wiki/content/20201110100120-php_nullsafe_operator.md

39 lines
601 B
Markdown
Raw Normal View History

2024-05-06 20:40:05 +00:00
---
2024-10-30 17:04:36 +00:00
date: 20201110
2024-05-06 20:40:05 +00:00
id: d07536b9-8d42-4b60-92a5-0348acb0a3db
title: PHP nullsafe operator
---
# Description
Introduced in [PHP 8.0](20201109133834-php_8_0), nullsafe operators[^1]
enable you to safely use methods that may return `null`.
# Syntax
``` php
class bar
{
public function excellent(): string
{
return "excellent";
}
}
class foo
{
public function getBarOrNull(): ?bar
{
return rand(0, 1) === 1 ? new bar() : null;
}
}
$foo = new foo();
echo $foo->getBarOrNull()?->excellent();
```
# Footnotes
[^1]: <https://wiki.php.net/rfc/nullsafe_operator>