Question

I am trying to do something like this:

//function name

$str = 'bla()';


//make function with string as name
function $str{
      echo 'yey';
}

//Call the function by string name
bla();

Answer 1

You could use eval() to attempt this task. But I really do NOT suggest it:

// name of the function
$str = 'bla';
// php code you want to execute inside
$inside = '';
eval("
    function $str() { $inside }
");

Or you could also use an anonymous function:

$name = function() {
    // code
};
// execution
$name();

Als if you are just trying to call a dynamic function just use call_user_func() like this:

// name of the function
$str = 'bla';
// paramters to the function
$param = array();
call_user_func($str, $param);

But I think you are doing something wrong. This kind of “hacks” are sign of bad application architecture.

References

• eval()
• call_user_func()
• Anonymous functions