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array_diff_key

The What

Syntax

array array_diff_key ( array $array1 , array $array2 [, array $... ] );

array_diff_key in PHP Manual

Description

The array_diff_key function compares the keys from array1 against the keys from array2 and returns the difference. This function is like array_diff() except the comparison is done on the keys instead of the values.

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