if-else.php

<?php


// Simple IF statements

If($contactId == 1234) {
	$tagId = 26;
	}
	
If($contactId !== 1234) {   // ! means Not
	$tagId = 28;
	}
	
If($tagId == 26 && $age >= 18) {     // && means AND  || means or
	echo 'No need for parent or guardian to sign';
	}

// If ELSE statment

If($tagId == 26 || $age >= 18) {    
		echo 'No need for parent or guardian to sign';
	} else {
		echo 'Parent or guardian must also sign';
	}


// Nested If statements

If($breed == 'dog' ) {    
		echo 'This is a canine';
	} else {
		If($breed == 'horse') {    
				echo 'This is an equine';
			} else {
				echo 'We are not sure what you are';
		}
}