Question

I have a string that is formatted like this:

function1!!param1||ignore!!param2&&function2!!param1||ignore!!param2||ignore!!param3

The number of functions it has is unlimited (they are split with &&)

a basic function call that would be generated from the string above is:

function1($param1,$param2);

and the second one:

function2($param1,$param2,$param3);

the number of params is unlimited. (they aren’t called function and param that is only an example)

Happy to answer any questions!! I already tried exploding by && and then !! but I can’t quite figure out how to call a dynamic function with dynamic params.

Solution for 5.2:

function function1( $a1, $a2 ) {
    echo $a1 . $a2;
}

function function2( $a1, $a2, $a3 ) {
    echo " ".$a1 . $a2 . $a3;
}
function explodemap($val) {
        $explode = explode( "!!", $val );
        return $explode[1];
}
$functions = explode( "&&", 'function1!!param1||ignore!!param2&&function2!!param1||ignore!!param2||ignore!!param3' );

foreach( $functions as $function ) {
    $split = explode( "||", $function );
    $weird_excalmation_split = explode("!!", $split[0] );
    $params = array_slice( $split, 1 );

    $params = array_map( "explodemap", $params );

    $fn_name = $weird_excalmation_split[0];
    array_unshift( $params, $weird_excalmation_split[1]  );

    call_user_func_array( $fn_name, $params );
}

Answer 1

Use call_user_func_array:

function function1( $a1, $a2 ) {
    echo $a1 . $a2;
}

function function2( $a1, $a2, $a3 ) {
    echo $a1 . $a2 . $a3;
}

$functions = explode( "&&", 'function1!!param1||ignore!!param2&&function2!!param1||ignore!!param2||ignore!!param3' );

foreach( $functions as $function ) {
    $split = explode( "||", $function );
    $weird_excalmation_split = explode("!!", $split[0] );
    $params = array_slice( $split, 1 );

    $params = array_map( function($val) {
        return explode( "!!", $val )[1];
    }, $params );

    $fn_name = $weird_excalmation_split[0];
    array_unshift( $params, $weird_excalmation_split[1]  );

    call_user_func_array( $fn_name, $params );
}

//echoes param1param2param1param2param3