PHP If…Else

The if...else statement executes one block of code if a condition is true and another block if the condition is false.

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Syntax

if (condition) {
  // Code executed if the condition is true
} else {
  // Code executed if the condition is false
}

PHP
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if (condition) {  // Code executed if the condition is true} else {  // Code executed if the condition is false}

Example

Here’s an example based on motorcycles. If you own fewer than 5 motorcycles, it suggests buying a Yamaha; otherwise, it suggests riding a Honda:

$motorcycleCount = 3; // Change this number to test different outputs

if ($motorcycleCount < 5) {
  echo "Why not add a Yamaha to your collection?";
} else {
  echo "Take your Honda for a spin!";
}

PHP
 
$motorcycleCount = 3; // Change this number to test different outputs​if ($motorcycleCount < 5) {  echo "Why not add a Yamaha to your collection?";} else {  echo "Take your Honda for a spin!";}

PHP – The if…elseif…else Statement

The if...elseif...else statement allows you to evaluate multiple conditions and execute different blocks of code accordingly.

Syntax

if (condition) {
  // Code executed if this condition is true
} elseif (condition) {
  // Code executed if the first condition is false and this one is true
} else {
  // Code executed if all conditions are false
}

PHP
 
if (condition) {  // Code executed if this condition is true} elseif (condition) {  // Code executed if the first condition is false and this one is true} else {  // Code executed if all conditions are false}

Example

Consider this example based on cars. If someone has fewer than 2 cars, it suggests a Tesla; if they own between 2 and 5, it suggests a Toyota; otherwise, it recommends driving a BMW:

$carCount = 4; // Change this number to test different outputs

if ($carCount < 2) {
  echo "Maybe consider buying a Tesla.";
} elseif ($carCount <= 5) {
  echo "How about getting a reliable Toyota?";
} else {
  echo "Enjoy your luxurious BMW!";
}

PHP
 
$carCount = 4; // Change this number to test different outputs​if ($carCount < 2) {  echo "Maybe consider buying a Tesla.";} elseif ($carCount <= 5) {  echo "How about getting a reliable Toyota?";} else {  echo "Enjoy your luxurious BMW!";}

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