Condition Operators
if
Syntax options: * if (bool) statement; * if (bool) statement; else statement; * if (bool) statement; elseif statement; else statement;
Example:
> if (1==0) "1==0\n".echo(); else "none\n".echo();
none
> if (1==0) "1==0\n".echo(); elseif (2==2) "2==2\n".echo(); else "none\n".echo();
2==2
switch
Syntax options: * swtich (item) {case item1: statement; item2 statement; etc...;}; * swtich (item) {case item1: statement; item2 statement; etc...; default: statement;};
The following is a way to use a switch in place of if/ifelse/else sequence. The switch will compare until if arrives at a true.
> switch(true){case (1==0):"1==0\n".echo(); case (2==2): "2==2\n".echo(); default: "none\n".echo();};
2==2
?
Syntax options: * bool ? statement for true; * bool ? statement for true : statement for false; * bool ? : statement for false; * (<0)|(0)|(>0) ? statement for -1 : statement for 0 : statement for 1;
Example:
> 1?hi:by
hi
> 0?hi:by
by
> -55?hi:by:there
hi
> ("a"<=>"b")?a:e:b
a