Can I use operators as function callback in PHP?

Question

Suppose I\'ve the following function:

function mul()
{
   return array_reduce(func_get_args(), \'*\');
}

Is is possible to use the * operat

Answer 1

The code you have provided wouldn't work but you can do something similar.

function mul()
{
   return array_reduce(func_get_args(), create_function('$a,$b', 'return "$a * $b'));
}

create_function allows you to create short function (one liner), if your function is getting longer then one statement it's better to create a real function to do the job.

Please also note the single quote are important because you are using dollar symbol so you don't want PHP to try to replace them.