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Type Hinting was introduced in which version of PHP?

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in PHP by (87.1k points)
Type Hinting was introduced in which version of PHP?

(a) PHP 4

(b) PHP 5

(c) PHP 5.3

(d) PHP 6

I had been asked this question in final exam.

This intriguing question comes from Functions in chapter Arrays and Functions of PHP

1 Answer

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Best answer
Correct option is (b) PHP 5

The best I can explain: PHP 5 introduced the feature of type hinting. With the help of type hinting, we can specify the expected data type of an argument in a function declaration. First valid types can be the class names for arguments that receive objects and the other are array for those that receive arrays.

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