Getting position from 2 dimensional array instead of value PHP - php

Question

Currently working on a project like bejuweld (candy crush type)
I've got a 2 dimensional table generated which contains 0 matches of 3 in a row. currently i want to click any of the numbers inside the table. I've got it clickable but I don't know how to make it an individual position.
When you click on the 4th row and 5th column I want it to output an int which says 45.
This is the part where it is about:
// Create the playing field
echo"<table border='2px;'>";
for($y = 0; $y < $th; $y++){
echo"<tr>";
for($x = 0; $x < $tw; $x++){
echo "<td><a href='#'>" .$aww_ar[$x][$y]."</a></td>";
}
echo"</tr>";
}
echo"</table>";
Which looks like this->
Inside the TD i made a href, I want the href to output the current position it's in.
I've Tried to do this ->
But it outputs the current value of position.
// Create the playing field
echo"<table border='2px;'>";
for($y = 0; $y < $th; $y++){
echo"<tr>";
for($x = 0; $x < $tw; $x++){
echo "<td><a href='".$aww_ar[$x][$y]."'>" .$aww_ar[$x][$y]."</a></td>"; // <---
}
echo"</tr>";
}
echo"</table>";
Here's all of the code ->
<?php
error_reporting('0');
echo("<link rel='stylesheet' type='text/css' href='./stylesheet.css'>");
$aww_ar = array();
// SELECT PLAYING FIELD VALUES
$th = 10;
$tw = 10;
// Amount of numbers
$amount = 5;
// Create array
for($y = 0; $y < $th; $y++){
for($x = 0; $x < $tw; $x++){
$randomise = rand(1,$amount);
$aww_ar[$x][$y] = $randomise ;
}
}
$numb = 0;
$match = true;
$counting = 0;
while ($match){
// Deletes matches and replaces with the value above
foreach ($aww_ar as $key=>&$value) {
foreach ($aww_ar[0] as $k=>$v) {
if($aww_ar[$key][$k] == 'X'){
$aww_ar[$key][$k] = $aww_ar[$key ][$k - 1];
}
}
}
// Fills in empty space
foreach ($aww_ar as $key=>&$value) {
foreach ($aww_ar[0] as $k=>$v) {
if($aww_ar[$key][$k] == ""){
$aww_ar[$key][$k] = rand(1,$amount);
}
}
}
// Detects matches and marks them with X
foreach ($aww_ar as $key=>&$value) {
foreach ($aww_ar[0] as $k=>$v) {
if ($k > 0 && $k < $tw &&$aww_ar[$key][$k] == $aww_ar[$key][$k - 1] && $aww_ar[$key][$k] == $aww_ar[$key][$k + 1]) {
$aww_ar[$key][$k] = 'X';
$aww_ar[$key][$k + 1] = 'X';
$aww_ar[$key][$k - 1] = 'X';
}
if ($key > 0 && $key < $th && $aww_ar[$key][$k] == $aww_ar[$key - 1][$k] && $aww_ar[$key][$k] == $aww_ar[$key + 1][$k]) {
$aww_ar[$key][$k] = 'X';
$aww_ar[$key + 1][$k] = 'X';
$aww_ar[$key - 1][$k] = 'X';
}
}
}
// Checks if X is in playing field, Else it will call it a day
for ($i=0; $i < $th; $i++) {
if(!in_array('X',$aww_ar[$i])){
$numb++;
if($numb == $th){
echo "The playing field has developed: ".$counting." Times";
$match = false;
}else {
$counting++;
}
}
}
if($numb != 0){
$numb = 0;
}
}
// Create the playing field
echo"<table border='2px;'>";
for($y = 0; $y < $th; $y++){
echo"<tr>";
for($x = 0; $x < $tw; $x++){
echo "<td><a href='#'>" .$aww_ar[$x][$y]."</a></td>";
}
echo"</tr>";
}
echo"</table>";