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phparraysreturn
Minuwan Deshapriya
Minuwan Deshapriya

Reputation: 127

PHP array key exists

I have 2 arrrays, And i need return TRUE or FALSE when 2 arrays matched each other. also un-ordered arrays should return TRUE if results matched, but only should return true if both arrays have same values.

//This should return TRUE
$array_One = array('test1', 'test2', 'test3');
$array_Two = array('test1', 'test2', 'test3');

//This should return TRUE
$array_One = array('test1', 'test2', 'test3');
$array_Two = array('test1', 'test3', 'test2');

//This should return TRUE
$array_One = array('test1', 'test2', 'test3');
$array_Two = array('test1', 'test3', 'test2');

//This should return FALSE
$array_One = array('test1', 'test2', 'test3');
$array_Two = array('test1', 'test2');

I tried few methods, including array_key_exists by using foreach, But it does not returned the expected result. This should return ONLY one TRUE or FALSE when arrays matched.

Upvotes: 1

Views: 335

Answers (5)

MAXIM
MAXIM

Reputation: 1221

this should work for you:

sort($array1);
reset($array1);
sort($array2);
reset($array2);
$res = array_diff($array1, $array2);

if($res)
    echo "they match";

Upvotes: -1

Barry Chapman
Barry Chapman

Reputation: 6780

function arraycomp( $array1, $array2 ) {
   $diff1 = array_values( $array1 );
   $diff2 = array_values( $array2 );

   sort( $diff1 );
   sort( $diff2 );

   return ( $diff1 === $diff2 );

}

Simply pass in your two arrays to that function.

Upvotes: 1

Kao
Kao

Reputation: 2272

If you want to compare the sizes of the arrays, what you can do is use count:

if ( count ( $array1 ) == count ( $array2 )) 
{ 
     MATCH! 
} 
else 
{ 
     NO MATCH! 
}

Upvotes: 1

Dale
Dale

Reputation: 10469

$array_One = array('test1', 'test2', 'test3');
$array_Two = array('test1', 'test3', 'test2');

if (array_diff($array_One, $array_Two))
{
    // there is a difference
    echo 'FALSE';
}
else
{
    // the arrays match
    echo 'TRUE';
}

Upvotes: 1

Haim Evgi
Haim Evgi

Reputation: 125604

http://php.net/manual/en/function.array-diff.php

If you just need to know if two arrays' values are exactly the same (regardless of keys and order), then instead of using array_diff, this is a simple method:

<?php

function identical_values( $arrayA , $arrayB ) {

    sort( $arrayA );
    sort( $arrayB );

    return $arrayA == $arrayB;
}

// Examples:

$array1 = array( "red" , "green" , "blue" );
$array2 = array( "green" , "red" , "blue" );
$array3 = array( "red" , "green" , "blue" , "yellow" );
$array4 = array( "red" , "yellow" , "blue" );
$array5 = array( "x" => "red" , "y" =>  "green" , "z" => "blue" );

identical_values( $array1 , $array2 );  // true
identical_values( $array1 , $array3 );  // false
identical_values( $array1 , $array4 );  // false
identical_values( $array1 , $array5 );  // true

?>

Upvotes: 3

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