CODEWITHSUNDEEP
phparrays
h_h
h_h

Reputation: 1231

Array values comparison regardless of their position and get the count of matched values in php

I want to compare two arrays and want to get the number of values matched in PHP. e.g

$a1 = array(one, two, three);
$a2 = array(two, one, three);

If i compare these arrays i should get 0 difference as result. Can anybody help

Thanks in advance.

Upvotes: 0

Views: 422

Answers (4)

Alaa Gamal
Alaa Gamal

Reputation: 1125

i made an simple function for you

This function will give you the repeated and unrepeated data

i used contries as example

$contries1=array('egypt','america','england');
$contires2=array('egypt','england','china');
function countryRepeated($contries1,$contires2,$status='1'){
    foreach($contries1 as $country){
        if(in_array($country,$contires2))
            $repeated[]=$country;
        else
            $unrepeated[]=$country;
    }
        return ($status=='1')?$repeated:$unrepeated;
}

To get the repeated contries use

print_r(countryRepeated($contries1,$contires2));

Results:

Array ( [0] => egypt [1] => england )

Or if you would like to get the unreapeated contries

You can use:

print_r(countryRepeated($contries1,$contires2,'2'));

Results:

Array ( [0] => america )

Upvotes: 0

Suriyamoorthy Baskaran
Suriyamoorthy Baskaran

Reputation: 635

I hope this helps 

$diff = count(array_diff($a1, $a2));
$matches = count($a1) - $diff;

Refer: PHP array comparison

Upvotes: 1

Ian Wood
Ian Wood

Reputation: 6573

$a1 = array( 1, 2, 3, 4 );
$a2 = array( 2 , 1, 3, 8 );
$matched = array_intersect( $a1, $a2 );
var_dump( $matched );

this should output:

Array
(
    [0] => 1
    [1] => 2
    [2] => 3
)

array_intersect will give you all the elements or the first array that exist in the second - using the keys of the first array

Upvotes: 1

Aaron W.
Aaron W.

Reputation: 9299

$arr1 = array('one', 'two', 'three');
$arr2 = array('two', 'one', 'three');
echo "number of differences : " . count(array_diff($arr1, $arr2));

Upvotes: 1

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