Not published
What does this example show?
$b= 12;
echo $a ?? $b;``
Author: W3D TeamStatus: Not publishedQuestion passed 121 times
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4
Is this function signature valid?
```php
<?php
interface Demo
{
public function bar(): ?mixed;
}
```4
Use the match expression in PHP to print a string.3
PHP code that throws a TypeError5
PHP function with named and positional arguments.4
Attributes are metadata that can be added to classes, properties, constants or methods.4
Which function signature is valid?7
PHP code that throws an error.