inventarioSustancias/public_html/scripts/amount.php

<?php
/*  Authors         :   Carlos C. Corrada-Bravo
                        David J. Ortiz-Rivera

    Organization    :   Centro de Desarrollo y Consultoria Computacional
    Project         :   OPASO Material Registry   
    File            :   extract.php
    Description     :   Extract and insert data from tsv. */

	/* Import database connection & display errors */
	include_once "config.php";
	error_reporting(E_ALL);
	ini_set("display_errors",1);

	/* Initiate statement */
	$amount = $db->stmt_init();
	if($amount = $db->prepare("SELECT eid,amount,quantity,total FROM Inventory WHERE amount!='n/a' AND quantity!='n/a' AND total!='n/a'")){
		/* execute */
		if($amount->execute()){
			/* fetch result by rows and generate response to script */
			$result = $amount->get_result();
			$response = array();
			while($mult = $result->fetch_assoc()){
				$key = $mult["eid"];
				$a = $mult["amount"];
				$q = $mult["quantity"];
				$t = $mult["total"];
				if(floatval($a)*floatval($q) != floatval($t)){
					echo $key . '<br>';
					//echo floatval($a)*floatval($q) . ' ' . floatval($t) . '<br>';
				}
			}
			
		}
	}
?>