Question { Wipro, 32006 }

What is the difference between for & foreach, exec &
system?

Answer

Ofcourse the syntax is completely different but the only
difference is
foreach simply gives an easy way to iterate over arrays.
foreach works only on arrays,
and will issue an error when you try to use it on a variable
with a different data type or an uninitialized variable
where as for loop works on the count length or what ever
please look in to php.net site for reference.

Thanks,
Raj

Question { Wipro, 32006 }

What is the difference between for & foreach, exec &
system?

Answer

And i have read some where i could not remember the source
but foreach is faster than the for loop.
Thanks,
Raj