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PHP 8 - Conditional
Last modified: April 02, 2022When we write a program, we need to perform different actions based on conditons. You maty be following conditional statement
- if statement - executes if a condition is true
- if...else statement - executes if a condition is true and another code one is false
- if...elseif...else allows multiple conditions
- selects one of many blocks of code to be executed
if...else...elseif Statements
if...else
<?php
$age = 65;
if ($age < 65) {
echo "young";
} else {
echo "elderly";
}
?>
if...else...elseif
<?php
$age = 30;
if ($age > 35) {
echo "young";
}
else if ($age > 50) {
echo "old";
} else {
echo "elderly";
}
?>
switch Statements
switch is more tidy if you have few more statements to be executed for a condition
<?php
$day = "sunday";
switch ($day) {
case "sunday":
echo "Today is Sunday";
break;
case "monday":
echo "Today is Monday";
break;
default: //if no case equals to any condition, then PHP go to default
echo "No Day";
}
?>
