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How do I pass elements of an array as individual arguments to a function in PHP?

Susan Sarandon
Susan SarandonOriginal
2024-11-08 13:42:01676browse

How do I pass elements of an array as individual arguments to a function in PHP?

Passing Arrays as Individual Arguments in PHP

In PHP, it is often necessary to pass arrays as arguments to functions. However, there are instances when we may want to dereference the array into individual arguments.

Solution

As of PHP 5.6 , the ... token, also known as the "splat operator," provides an elegant solution for passing arrays as individual arguments. This token allows you to "splat" an array into a list of arguments, as demonstrated below:

Important Notes:

  • Indexed array items are mapped to function arguments by their position, not their keys.
  • Associative array items can be unpacked into named arguments using PHP 8's named arguments feature.
  • The ... token is the fastest method for argument unpacking.

Type Hinting

You can type-hint the ... token to ensure that all passed values match a specific type. This is useful for ensuring an array contains items of a particular type:

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