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Which method, introduced in PHP8, allows you to determine if a string contains a substring?
Author: DamienStatus: PublishedQuestion passed 69 times
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4
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Which function signature is valid?7
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PHP function with named and positional arguments.4
Attributes are metadata that can be added to classes, properties, constants or methods.4
Is this function signature valid?
```php
<?php
interface Demo
{
public function bar(): ?mixed;
}
```