How to pass array from a Form to another applicaton?

Applications Forms
,
#1

Hi,

I have a form (blank) with a listbox and a submit button.

code:
[INDENT]$gnNoAry = array();
sc_set_global($gnNoAry);

echo “<form id=‘form1’ name=‘form1’ method=‘post’ action=’…/showresult.php’>”;
echo " <select name=‘gnNoAry[]’ size=‘30’ multiple=‘multiple’ tabindex=‘1’ method=‘post’>";
while ($row = mysql_fetch_array($result)) {
$thename = $row[‘no’]." “.$row[‘cname’];
$theno = $row[‘no’];
echo " <option value=$gnNoAry>$thename</option>”;
}
echo " </select>";[/INDENT]

When the user select some item in the list and press “submit”, I want to pass the selected items in an array gnNoAry to another application showresult.php

showresult.php
[INDENT]<?php
echo ‘gnNoAry:’;
print_r($_POST[‘gnNoAry’]);
?>[/INDENT]

However, I got the follow error message:
gnNoAry: Notice: Undefined variable: _post in C:…\showresult.php

Can some help me?

Best regards,
Lai

#2

Hi Lai,
Can you see the variable in the second app by doing following?
echo [gnNoAry];

Another trick I use when testing variables and such is to put the global in one of the title fields in the header fyi - avoids having to echo things…

make sure in the first application, under the Application setting, you check that [gnNoAry] is going OUT as session. Then in second app make sure the same setting there is IN as session.

I hope tat helps. I am have not passed arrays between apps, but seems like it should be the same as other variables.

Note that I , as a personal rule, always set my main global variables up , even if NULL, in the login app. That way I know they exists when using them later. You can then just do things like [glo_my_var1] = “1234”; or read it by using [glo_my_var1].

I always set my naming to have [glo_something1], [glo_something2], etc. Just to give them clean naming as universal globals. For passing between just 2 apps, I usually do something like [v_my_var1], and use that name on both sides. Note that when you make links between apps, something very useful to learn and do, I use that naming as well.

Anyway, hope that works for you. Let us all know if arrays can be passed ok :slight_smile:
peace,
Jamie

#3

Hi Jamie,

I followed your suggestions and it worked. Excellent! :slight_smile:

Fixed codes:[INDENT]echo " <select name=‘gnNoAry[]’ size=‘30’ multiple=‘multiple’ tabindex=‘1’ method=‘post’>";
while ($row = mysql_fetch_array($result)) {
$thename = $row[‘no’]." “.$row[‘cname’];
$theno = $row[‘no’];
echo " <option value=$thename>$thename</option>”;
}
echo " </select>";
[/INDENT]

Best of all, your coding advices on global and local variables are valuable to me.

Thanks a lot.

Best regards, Lai :o

#4

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