PHP Logical Operators
PHP Logical Operator are and or not
| Example | Name | Result |
|---|---|---|
| $a and $b | And | TRUE if both $a and $b are TRUE. |
| $a or $b | Or | TRUE if either $a or $b is TRUE. |
| $a xor $b | Xor | TRUE if either $a or $b is TRUE, but not both. |
| ! $a | Not | TRUE if $a is not TRUE. |
| $a && $b | And | TRUE if both $a and $b are TRUE. |
| $a || $b | Or | TRUE if either $a or $b is TRUE. |
Example for PHP Logical Operators
<?php
$a = true;
$b = false;
if($a && $b) {
echo ‘Both $a and $b are true. <br />’;
}
// Print the statement if $foo OR $bar is true
if($a || $b) {
echo ‘At least one of the variables is true. <br />’;
}
// Print the statement if $foo OR $bar is true, but not both
if($a xor $b) {
echo ‘One variable is true, and one is false. <br />’;
}
// Print the statement if $bar is NOT true
if(!$b) {
echo ‘$b is false. <br />’;
}
?>