Unknown: Cannot set connection to blocking mode in Unknown on line 0

I'm trying to connect with my php script but it seems to fail. I get
this, does anyone know what this means and above all, what to do about
it?

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a b [ Di, 30 September 2008 09:23 ] [ ID #1971286 ]
Datenbanken » gmane.comp.db.postgresql.php » Unknown: Cannot set connection to blocking mode in Unknown on line 0

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