When you create your while loop you can append the $testcount to the end of an ID for the button, this way each button will have its own unique ID, but still have a ‘template’ name that you can use in javascript.

<?php
$i = 0;
$testcount = 0;
while($testcount < 8) {
  echo '<button id="btn'.$testcount.'" onclick="test('.$testcount.')" class="btnT">Hello</button>';
  $testcount++;
}
?>

Afterwards you should get 7 buttons with ID’s btn1, btn2, btn3, btn4… etc

Then in Javascript you can run a function based off each button like this:

function test(x) {
    var myButton = document.getElementById('btn' + x);
    myButton.classList.add("test1");
    // Any more JS logic you have
}

When you click, for example, button #2, the ID of that button should be ‘btn2’. The onclick of the button will send the number ‘2’ as an argument to the JS function. The variable myButton will get the element by the ID of the btn + the number you gave it to create a string like ‘btn2’, then based off that you now know which button was pressed, and you are able to run actions based off that. Using your example you added the class ‘test1’ to that button.

`<?php
$i = 0;
$testcount = 0;
while($testcount < 8) {
  if($i == 0) {
    ?>
    <input id="info" type="hidden" value="hi">
    <?php
  } else if ($ == 1) {
    ?>
    <input id="info" type="hidden" value="test">
    <?php
  }
  ?>
  <button onclick="test()" class="btnT">Hello</button>
  <?php
  $testcount++;
}
?>
<style>
  .test1 {
     background-color: cyan;
     color: black;
  }
</style>
<script type="text/javascript">
  function test () {
     $(".btnT").addClass("test1");
  }
</script>`

Ignore the if statement, I have not yet implemented it to the js

I am displaying buttons using php while loop without any text nor class. A class is determined using an if statement using php where they will hold a hidden input value which will then be pushed to javascript which will then add a class depending on the value of the hidden input, I am then trying to remove and add another class to only one individual button displayed in the while loop. I either get the first button to get the change, or it changes all of the buttons, and not the individual button that I clicked. Please help, Thank you!

My biggest question is how to make each button inside the while loop to have the event occur individually, instead of all of them. I know that it is because I have the code to add a class to the button class, I tried replacing the button class with an id, but that way, only the first button will get the new class added and not the rest of the buttons. Hopefully there is a solution for each button to act separately