Nicely display the var content

pvar.php

<?php
/**
 * Nicely display the var content.
 *
 * @param mixed $var
 * @param bool $die
 */
function pvar( $var = '', $die = false ) {
	echo '<pre>' . PHP_EOL;

	if ( func_num_args() === 0 ) {
		$bt     = debug_backtrace( DEBUG_BACKTRACE_IGNORE_ARGS, 1 );
		$caller = array_shift( $bt );
		$var    = basename( $caller['file'] ) . '::' . $caller['line'];
	}

	if ( is_bool( $var ) || empty( $var ) ) {
		var_dump( $var );
	} else {
		print_r( $var );
	}

	echo PHP_EOL . '</pre>';

	if ( $die ) {
		die;
	}
}