PHP MYSQL - Operators - 5.7 Array Operators
PHP Array Operators
The PHP array operators are used to compare arrays.
| Operator | Name | Example | Result | |
|---|---|---|---|---|
| + | Union | $x + $y | Union of $x and $y | |
| == | Equality | $x == $y | Returns true if $x and $y have the same key/value pairs | |
| === | Identity | $x === $y | Returns true if $x and $y have the same key/value pairs in the same order and of the same types | |
| != | Inequality | $x != $y | Returns true if $x is not equal to $y | |
| <> | Inequality | $x <> $y | Returns true if $x is not equal to $y | |
| !== | Non-identity | $x !== $y | Returns true if $x is not identical to $y |
<!DOCTYPE html>
<html>
<body>
<?php
$x = array("a" => "red", "b" => "green");
$y = array("c" => "blue", "d" => "yellow");
print_r($x + $y); // union of $x and $y
?>
</body>
</html>
Output:
Array ( [a] => red [b] => green [c] => blue [d] => yellow )
Ex:2
<!DOCTYPE html>
<html>
<body>
<?php
$x = array("a" => "red", "b" => "green");
$y = array("c" => "blue", "d" => "yellow");
var_dump($x == $y);
?>
</body>
</html>
Output:
bool(false)
Dear student try remain operators .