php else

<?php
if ($a > $b) {
    echo "a is bigger than b";
} elseif ($a == $b) {
    echo "a is equal to b";
} else {
    echo "a is smaller than b";
}
?>

if (condition) {

    code to be executed if this condition is true;

 }
elseif (condition) {

    code to be executed if first condition is false and this 
  condition is true;

 } else {

  code to be executed if all conditions are false;

}

<?php

$t = date("H");


if ($t < "20") {

 
echo "Have a good day!";

 }
else {

  echo 
"Have a good night!";

 }

?>
 

<?php

$t = date("H");

 
if ($t < "10") {

  echo "Have a good morning!";

 }
elseif ($t < "20") {

    echo "Have a good day!";

 } else {

  echo "Have a good night!";

 }

?>
 

<?php
if ($a > $b) {
  echo "a is greater than b";
} else {
  echo "a is NOT greater than b";
}
?>

if (condition) {

    code to be executed if condition is true;

 }
else {

  code to be executed if condition is false;

 }