What fun is programming if you don't have control over the code ? Best coding practices include writing code that responds differently to different situations . Suppose you have a code let's say , which takes in the type of an employee in an office and accordingly outputs the salary for that position , lets say , what would you do ?
( Cookies again for C Programmers , this section is actually same as the if-else you were accustomed to before !! )
The most popular control statement in any programming language is the if-else construct . So how to use the if else construct ? Let's follow the following example and things will seem pretty easy then .
Algorithm :
Example
Lets say that we have a variable that stores the type of an employee at an office . We will check that variable and print out the corresponding salary .
$a = "General Manager";
if($a=="General Manager")
echo "1000000";
else if($a=="CEO")
echo "2000000";
else if($a=="Chairman")
echo "3000000";
?>
The above code outputs 1000000 .
Also an important aspect of php code is that it continues from the last block . Suppose you have a file containing both php and html . You have a block of php code , then you have some html and then again a block of php code , php will continue from the last line of the previous block . This will be clear from the following example .
Example
$a = 5 ;
if($a==5)
{
echo "The number is equal to 5
";
$a++;
echo "Now it's value is :- ".$a."
";
}
else if($a>5)
{
?>
( Cookies again for C Programmers , this section is actually same as the if-else you were accustomed to before !! )
The most popular control statement in any programming language is the if-else construct . So how to use the if else construct ? Let's follow the following example and things will seem pretty easy then .
Algorithm :
Example
Lets say that we have a variable that stores the type of an employee at an office . We will check that variable and print out the corresponding salary .
$a = "General Manager";
if($a=="General Manager")
echo "1000000";
else if($a=="CEO")
echo "2000000";
else if($a=="Chairman")
echo "3000000";
?>
The above code outputs 1000000 .
Also an important aspect of php code is that it continues from the last block . Suppose you have a file containing both php and html . You have a block of php code , then you have some html and then again a block of php code , php will continue from the last line of the previous block . This will be clear from the following example .
Example
$a = 5 ;
if($a==5)
{
echo "The number is equal to 5
";
$a++;
echo "Now it's value is :- ".$a."
";
}
else if($a>5)
{
?>
echo "The number is greater than 5
";
echo "Also this statement is in the second php block
";
}
else
{
echo "The number is lesser than 5
";
echo "Also this statement is in the second php block
";
}
?>
This code won't show any error even though the else-if block is spread across the two blocks . This is quite a flexible feature !! It comes in handy if you want to place some html code within the conditions or within an incomplete block .
