and javascript is parsed in the client. That means that PHP gets parsed first and when it's done, the result is sent to the client. — M. Eriksson, Sep 26 '16 at 13:50
Do you want a **PHP var in JS or a JS var in PHP**? @NaveedAbbas — Mihailo, Sep 26 '16 at 13:54
How, depends on what you are going to do with the value. You can send the value to a separate PHP-script using Ajax, do stuff with it in PHP and then return the result to your Ajax script. — M. Eriksson, Sep 26 '16 at 13:56
looking at this backwards ... create php array and either output that to javascript variable or make ajax request to get it — charlietfl, Sep 26 '16 at 14:03
Could you please elaborate so that more people of knowledge could be engaged in your problem? — Enamul Hassan, Sep 27 '16 at 11:13
Possible duplicate of [How to pass JavaScript variables to PHP?](http://stackoverflow.com/questions/1917576/how-to-pass-javascript-variables-to-php) — showdev, Sep 29 '16 at 16:43

score 0 · Answer 1 · answered Sep 26 '16 at 14:37

Essentially, you are trying to do this backwards. You can use PHP to dynamically build a JavaScript block on the server side but, you cannot use PHP while JavaScript is executing. Since PHP is Server-side and JS is Client-side, you need to decide to go with one of the languages.

Also, you shouldn't be defining a function inside of your for loop. Just define the function outside and call it from within the for loop.

function addMarker(latLng, map) {
    var marker = new google.maps.Marker({
        position: latLng,
        map: map,
        animation:google.maps.Animation.BOUNCE
    });
    return marker;
}
function addInfoBox(contentString) {
    var infowindow = new google.maps.InfoWindow({
        content: contentString
    });
    return infowindow;
}
var i = 0
for(i=0; i < 20; i++)
{
    var contentString='<script>document.write('+i+');</script>'; 
    var marker = addMarker(latLng, map);
    var info = addInfoBox(contentString, marker);
    marker.addListener('click', function() {
        info.open(map, marker);
    });
}

This code is not at all perfect but, I think it gives a general idea of how you should start here. You'll have to clean it up and make sure it fits in with your application. I do not see a need for any PHP here as this is all client-side code and Google Maps API does not parse or execute any PHP code.

score 0 · Answer 2 · answered Sep 27 '16 at 11:18

0

Try :

<script>    
    var phparr = <?php echo json_encode($phparr); ?>;

    for (i in phparr){

        alert("hey" + phparr[i]);

    }
</script>

answered Sep 27 '16 at 11:18

Alpesh Rathod

385
3
10

Get access the JavaScript loop value in php

Here is my code:

2 Answers2