PHP control statement Switch_PHP tutorial

Switch Statement

Use the Switch statement if you want to selectively execute one of several blocks of code.

Use Switch statements to avoid lengthy if..elseif..else blocks.

Syntax

switch (expression){case label1:  code to be executed if expression = label1;  break;  case label2:  code to be executed if expression = label2;  break;default:  code to be executed  if expression is different   from both label1 and label2;}

Examples

How it works:

pairs expressions (usually Variable) performs a calculation

Compares the value of the expression with the value of the case in the structure

If there is a match, execute the code associated with the case

After the code is executed , the break statement prevents the code from jumping into the next case to continue execution

If no case is true, use the default statement

＜?phpswitch ($x){case 1:  echo "Number 1";  break;case 2:  echo "Number 2";  break;case 3:  echo "Number 3";  break;default:  echo "No number between 1 and 3";}?＞