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PHP array_uintersect_assoc() Function

PHP Array Reference PHP Array Reference

Example

Compare the keys and values of two arrays (using a built-in function to compare the keys and a user-defined function to compare the values) and return the matches:

<?php
function myfunction($a,$b)
{
if ($a===$b)
  {
  return 0;
  }
  return ($a>$b)?1:-1;
}

$a1=array("a"=>"red","b"=>"green","c"=>"blue");
$a2=array("a"=>"red","b"=>"blue","c"=>"green");

$result=array_uintersect_assoc($a1,$a2,"myfunction");
print_r($result);
?>

Run example »

Definition and Usage

The array_uintersect_assoc() function compares the keys and values of two or more arrays, and returns the matches.

Note: This function uses a built-in function to compare the keys, and a user-defined function to compare the values!

This function compares the keys and values of two (or more) arrays, and return an array that contains the entries from array1 that are present in array2, array3, etc.


Syntax

array_uintersect_assoc(array1,array2,array3...,myfunction)

Parameter Description
array1 Required. The array to compare from
array2 Required. An array to compare against
array3,... Optional. More arrays to compare against
myfunction Required. A string that define a callable comparison function. The comparison function must return an integer <, =, or > than 0 if the first argument is <, =, or > than the second argument

Technical Details

Return Value: Returns an array containing the entries from array1 that are present in all of the other arrays
PHP Version: 5+


PHP Array Reference PHP Array Reference

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