php-general Digest 14 Jun 2012 11:55:30 -0000 Issue 7853
Topics (messages 318231 through 318231):
global array
318231 by: Jeff Burcher
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--- Begin Message ---
Hi,
I am running PHP 5.4 on IIs 6 on a Windows SBS 2003 server. Here is a
streamlined version of the code I am dealing with. I tried to trim as much
as possible to only show code that deals with my issue. The main issue I
think I am having is the global array statement within the function is not
working. From all of the articles I have read, I seem to be doing it
correctly, yet it does not recognize $InvReq as an array within the
function. The array works just fine outside of the function, though. Here
are the error messages:
Notice: Undefined variable: InvReq (line numbers point to inside the
function)
Warning: array_key_exists() expects parameter 2 to be array, null given
(line numbers point to inside the function)
If anyone could point out where I have incorrect syntax or something else
that would interfere with the global reference for the array within the
function, or tell me I can't do what I am doing using arrays, but assume I
don't have the ability to write to an external work table, which is why I am
trying to use an array in the first place. Thanks.
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<?php
$InvReq = array();
// there is some database action here and other programming, but the core
issue is writing to the array, so assume I have all of the necessary data
// data loop to gather inventory requests ---
$linetotal = ???;
$hldpartID = ?????; //these variables are provided
by looping, so this check/write/update code snippet happens many times to
update/write to the array
if (array_key_exists($hldpartID, $InvReq)) {
$InvReq[$hldpartID] += $linetotal;
//if this line will create the array entry if it does not exist, then I
don't need the key_exists check, anyone??
} else {
$InvReq[$hldpartID] = $linetotal;
}
Part_BOM($hldpartID, $linetotal, 1); //function is
called the first time to set up the BOM
// end loop ---
// after gathering all of the inventory requests, check for inventory on
hand
reset ($InvReq);
while (list($PartID,) = each($InvReq)) {
// data loop to get inventory on hand ---
$OnHandQty = ???; //these variables
are provided by looping, so this check/write/update code snippet happens
many times to update/add to the array
if (array_key_exists($PartID, $InvReq)) {
$InvReq[$PartID] -=
$OnHandQty;
} else {
$InvReq[$PartID] =
$OnHandQty;
}
Part_BOM($PartID, $OnHandQty, 2);
//function is called the second time to trim up BOM
// end loop ---
}
// print list
$display_block = "<h2>Part Forecast</h2><table><tr><th>Part
Number</th><th>Amount Needed</th></tr>";
reset ($InvReq);
while (list($PartID,$need) = each($InvReq)) {
$needout = number_format($need);
$display_block .=
"<tr><td>$PartID</td><td>$needout</td></tr>";
}
$display_block .= "</table>";
//---this function adds or subtracts inventory to/from the BOM materials for
the part passed.
//---it also can add parts that make parts with their inventory total for a
multiple level BOM
function Part_BOM($PartID, $need, $phase) {
global $Invreq;
$BOMreq = $need * $BOMQty; //$BOMQty &
$BOMPartID are pulled from a database keyed by $PartID
if ($phase == 1) {
if (array_key_exists($BOMPartID, $InvReq)) {
$InvReq[$BOMPartID] +=
$BOMreq; //first time through adds to array item totals
} else {
$InvReq[$BOMPartID] =
$BOMreq;
}
} else {
if (array_key_exists($BOMPartID, $InvReq)) {
$InvReq[$BOMPartID] -=
$BOMreq; //second time through subtracts from array item totals
}
}
if (--check for parts within other parts for multiple level
BOM--) {
Part_BOM($BOMPartID, $BOMreq, $phase);
//this calls itself and can refer/loop back to itself several times
}
}
?>
<html>
<head>
</head>
<body>
<center>
<?php echo $display_block ?>
</center>
</body>
</html>
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Thanks for your input,
Jeff Burcher - IT Dept
Allred Metal Stamping
PO Box 2566
High Point, NC 27261
(336)886-5221 x229
j...@allredmetal.com
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