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PHP array_uintersect_uassoc() Function Usage and Example

The array_uintersect_uassoc() function calculates the intersection of arrays with index checking, using separate callback functions to compare data and indices

Syntax

array_uintersect_assoc(　$array1,　$array2　[,　$array3　...,　$func1],　$func2　);

Definition and Usage

This function returns an array containing array1of all values, these values appear in all parameters array2、array3Through additional index checks, callback function comparisons, and index comparisons to return the intersection of multiple arrays.

Parameter

Serial Number	Parameters and Description
1	array1(Required) It specifies an array.
2	array2(Required) It specifies the array to be compared with the first array.
3	array3(Optional) It specifies the array to be compared with the first array.
4	func1(Required) The name of the user-defined function used to compare array keys.
5	func2(Required) The name of the user-defined function used to compare array values.

Online Example

The array_uintersect_uassoc function uses two strcasecmp functions to compare the keys and values of two arrays, calculating the intersection of two arrays

Example

<?php
　　　$input1　=　array("a"=>"green",　"b"=>"brown",　"c"=>"blue",　"red");
　　　$input2　=　array("a"=>"GREEN",　"B"=>"brown",　"yellow",　"red");
　　　
　　　print_r(array_uintersect_uassoc($input1,　$input2,　"strcasecmp",　"strcasecmp"));
?>

Test and see‹/›

Output Result：

Array　(　[a]　=>　green　[b]　=>　brown　)

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