Medium
What does this example show?
<?php
class Period {
private \DateTimeInterface|null $startDate;
public function __construct(?\DateTimeInterface $startAt)
{
$this->startDate = $startAt;
}
public function getStartDate(): \DateTimeInterface
{
return $this->startDate;
}
}
$period = new Period(new \DateTimeImmutable("2020-11-26"));
$period->__construct();
$dateAsString = $period->getStartDate()?->format('Y');
echo $dateAsString;
Edit
2
Community EvaluationsNo one has reviewed this question yet, be the first!
5
Check if a value is in an array in PHP8
PHP code that throws an error.4
Is this function signature valid?
```php
<?php
interface Demo
{
public function bar(): ?mixed;
}
```4
Attributes are metadata that can be added to classes, properties, constants or methods.5
Which function signature is valid?5
PHP function with named and positional arguments.4
Use the match expression in PHP to print a string.