[PHP-INSTALL] apache and FOR

[guestapo]

after installing php 5.0.5 to apache server 2.0.x everything seemed to work fine. 
Except for one detail: No script can execute the bronchus FOR 
(example: for($i=0; $i>=6; $i++){echo "test";} 
i tried to install it into apache  1.3.X and the same thing happend. Can anyone help?