issue #19 - value should be tested as not null at least

if the value is null, then it should be ignored otherwise it is passed as an argument to the SoapClient
in addition, default value should not be tested as not empty as for the passed options but as not null too

Author: mikaelcom

src/AbstractSoapClientBase.php

@@ -68,9 +68,9 @@ public function initSoapClient(array $options)
         $wsdlOptions = [];
         $defaultWsdlOptions = static::getDefaultWsdlOptions();
         foreach ($defaultWsdlOptions as $optionName => $optionValue) {
-            if (array_key_exists($optionName, $options)) {
+            if (array_key_exists($optionName, $options) && !is_null($options[$optionName])) {
                 $wsdlOptions[str_replace(self::OPTION_PREFIX, '', $optionName)] = $options[$optionName];
-            } elseif (!empty($optionValue)) {
+            } elseif (!is_null($optionValue)) {
                 $wsdlOptions[str_replace(self::OPTION_PREFIX, '', $optionName)] = $optionValue;
             }
         }