Hi Please help me in executing more than one method at a time in PHP.

Below is example:

```
<?php
function writeName()
{
sleep(3);
echo "Kai Jim Refsnes";
}
function b(){
sleep(3);
echo"b";
}
b();
writeName());
?>

```

Here above program take 6 sec to execute.But I want to run my both method simultaneously so that program should execute with in 3 sec(Multi threading).