Alternative loadStripeLibrary() method for the Stripe gateway class in PMPro. Used for debugging.

alternative_loadStripeLibrary.php

/**
 * Alternative loadStripeLibrary() method that will die and output
 * the location of the file that previously loaded a different version
 * of the Stripe API library.
 * 
 * THIS CODE IS FOR DEBUGGING PURPOSES ONLY
 *
 * Find the loadStripeLibrary() method of classes/gateways/class.pmprogateway_stripe.php
 * and replace with this version. Then attempt to checkout and take note.
 */
function loadStripeLibrary() {
	//load Stripe library if it hasn't been loaded already (usually by another plugin using Stripe)
	if ( ! class_exists( "Stripe\Stripe" ) ) {
		require_once( PMPRO_DIR . "/includes/lib/Stripe/init.php" );
	} else {
		$previously_loaded_class = new \ReflectionClass( 'Stripe\Stripe' );
		echo "The Stripe API library has already been loaded.<br />";
		echo "The file that loaded it may appear here:" . $previously_loaded_class->getFileName();
		exit;
	}
}