Handling POST ARRAY in PHP and array_filter

Question

Here is my POST Array PHP

    Array
    (

    [book_count] => 2

    [book_code_1] => 230
    [book_name_1] => 20

    [book_code_2] => 210
    [book_name_2] => 40

    [book_code_3] => 
    [book_name_3] => 60

    [book_code_4] => 
    [book_name_4] => 80

    [book_code_5] => 
    [book_name_5] => 90

    )

In the above array, I get the book_count. i.e 2 What I want to do is. There will be five array and i need to get the values of array with respect to that of book_count.

In other words - in the above case, the book count is 2, and I need to get

    [book_code_1] => 230
    [book_name_1] => 20

    [book_code_2] => 210
    [book_name_2] => 40

I need to eliminate the other array(in this case 3 to 5) values irrespective of the values. How can I achieve that?

I have tried

<?php $new_array = array_filter($_POST) ?>

but this is eliminating only the null values.

You can do that simple iteration. See my answer and demo here — Hüseyin BABAL
– Hüseyin BABAL, Commented Jun 11, 2014 at 6:39

Hüseyin BABAL · Accepted Answer · 2014-06-11 06:38:32Z

1

Demo

You can do that with simple iteration like below;

$arr = array(

    "book_count" => 2,

    "book_code_1" => 230,
    "book_name_1" => 20,

    "book_code_2" => 210,
    "book_name_2" => 40,

    "book_code_3" => "",
    "book_name_3" => 60,

    "book_code_4" => "",
    "book_name_4" => 80,

    "book_code_5" => "",
    "book_name_5" => 90

    );

$result = array();
for ($i = 1; $i <= $arr["book_count"]; $i++) {
    $result["book_code_" . $i] = $arr["book_code_" . $i];
    $result["book_name_" . $i] = $arr["book_name_" . $i];
}

var_dump($result);

answered Jun 11, 2014 at 6:38

Hüseyin BABAL

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