search array in array and return key

Question

I have two arrays

1.$ids;

Array
(
    [0] => 2427975642
    [1] => 2397521678
)

2.$c

Array
(
    [48] => 2397521678
    [46] => 461
    [45] => 451
)

Question: Search values from $ids in $c and return new array with id. Example return 48

Please rephrase your question. It's really hard to see what you are asking. — Jan Hančič
– Jan Hančič, Commented Aug 7, 2012 at 8:27
Are you trying to combine/merge the two arrays by their values? And the latter keys should overwrite the former ones? — feeela
– feeela, Commented Aug 7, 2012 at 8:35
Merge eliminated because the resulting table is entry identifiers in the database to update — damian
– damian, Commented Aug 7, 2012 at 8:42

Erwin Moller · Accepted Answer · 2012-08-07 08:37:29Z

1

$ids = array(   
    2427975642,
    2397521678
);



$c = array(
    48 => 2397521678,
    46 => 461,
    45 => 451
);

$common = array_keys(array_intersect($c, $ids));

print_r($common);

answered Aug 7, 2012 at 8:37

Erwin Moller

2,40816 silver badges23 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Karl Moodh · Accepted Answer · 2012-08-07 08:34:12Z

1

Check out the function array_intersect: http://php.net/manual/en/function.array-intersect.php

answered Aug 7, 2012 at 8:34

Karl Moodh

2,72128 silver badges43 bronze badges

Comments

Rupesh Patel · Accepted Answer · 2012-08-07 08:41:03Z

1

    $ids= array
    (
        [0] => 2427975642
        [1] => 2397521678
    );

    $c =array
    (
        [48] => 2397521678
        [46] => 461
        [45] => 451
    );

$res = array_intersect($ids,$c);
$keys = array_keys($res);
print_r($keys);

answered Aug 7, 2012 at 8:41

Rupesh Patel

3,0835 gold badges31 silver badges49 bronze badges

Comments

user849137 · Accepted Answer · 2012-08-07 08:39:04Z

0

$ids = array(   
    2427975642,
    2397521678
);



$c = array(
    48 => 2397521678,
    46 => 461,
    45 => 451
);

$finalArray = array();

foreach ( $c as $key=>$val)
{

if ( array_search($val,$ids))
{

$finalArray[]=$key;

}

}

answered Aug 7, 2012 at 8:39

user849137

1 Comment

damian Over a year ago

$results = array(); foreach($ids as $val) foreach($c as $key=>$val2) if($val == $val2) array_push($results, $key); // or to get just the first, // replace the if statement with // // if($val == $val2) { // $result = $key; // break 2; // } print_array($results);

Collectives™ on Stack Overflow

search array in array and return key

4 Answers 4

Comments

Comments

Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

Comments

Comments

Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related