How to use the if-else and if-elseif statements in PHP
We use conditional statements in programming to apply different actions on different conditions. if, if-else, if-elseif-else statements are conditional statements in PHP.
The if statement syntax
if (specific condition) {execute code if the condition is true;}
Example
The if condition checks if the age is greater than 60. If this condition is true, it prints Retired.
<?php$age = 61;if($age > 60){echo 'Retired'; // Display Retired if age is greater than 60}?>
The if-else statement syntax
if (specific condition) {execute code if the condition is true;}else{execute code if the condition is false;}
Example
The if condition checks if the age is greater than 60 or not. If the condition is true, then it will print Retired. Otherwise, Not Retired will be printed.
<?php$age = 40;if($age > 60){echo 'Retired'; // Display Retired if age is greater than 60} else{echo 'Not Retired'; // Display Not Retired if age is less than 60}?>
The if-elseif-else statement syntax
if (specific condition) {execute code if the condition is true;}elseif(condition){execute code if the previous condition is falseand this condition is true;}else{execute code if the above conditions are false;}
Example
The if condition checks if the age is greater than 60 or not. If the condition is true, it will print Retired. Otherwise, if the age is greater than 40 and not greater than 60, Senior Employee is printed. Lastly, if the first two conditions are false, Junior Employee will be printed.
<?php$age = 40;if($age > 60){echo 'Retired'; // Display Retired if age is greater than 60} elseif($age > 40){echo 'Senior Employee'; // Display Senior Employee if age is greater than 40}else{echo 'Junior Employee';}?>
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