What could be causing the issue with the last x-axis value being displayed incorrectly in the PHP code provided?

The issue with the last x-axis value being displayed incorrectly could be due to off-by-one errors when iterating through the array. To solve this, we need to adjust the loop condition to include the last element in the array.

// Adjust the loop condition to include the last element in the array
for ($i = 0; $i <= count($data) - 1; $i++) {
    echo $data[$i]['x'] . ' ';
}