Question

The following PHP code is working as expected. I need to echo “copy error” message when the code is unable to execute the command in 4 attempts.

for($num_tries = 0 ; $num_tries < 4 ; $num_tries++)
{
    $cloudcmd = "cp abc xyz ";
    system($cloudcmd,$status);
    if($status != 0)
    {
        sleep(3) ;
        continue ;
    }
    break ;
}

I tried to add echo command after break; but it does not seem to work.

Answer 1

Strictly, you don’t need to introduce additional variables and checks to do this.

Keeping it simple, you can inspect the value of the for loop variable $num_tries once outside the for loop:

if($num_tries==4)....

You also have the $status variable available after the for loop.

if($status!=0)....