Tutorials References Menu

PHP Tutorial

PHP HOME PHP Intro PHP Install PHP Syntax PHP Comments PHP Variables PHP Echo / Print PHP Data Types PHP Strings PHP Numbers PHP Math PHP Constants PHP Operators PHP If...Else...Elseif PHP Switch PHP Loops PHP Functions PHP Arrays PHP Superglobals PHP RegEx

PHP Forms

PHP Form Handling PHP Form Validation PHP Form Required PHP Form URL/E-mail PHP Form Complete

PHP Advanced

PHP Date and Time PHP Include PHP File Handling PHP File Open/Read PHP File Create/Write PHP File Upload PHP Cookies PHP Sessions PHP Filters PHP Filters Advanced PHP Callback Functions PHP JSON PHP Exceptions

PHP OOP

PHP What is OOP PHP Classes/Objects PHP Constructor PHP Destructor PHP Access Modifiers PHP Inheritance PHP Constants PHP Abstract Classes PHP Interfaces PHP Traits PHP Static Methods PHP Static Properties PHP Namespaces PHP Iterables

MySQL Database

MySQL Database MySQL Connect MySQL Create DB MySQL Create Table MySQL Insert Data MySQL Get Last ID MySQL Insert Multiple MySQL Prepared MySQL Select Data MySQL Where MySQL Order By MySQL Delete Data MySQL Update Data MySQL Limit Data

PHP XML

PHP XML Parsers PHP SimpleXML Parser PHP SimpleXML - Get PHP XML Expat PHP XML DOM

PHP - AJAX

AJAX Intro AJAX PHP AJAX Database AJAX XML AJAX Live Search AJAX Poll

PHP Examples

PHP Examples PHP Compiler

PHP Reference

PHP Overview PHP Array PHP Calendar PHP Date PHP Directory PHP Error PHP Exception PHP Filesystem PHP Filter PHP FTP PHP JSON PHP Keywords PHP Libxml PHP Mail PHP Math PHP Misc PHP MySQLi PHP Network PHP Output Control PHP RegEx PHP SimpleXML PHP Stream PHP String PHP Variable Handling PHP XML Parser PHP Zip PHP Timezones

PHP array_uintersect_uassoc() Function

❮ PHP Array Reference

Example

Compare the keys and values of two arrays (using two user-defined functions for comparison) and return the matches:

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

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

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

$result=array_uintersect_uassoc($a1,$a2,"myfunction_key","myfunction_value");
print_r($result);
?>
Try it Yourself »

Definition and Usage

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

Note: This function uses two user-defined functions for comparison; the key is used in the first function and the value is used in the second!

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_uassoc(array1, array2, array3, ..., myfunc_key, myfunc_value)

Parameter Values

Parameter Description
array1 Required. The array to compare from
array2 Required. An array to compare against
array3,... Optional. More arrays to compare against
myfunc_key Required. The name of the user-defined function that compares the array keys.
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
myfunc_value Required. The name of the user-defined function that compares the array values.
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