Explain conditional statement in PHP

 

Explain conditional statement in PHP

Conditional statements in PHP allow you to make decisions in your code based on certain conditions. These statements enable your program to perform different actions based on whether a condition is true or false. The most commonly used conditional statements in PHP are: 

1. if statement: The `if` statement is used to execute a block of code if a specified condition evaluates to true. ```php 0) { echo "The number is positive."; } ?> ``` In the example above, the code inside the `if` statement will be executed only if the condition `$num > 0` is true. If the condition is false, the code block will be skipped. 

2. if...else statement: The `if...else` statement allows you to execute one block of code if the condition is true and a different block of code if the condition is false. ```php 0) { echo "The number is positive."; } else { echo "The number is not positive."; } ?> ``` In this example, if the condition `$num > 0` is true, the message "The number is positive." will be displayed. Otherwise, the message "The number is not positive." will be displayed. 

3. if...elseif...else statement: The `if...elseif...else` statement allows you to test multiple conditions and execute different blocks of code based on the first condition that evaluates to true. ```php 0) { echo "The number is positive."; } elseif ($num < 0) { echo "The number is negative."; } else { echo "The number is zero."; } ?> ```