array fetch in a random way PHP

Question

In my $data array i have some data stored. So when i try to search for something which is in the right direction my function can find within the array.

For example ---

Suppose i am looking for **Samsung Galaxy S** from my array $data, 
it will return the value 1, 2 and 4 from the array

but the problem is i want to find in data in a random way. like - "S Galaxy Samsung"

But the data is stored like - Samsung GT-i9100 Galaxy S II so when i search for "Samsung Galaxy S", it actually find the value. But when i search for 'S Galaxy Samsung', it can not find the value because we are finding in a random way.

But it should be found in the array, because the request data is there .

Anyone knows any solution for this problem !!!!

   function fetchDataAction() {
    $_POST = 'S Galaxy Samsung';
    $search = $this->my_array_search($data, $_POST); // $data is the array
   } 

function my_array_search($array, $string) {
    $pattern = preg_replace('/\s+/', ' .*', preg_quote($string));
    return array_filter($array, function ($value) use($pattern) {
        return preg_match('/' . $pattern . '/', $value) == 1;
    });
}


$data =
Array
(
    [0] => Array
        (
            [name] => Samsung GT-N7100 Galaxy Note II 16GB
        )

    [1] => Array
        (
            [name] => Samsung GT-i9100 Galaxy S II
        )

    [2] => Array
        (
            [name] => Samsung GT-i9300 Galaxy S III 16GB
        )

    [3] => Array
        (
            [name] => Apple iPhone 5 16GB
        )

    [4] => Array
        (
            [name] => Samsung GT-P5110 Galaxy S 4 10.1 16GB
        )

    [5] => Array
        (
            [name] => Samsung UE46ES6715
        )

    [6] => Array
        (
            [name] => Samsung 830 Series MZ-7PC128 128GB
        )

    [7] => Array
        (
            [name] => Samsung GT-N8000 Galaxy Note 10.1 16GB
        )

    [8] => Array
        (
            [name] => Samsung 830 Series MZ-7PC256 256GB
        )

    [9] => Array
        (
            [name] => Samsung UE46ES6715
        )

    [10] => Array
        (
            [name] => Samsung GT-2423 Galaxy Tab 4 10.1 16GB
        )

it seems like full-text search within plain text. but how about creating recursive function that gets words -3 words from left and +3 words from right and does search on this chunk again? — num8er
– num8er, Commented Oct 11, 2015 at 18:17

Steve E. · Accepted Answer · 2015-10-11 17:52:45Z

A text search tool like elasticsearch, lucene or sphinx may be better for larger scale applications.

If you want to use PHP, the below script will do a word by word comparison and return the index of the first row in $data that contains all the words. Duplicate words are only counted once. If no match is found then it returns -1.

function my_array_search($dataArray, $searchWords) {

    $searchWords=array_flip(explode(' ', $searchWords));
    $targetScore = count($searchWords);

    foreach($dataArray as $index=>$data) {

        $words=array_unique(explode(' ', $data['name']));
        $score = 0;

        foreach($words as $word) {
            if(isset($searchWords[$word])) ++$score;
        }

        if($score >= $targetScore) {
            return $index;
       }
    }
    return -1;
}

An example usage would be

$matchId = my_array_search($data, 'S Galaxy Samsung'); 

Returns $matchId=1; // this is the first row in the sample data to contain all those words.

It's not the best solution because it may not scale or handle edge case such as misspellings. However you can probably adapt it to work for straightforward uses.

Collectives™ on Stack Overflow

array fetch in a random way PHP

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related