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What will be the output of the following PHP code (26)?

103. What will be the output of the following PHP code?

<?php declare(strict_types = 1);

function details(string $name, int $age){
    echo "Name: $name, Age: $age";
}
details("Alvin", "21");
?>

1. Name: Alvin, Age: 21
2. Name: Alvin, Age:
3. Name: Alvin, Age: 0
4. Fatal Error

Answer: D) Fatal Error

Explanation:

In the PHP Script, we are using the strict declaration, it will return a Fatal Error if the datatype of the function definition and calling mismatches. Thus, the output will be "Fatal Error".

The output is:

PHP Fatal error: Uncaught TypeError: Argument 2 passed to details() must be of the type integer, 
string given, called in /home/fBGU1n/prog.php on line 6 and defined in 
/home/fBGU1n/prog.php:3 Stack trace: #0 /home/fBGU1n/prog.php(6): details('Alvin', '21') #1 {main} thrown 
in /home/fBGU1n/prog.php on line 3