Switch statements in PHP are used to perform different actions based on multiple different conditions.
Switch Statement
If you want to selectively execute one of several blocks of code, use a Switch statement.
use a Switch statement to avoid lengthy if. ElseIf.. else code block.
Syntax
Copy Code code as follows:
switch (expression)
{
Case Label1:
Code to is executed if expression = Label1;
Break
Case LABEL2:
Code to is executed if expression = Label2;
Break
Default
Code to IS executed
If expression is different
From both Label1 and Label2;
}
Instance
working principle:
evaluates an expression (usually a variable)
compares the value of an expression with the value of a case in a structure
If there is a match, the code associated with the case is executed
After the
code executes, the break statement blocks the code from jumping into the next case to continue execution
If no case is true, use the default statement
Copy Code code as follows:
<?php
Switch ($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";
}
?>
</body>
