HELLOLoop 1 (Simple arithmetic operations): 10000000 iterations
Loop 2 (String concatenation): 1000000 iterations
Loop 3 (Array manipulation): 100000 iterations
Loop 4 (File I/O operations): 1000 iterations

Total run time: 0.1899 seconds

<br />
<b>Fatal error</b>:  Uncaught Error: Call to undefined function shell_exec() in /home/bosldata/public_html/test_server.php:56
Stack trace:
#0 /home/bosldata/public_html/test_server.php(260): getCpuLoad()
#1 {main}
  thrown in <b>/home/bosldata/public_html/test_server.php</b> on line <b>56</b><br />