Question

How to use switch case statement in PHP

Answer 1

$n = 1;
switch ($n) 
{
    case 0:
        echo "n = 0";
        break;
    case 1:
        echo "n = 1";
        break;
    case 2:
        echo "n = 2";
        break;
}

 
/*
run: 

n = 1 

*/

 

70+ SQL courses for beginners and professionals

Answer 2

$s = "bbb";
switch ($s) 
{
    case "aaa":
        echo "s = 'aaa'";
        break;
    case "bbb":
        echo "s = 'bbb'";
        break;
    case "ccc":
        echo "s = 'ccc'";
        break;
}

 
/*
run: 

s = 'bbb'  

*/

 

70+ SQL courses for beginners and professionals

Answer 3

$n = 1;
switch ($n) 
{
    case 0:
        echo "n = 0 <br />";
    case 1:
        echo "n = 1 <br />";
    case 2:
        echo "n = 2 <br />";
}

 
/*
run: 

n = 1
n = 2 

*/

 

70+ SQL courses for beginners and professionals

Answer 4

$n = 1;
switch ($n) 
{
    case 0:
    case 1:
    case 2:
        echo "n < 3";
        break;
    case 3:
        echo "n = 3";
}

 
/*
run: 

n < 3  

*/

 

70+ SQL courses for beginners and professionals

Answer 5

$n = 100;
switch ($n) 
{
    case 0:
        echo "n = 0";
        break;
    case 1:
        echo "n = 1";
        break;
    case 2:
        echo "n = 2";
        break;
    default:
       echo "n is not equal to 0, 1 or 2";
}

 
/*
run: 

n is not equal to 0, 1 or 2   

*/

 

70+ SQL courses for beginners and professionals

Answer 6

$n = 100;
switch ($n):
    case 0:
        echo "n = 0";
        break;
    case 1:
        echo "n = 1";
        break;
    case 2:
        echo "n = 2";
        break;
    default:
       echo "n is not equal to 0, 1 or 2";
endswitch;

 
/*
run: 

n is not equal to 0, 1 or 2   

*/

 

70+ SQL courses for beginners and professionals

Answer 7

$s = "abc";
switch($s)
{
    case 'abc';
    case 'def';
    case 'ghijk';
        echo 'abc - def - ghijk';
        break;
    default;
        echo 'default';
    break;
}

 
/*
run: 

abc - def - ghijk  

*/

 

70+ SQL courses for beginners and professionals

Answer 8

$n = 0;
switch(++$n) 
{
    case 3: echo 3; break;
    case 2: echo 2; break;
    case 1: echo 1; break;
    default: echo "default"; break;
}

 
/*
run: 

1 

*/

 

70+ SQL courses for beginners and professionals