Description:
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The max_execution_time option in php.ini doesn't work in php built-in web server
The environment is windows 7 sp1 x64 ultimate with php-5.6.19-nts-Win32-VC11-x86
 
I use a new php.ini-development as my php.ini file and set max_execution_time to zero. Then make the scripts below as index.php.
Run the server: php -S localhost:8000 index.php
Then visit localhost:8000
After 60s it doesn't work anymore, and shows 'Fatal error: Maximum execution time of 60 seconds exceeded in D:\********\index.php on line 4'

Test script:
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<?php
while(1) {
echo date('H:i:s').'<br />';
sleep(5);ob_flush();flush();}

Expected result:
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As I set max-execution-time to zero, the script should run forever.However it only works for 60s. When I set max-execution-time to 600, it still only works for 60s.
After 60s it doesn't work anymore, and shows 'Fatal error: Maximum execution time of 60 seconds exceeded in D:\********\index.php on line 4'

Actual result:
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It stops after 60s.

When I run the server with php -S localhost:8000
and visit localhost:8000
It doesn't stop anymore even my max-execution-time is only 5