What changes or improvements were made to PHP in version 7 that allow for more complex method and array combinations?

In PHP version 7, improvements were made to the language that allow for more complex method and array combinations through the introduction of the spaceship operator (<=>) and the null coalescing operator (??). These operators provide more concise and expressive ways to compare values and handle null values within arrays. 

// Example of using the spaceship operator (&lt;=&gt;) to compare values in an array
$numbers = [3, 1, 5, 2];
usort($numbers, function($a, $b) {
    return $a &lt;=&gt; $b;
});
print_r($numbers);

// Example of using the null coalescing operator (??) to handle null values in an array
$user = [
    &#039;name&#039; =&gt; &#039;John Doe&#039;,
    &#039;email&#039; =&gt; null,
    &#039;phone&#039; =&gt; &#039;555-5555&#039;
];
$email = $user[&#039;email&#039;] ?? &#039;No email provided&#039;;
echo $email;

Keywords

PHP 7 method chaining array functions performance improvements scalar type declarations

Related Questions