Go Back   Wiki NewForum | Latest Entertainment News > Career Forum & Tips > Tech Forum & Tutorial > PHP Forum & Tutorial


PHP If...Else Statements


Reply
Views: 1295  
Thread Tools Rate Thread Display Modes
  #1  
Old 05-04-2009, 04:50 PM
welcomewiki welcomewiki is offline
Member
 
Join Date: Dec 2008
Location: India
Posts: 81,271
Default PHP If...Else Statements

The if, elseif and else statements in PHP are used to perform different actions based on different conditions.
Conditional Statements

Very often when you write code, you want to perform different actions for different decisions.



You can use conditional statements in your code to do this.


  • if...else statement - use this statement if you want to execute a set of code when a condition is true and another if the condition is not true
  • elseif statement - is used with the if...else statement to execute a set of code if one of several condition are true
The If...Else Statement

If you want to execute some code if a condition is true and another code if a condition is false, use the if....else statement.
Syntax

if (condition)
code to be executed if condition is true;
else
code to be executed if condition is false; Example

The following example will output "Have a nice weekend!" if the current day is Friday, otherwise it will output "Have a nice day!":





$d=date("D");
if ($d=="Fri")
echo "Have a nice weekend!";
else
echo "Have a nice day!";
?>


If more than one line should be executed if a condition is true/false, the lines should be enclosed within curly braces:



$d=date("D");
if ($d=="Fri")
{
echo "Hello!
";
echo "Have a nice weekend!";
echo "See you on Monday!";
}
?>

The ElseIf Statement

If you want to execute some code if one of several conditions are true use the elseif statement
Syntax

if (condition)
code to be executed if condition is true;
elseif (condition)
code to be executed if condition is true;
else
code to be executed if condition is false; Example

The following example will output "Have a nice weekend!" if the current day is Friday, and "Have a nice Sunday!" if the current day is Sunday. Otherwise it will output "Have a nice day!":

$d=date("D");
if ($d=="Fri")
echo "Have a nice weekend!";
elseif ($d=="Sun")
echo "Have a nice Sunday!";
else
echo "Have a nice day!";
?>


Reply With Quote
Reply

New topics in PHP Forum & Tutorial


Thread Tools
Display Modes Rate This Thread
Rate This Thread:



Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
WikiNewForum)