<p>In through <code>php_info()</code> where the WSDL cache is held (<code>/tmp</code>), but I don't necessarily know if it is safe to delete all files starting with WSDL. </p>

<p>Yes, I <em>should</em> be able to just delete everything from <code>/tmp</code>, but I don't know what else this could effect if I delete any all WSDL files.</p>

You can safely delete the WSDL cache files. If you wish to prevent future caching, use:
```
```
ini_set("soap.wsdl_cache_enabled", 0);
```
```
or dynamically:
```
```
$client = new SoapClient('http://somewhere.com/?wsdl', array('cache_wsdl' => WSDL_CACHE_NONE) );
```
```