PHP If, else and elseif

PHP Tutorial » If, else, elseif statement in PHP - examples

Conditional PHP statements
Very often, when writing code, you want to perform different actions for different conditions. You can use conditional statements in your code to do this.

In PHP we have the following conditional statements:

if statement - executes some codes if a condition is true
if ... else statement - executes a certain code if a condition is true and another code if that condition is false
if ... elseif ... else statement - executes different codes for more than two conditions
switch statement - selects one of the many blocks of code to execute.

PHP - If statement

The if statement executes a code if a condition is true.

Syntax:
if (state) {
code to be executed if the condition is true;
}

Example 1: Create if statement:

<? php
$t = date("H");
if ($t <"20") {
echo "Have a good day!";
}
?>

PHP - The if ... else statement

The if ... else statement executes one code if one condition is true and another code if that condition is false.

Syntax
if (state) {
code to be executed if the condition is true;
} else {
code to be executed if the condition is false;
}

Example 2: Create if ... else statement:

<? php
$t = date("H");
if ($t <"20") {
echo "Have a good day!";
} else {
echo "Good night!";
}
?>

PHP - The if ... elseif ... else statement

The if ... elseif ... else statement executes different codes for more than two conditions.

Syntax
if (state) {
code to be executed if this condition is true;
} elseif (stand) {
code that must be executed if the first condition is false and this condition is true;
} else {
code to execute if all conditions are false;
}

Example 3: Create if ... elseif ... else statement:

<? php
$t = date("H");
if ($t <"10") {
echo "Good morning!";
} elseif ($t <"20") {
echo "Good day!";
} else {
echo "Good night!";
}
?>

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PHP if, else and elseif Statements - php tutorial

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