How to pass variables from while loop of PHP to JavaScript?

Hey there,

I had a similar situation in one of my projects recently, and I managed to pass variables from a PHP while loop to JavaScript using JSON. Here's what I did:

1. First, within your PHP while loop, create an empty array and push the values you want to pass into it. For example:

php
$data = array();

while ($row = mysqli_fetch_assoc($result)) {

    $data[] = $row['someValue'];

}

php
$jsonData = json_encode($data);

javascript
<script>

var jsonData = <?php echo $jsonData; ?>;

</script>

Hey folks,

I recently encountered a scenario where I needed to pass variables from a PHP while loop to JavaScript. In my case, I opted for a different approach that involved using cookies. Here's how I accomplished it:

1. Within your PHP while loop, set a cookie with the desired variable value using the `setcookie()` function. For example:

php
while ($row = mysqli_fetch_assoc($result)) {

    setcookie('myVariable', $row['someValue'], time() + 3600, '/');

}

javascript
<script>

    // Retrieve the cookie value

    var cookieValue = document.cookie.replace(/(?:(?:^|.*;\s*)myVariable\s*\=\s*([^;]*).*$)|^.*$/, "$1");



    // Now you have the variable value and can use it in your JavaScript code

</script>

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Hey everyone,

I faced a similar issue in one of my recent projects, and I found another approach to pass variables from a PHP while loop to JavaScript. Here's what I did:

Instead of using JSON, I utilized AJAX to achieve this. Here are the steps I followed:

1. Within your PHP while loop, assign the values you want to pass to specific HTML elements. For example, you can add a hidden input field and set its value inside the loop.

php
while ($row = mysqli_fetch_assoc($result)) {

    echo '<input type="hidden" class="my-value" value="' . $row['someValue'] . '">';

}

javascript
<script>

    // Get all elements with the class 'my-value'

    var elements = document.getElementsByClassName('my-value');



    // Iterate over the elements and extract the values

    var values = [];

    Array.from(elements).forEach(function(element) {

        values.push(element.value);

    });



    // Now you can use the 'values' array for further processing

</script>

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