Switch Case Control Structure:

Almost every modern language supports switch case control structure. It is similar to if statements. Switch case is useful when we need to compare a single variable with multiple possible values.

We should know how the switch case works, in switch case every case is considered or checked once and if the condition found true then PHP starts executing the statements until it found a break statement or the end of the switch case block. So, it is always better to put a break statement in case statement.

Example:

$a=10;

switch($a)

case($a%2==0):

echo"Even Number";

break;

case($a%2!==0):

echo "Odd Number";

break;

Output:

Even Number

Example:

<?php

$a=12;

switch($a)

default:

echo "Default";

break;

case 1:

echo "One";

break;

case 2:

echo "Two";

break;

Output:

Default

Example:

<?php

$a=1;

switch($a)

case 1:

echo "One";

case 2:

echo "Two";

default:

echo "Default";

Output:

OneTwoDefault

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