Fix getAmount for non decimal separator (CRM_Core_Payment->getAmount returns a localized format)

Author: mattwire

CRM/Core/Payment/OmnipayMultiProcessor.php

@@ -635,6 +635,17 @@ protected function getCreditCardOptions($params) {
     return $creditCardOptions;
   }
 
+  /**
+   * Get the amount as a float
+   * @param array $params
+   *
+   * @return mixed
+   */
+  protected function getAmount($params = []) {
+    $params['amount'] = $params['amount'] ?? 0.0;
+    return filter_var($params['amount'], FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION);
+  }
+
   /**
    * This function checks to see if we have the right config values.
    *