title: Conditionals
Conditionals
Conditionals in PHP are written using the if
, elseif
, else
syntax. Using conditionals allows you to perform different actions depending on different inputs and values provided to a page at run time. In PHP conditionals are often referred to as control structures.
If
<?php
if ($_GET['name'] == "Codevarsity"){
echo "You viewed the Codevarsity Page!";
}
Elseif
<?php
if ($_GET['name'] == "Codevarsity"){
echo "You viewed the Codevarsity Page!";
} elseif ($_GET['name'] == "Codevarsityguide"){
echo "You viewed the Codevarsity Guide Page!";
}
Else
<?php
if ($_GET['name'] == "Codevarsity"){
echo "You viewed the Codevarsity Page!";
} elseif ($_GET['name'] == "Codevarsityguide"){
echo "You viewed the Codevarsity Guide Page!";
} else {
echo "You viewed a page that does not exist yet!";
}
Note
In cases where you have a lot of possible conditions you may want to use a Switch Statement.