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I was just looking at this code and i don't understand what RETURN TRUE does or what the point of it is? Can someone please explain?
class Elephpant {
public $colour;
public function dance() {
echo "elephpant dances!\n";
return true;
}
}
Thankyou in advance ;-)
762
Sometimes a method/function returns a boolean value to indicate if the operation was succesfull. In the given example it always returns "TRUE".
To check if a function returns true , call the function and check if its return value is equal to true , e.g. if (func() === true) . If the function's return value is equal to true the condition will be satisfied and the if block will run.
return 0 in the main function means that the program executed successfully. return 1 in the main function means that the program does not execute successfully and there is some error. return 0 means that the user-defined function is returning false. return 1 means that the user-defined function is returning true.
returning true or false indicates that whether execution should continue or stop right there. So just an example <input type="button" onclick="return func();" /> Now if func() is defined like this function func() { // do something return false; }
It returns the boolean TRUE to whatever called dance(). That's all.
You would have to look at the consuming code to see if it makes something from it.
191
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