Medium
What does this code display?
<?php
echo $a?->b() ?? 'test';
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7
PHP code that throws an error.5
PHP function with named and positional arguments.4
Attributes are metadata that can be added to classes, properties, constants or methods.4
Use the match expression in PHP to print a string.3
PHP code that throws a TypeError4
Is this function signature valid?
```php
<?php
interface Demo
{
public function bar(): ?mixed;
}
```3
Check if a value is in an array in PHP