PHP array_uintersect() Function
Definition
The array_uintersect() function uses a user-defined function to compare the values of two or more arrays, and returns the matches.
Syntax
PHP array_uintersect() Function has the following syntax.
array_uintersect(array1,array2,array3...,myfunction)Parameter
| Parameter | Is Required | Description |
|---|---|---|
| array1 | Required. | Array to compare from |
| array2 | Required. | Array to compare against |
| array3,... | Optional. | More arrays to compare against |
| myfunction | Required. | Comparison function name. |
myfunction must return an integer <, =, or > than 0 if the first argument is <, =, or > than the second argument.
Example 1
uses a user-defined function to compare the values of two arrays, and returns the matches
<?php// w w w. j a v a2s. c o m
function myfunction($a,$b){
if ($a===$b){
return 0;
}
return ($a>$b)?1:-1;
}
$a1=array("a"=>"A","b"=>"HTML","c"=>"java2s.com");
$a2=array("a"=>"Apple","b"=>"HTML","e"=>"PHP");
$result=array_uintersect($a1,$a2,"myfunction");
print_r($result);
?>
The code above generates the following result.
Example 2
uses a user-defined function to compare the values of three arrays, and returns the matches
<?php/*from w w w . j a v a2s . c om*/
function myfunction($a,$b){
if ($a===$b){
return 0;
}
return ($a>$b)?1:-1;
}
$a1=array("a"=>"A","b"=>"HTML","c"=>"java2s.com");
$a2=array("a"=>"Apple","b"=>"CSS","e"=>"PHP");
$a3=array("a"=>"At","b"=>"CSS","X","Y");
$result=array_uintersect($a1,$a2,$a3,"myfunction");
print_r($result);
?>
The code above generates the following result.
