Easy
What will this script display ?
<?php
$a = 1;
$b = 2;
echo "sum: " . $a + $b;
Author: W3D TeamStatus: PublishedQuestion passed 1141 times
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8
PHP code that throws an error.4
Is this function signature valid?
```php
<?php
interface Demo
{
public function bar(): ?mixed;
}
```5
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Which function signature is valid?4
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PHP function with named and positional arguments.