What are some common challenges when customizing the X-axis labels in a PHP charting library?

One common challenge when customizing X-axis labels in a PHP charting library is formatting the labels to display in a specific way, such as showing dates or custom text. This can be achieved by using the library's built-in formatting options or by manually setting the labels using an array.

// Example of customizing X-axis labels in a PHP charting library

// Using built-in formatting options
$chart->getXAxis()->setLabels(['Jan', 'Feb', 'Mar', 'Apr', 'May']);

// Manually setting custom labels
$chart->getXAxis()->setLabels(['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday']);