Dear List -
I seem to be getting dual writes causing a dual insert into the database, and I cannot figure out why.
Database
mysql> describe Inventory;
+-------------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------+-------------+------+-----+---------+-------+
| UPC | char(12) | NO | PRI | | |
| quant | int(5) | NO | | NULL | |
| manuf | varchar(20) | YES | | NULL | |
| item | varchar(50) | YES | | NULL | |
| orderpt | tinyint(4) | NO | | NULL | |
| ordrpt_flag | tinyint(3) | YES | | NULL | |
| stock | int(3) | YES | | NULL | |
| price | float | YES | | NULL | |
| tax_flag | tinyint(3) | YES | | NULL | |
+-------------+-------------+------+-----+---------+-------+
9 rows in set (0.37 sec)
mysql> describe Purchases;
+-------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------+-------------+------+-----+---------+----------------+
| indx | smallint(6) | NO | PRI | NULL | auto_increment |
| manf | varchar(20) | YES | | NULL | |
| itm | varchar(50) | YES | | NULL | |
| prc | float | YES | | NULL | |
+-------+-------------+------+-----+---------+----------------+
4 rows in set (0.00 sec)
PHP code - snipped
error_reporting(E_ALL | E_NOTICE);
ini_set('display_errors','1');
<html>
<?php
$fh1 = fopen("/var/www/orders.txt", "a+");
$fh2 = fopen("/var/www/receipt.txt", "a+");
$fh3 = fopen("/var/www/purchase.txt", "a+");
$sql2 = "update Inventory set quant = quant - 1 where UPC = $upc ";
$result2 = mysqli_query($cxn, $sql2);
$row2 = mysqli_fetch_row($result2);
$sql3 = "select quant, orderpt, ordrpt_flag, manuf, item, stock,price,tax_flag from Inventory
where UPC = $upc";
$result3 = mysqli_query($cxn, $sql3);
?>
<div align="center">
<table border="4" cellpadding="5" cellspacing="55" rules="all" frame="box">
<tr class='heading'>
<th>Manufacturer</th>
<th>Item</th>
<th>Price</th>
</tr>
<?php
$row3 = mysqli_fetch_row($result3);
echo '<br />';
$Quant = $row3[0];
$Orderpt = $row3[1];
$Ordrpt_flag = $row3[2];
$Manuf = $row3[3];
$Item = $row3[4];
$Stock = $row3[5];
$Price = $row3[6];
$Tax = $row3[7];
$numbyt=fprintf($fh2, "%s\t %.2f\t\n %s\t %s\n",$row3[3] , $row3[6], $row3[4], $row3[7]);
$numbyt=fprintf($fh3, "%s,%s,%s, %.2f\n",NULL,$row3[3], $row3[4], $row3[6]);
if($row3[0] < $row3[1] )
echo "<center><b><span style='color: red; font-size:14pt';> Order more $row3[3] $row3[4] Now</b><br
/> </span></center>";
$sql4 = "update Inventory set ordrpt_flag = 1 where UPC = $upc";
$result4 = mysqli_query($cxn, $sql4);
$numbyt=fprintf($fh1, "%d %d %d %s %s %d\n", $Quant, $Orderpt, $Ordrpt_flag, $Manuf, $Item, $Stock);
?>
<tr>
<td> <?php echo $row3[3]; ?> </td>
<td> <?php echo $row3[4]; ?> </td>
<td> <?php echo $row3[6]; ?> </td>
</tr>
</table>
<?php
$sql5 = "load data infile '/var/www/purchase.txt' into table "
. "Purchases FIELDS TERMINATED BY ',' lines terminated by '\n' "; //There are dual writes to the //table
$result5 = mysqli_query($cxn, $sql5);
$sql26 = "SELECT SQL_CALC_FOUND_ROWS itm FROM Purchases ";
$result26 = mysqli_query($cxn, $sql26);
$sql27 = "SELECT FOUND_ROWS()";
$result27 = mysqli_query($cxn, $sql27);
$row27 = mysqli_fetch_row($result27);
$sql25 = "select * from Purchases";
$result25 = mysqli_query($cxn, $sql25);
?>
<div align="center">
<table border="4" cellpadding="5" cellspacing="55" rules="all" frame="box">
<tr class='heading'>
<th>Index</th>
<th>Manufacturer</th>
<th>Item</th>
<th>Price</th>
</tr>
<?php
for($i = 0; $i <$row27[0]; $i++)
{
$row25 = mysqli_fetch_row($result25)
?>
<tr>
<td> <?php echo $row25[0]; ?> </td>
<td> <?php echo $row25[1]; ?> </td>
<td> <?php echo $row25[2]; ?> </td>
<td> <?php echo $row25[3]; ?> </td>
</tr>
<?php
}
?>
</table>
TIA
Ethan
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