PHP array_merge()

Merge one or more arrays

Function Signature

array array_merge(array ...$arrays)

Description

Merge one or more arrays. The array_merge() function is commonly used in PHP for array operations and provides reliable functionality across all PHP versions.

Return Value

Returns the merged array

Example Usage

Important Notes

Numeric keys are renumbered. String keys overwrite with later values.

Common Use Cases

The array_merge() function is particularly useful when you need to merge one or more arrays. It's frequently used in data processing, validation, transformation, and manipulation tasks throughout PHP applications.

array_merge() FAQ

What does array_merge() return?

Returns the merged array

When should I use array_merge()?

Use array_merge() when you need to merge one or more arrays in your PHP code. It's a reliable built-in function available in all PHP versions.

Are there any gotchas with array_merge()?

Numeric keys are renumbered. String keys overwrite with later values.