在php中动态获取数据

Question

I have a search form which has four filter textboxes. What I want to do is whenever the user submits the form, only those textboxes that has values will be submitted and searched for. I know how to do it in if else statement, but it's too long to write it in code. Is there any other shorter methods?

Answer 1

Try to use this code. You can implement search condition in the foreach loop.

// HTML field names
$fields = array_flip(array("search1", "search2", "search3", "search4"));

$data = array_filter(array_intersect_key($_POST, $fields));

foreach ($data as $key => $val) {
    // Here you can implement the sql search condtion
    echo "$key => $val" . PHP_EOL;
}