Question

I would like to look up the database table for people whose registered date equals 4-22.

My sql would look something similar like this

function GetUsers($dreg)
{
    $dt=(new DateTime($dreg))->format('Y-m-d');
    $result=$this->query("SELECT * FROM tablex WHERE dreg='$dt'");
    return ($this->getNumRows()>0)?$result:null;
}

However the sql turns out incorrect because I need to get only month and day when the employee registered not the year.

Answer 1

You have to compare just day and month instead of the whole date:

function GetUsers($dreg)
{
    $dt=(new DateTime($dreg))->format('m-d');
    $result=$this->query("SELECT * FROM tablex WHERE DATE_FORMAT(dreg, '%m-%d') = '$dt'");
    return ($this->getNumRows()>0)?$result:null;
}