effect of too many if_elseif_else statement in a program?

In my current project, I am having too many if_elseif_else statement in my program. Like this:

<?php
if(){
    if(){
        if(){
            if(){
                if(){
                    if(){
                        if(){
                            if(){

                            }
                            elseif(){
                                if(){

                                    }
                            else(){

                            }

                        }
                        else{

                        }
                    }
                    elseif(){
                        if(){

                        }
                    else{

                    }

                }
                elseif(){
                    if(){

                    }
                }
                else{

                }

            }
            else{

            }

        }

        else{

        }
    }
    else{

    }
}

else{}
?>

Am wondering if this has any effect on the program and should or not be avoided.

And also, is there a better way to do this?

I read this: Is using too many 'if' statements bad programming in Javascript?

this: Too many 'if' statements in Java? and

this: Too many if statements in Python

but I don't know if they're applicable to PHP.

Thanks.