simple "while" loop terminated for no reason

hi, i'm using php ver 4.3.1 in winXP o/s. my html output always halted halfway from execution. i find out that it has got to do with the while loop. for simplicity, i created a test php file that will execute a loop for 1000 times and print out some strings. however, even before it reach 1000, it stops. there is no error given. ======================== the php file as below: <html> <head><title>test</title></head> <body> <?php $count = 0; while ($count < 1000) { print ++$count . ", field01, field02, field03, field04, field05, field06, field07, field08, field09<br>\n"; } ?> </body> </html> ======================== the html result generated as below: <html> <head><title>test</title></head> <body> 1, field01, field02, field03, field04, field05, field06, field07, field08, field09<br> 2, field01, field02, field03, field04, field05, field06, field07, field08, field09<br> 3, field01, field02, field03, field04, field05, field06, field07, field08, field09<br> 4, field01, field02, field03, field04, field05, field06, field07, field08, field09<br> : : : 933, field01, field02, field03, field04, field05, field06, field07, field08, field09<br> Note:: it ends here. no error displayed. ======================== all kind advices are appreciated. thanks in advance. regards, raymond