Can't Increment php variable in javascript loop for draw polygons on google map

Hey,

I totally understand the frustration you're facing with incrementing a PHP variable within a JavaScript loop. I had a similar issue a while ago, and after some research, I found an alternative approach that worked for me.

Instead of trying to directly increment the PHP variable within the JavaScript loop, I utilized JavaScript to handle the incrementation itself by keeping track of the count within a JavaScript variable. Then, whenever I needed to utilize the incremented value in PHP, I passed it back using AJAX.

Here's a simplified version of what I did:

php
<?php

$polygonCount = 0; // Initialize the variable

?>



<script>

  var jsPolygonCount = 0; // Initialize JavaScript variable



  for (var i = 0; i < someArray.length; i++) {

    // Some code here



    // Increment the JavaScript variable

    jsPolygonCount++;



    // AJAX call to send the incremented value to PHP

    $.ajax({

      url: 'increment.php', // Replace with your PHP script's URL

      type: 'POST',

      data: { count: jsPolygonCount }, // Pass the JavaScript count value

      success: function(response) {

        console.log('JavaScript variable successfully sent to PHP');

      },

      error: function(xhr, status, error) {

        console.log('Error sending JavaScript variable to PHP: ' + error);

      }

    });



    // More code here

  }

</script>

php
<?php

$polygonCount = $_POST['count'];



// Use the value in PHP as needed

echo 'Received the incremented count in PHP: ' . $polygonCount;

?>

Hey there,

I faced a similar issue a while back, and after some trial and error, I came up with a solution that worked for me. Instead of directly trying to increment the PHP variable within the JavaScript loop, I used AJAX to send the incremented value back to a PHP script. Here's what worked for me:

In the JavaScript loop, instead of incrementing the PHP variable directly, I made an AJAX call to a separate PHP script that handles the incrementation. Here's a simplified version of the code:

javascript
<script>

  for (var i = 0; i < someArray.length; i++) {

    // Some code here



    // AJAX call to increment the PHP variable

    $.ajax({

      url: 'increment.php', // Replace with your PHP script's URL

      type: 'POST',

      data: { count: i }, // Pass the current count as a parameter

      success: function(response) {

        console.log('PHP variable successfully incremented');

      },

      error: function(xhr, status, error) {

        console.log('Error incrementing PHP variable: ' + error);

      }

    });



    // More code here

  }

</script>

php
<?php

$polygonCount = $_POST['count'];

$polygonCount++; // Increment the count



// Store the updated count in a session variable for further usage

session_start();

$_SESSION['polygonCount'] = $polygonCount;



// Return a success response

echo 'Success';

?>

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