Typed Arrays in PHP

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Tim Bezhashvyly:

Typed arrays exist in PHP, at least to some degree. This wonderful feature sneaked in as a side-effect of variadic functions that were added to the language in PHP 5.6.

Turns out one can actually typehint the variadic parameter, as so:

<?php
function foo (Product ...$products)
{
     /* ... */
}

Only works if your function has one argument though (or if the “typed array” is the last parameter to your function). Otherwise you’ll get a Fatal Error Only the last parameter can be variadic

Typed Arrays in PHP →

About the Author

Bramus is a Freelance Web Developer from Belgium. From the moment he discovered view-source at the age of 14 (way back in 1997), he fell in love with the web and has been tinkering with it ever since (more …)

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