How to filter data output for a period of time in Php mysql?

Question

PHP

Tell me how to make data output from ... to ... time using php mysql, you need to display it on the same page, I don’t understand programming well, explain it on your fingers or with an example. Thanks a lot in advance!! Entries output like this
<?php
//Create a function to select a CERTAIN meta by ID and key name
function get_metaset_post($id, $meta_key){
//$id = Post
ID //$meta_key= Key
//Now we take it from the database data for these parameters
$query_meta = "SELECT * FROM wp_postmeta WHERE post_id = $id AND meta_key = '".$meta_key."'";
$res_meta = mysql_query($query_meta);
$return=mysql_fetch_array($res_meta);
return $return['meta_value']; // return field value
}
$query = "SELECT * FROM wp_posts WHERE post_type = 'zakaz' and post_status = 'publish'";
$res = mysql_query($query);
$togo_1=0;
while($row = mysql_fetch_array($res))
{
?>
<?php
$get_price=get_metaset_post($row['ID'], 'summa_p_1'); // use our get_metaset_post function and substitute the value
$get_price2=get_metaset_post($row['ID'], 'summa_p_2');
$prib=$get_price-$get_price2;
$itogo_1+=$prib;
$itogo_3+=$get_price;
?>

Answer 1

Everything is here