Some SPL-Classes not shown on phpinfo()

[bolidor]

Hi!
I'm using PHP 5.0.3 on MacOsX 10.3.5
I noticed that not all of the SPL Classes and interfaces as described on http://www.php.net/~helly/php/ext/spl/ are shown on my phpinfo()-webpage. What irritates me is, that the code with not displayed interfaces is running fine.

Could somebody help me to stop that irritating experience? 😕

Mat