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Passing data in $_Session vars
Posted on 2013-11-12
I have a page (BuildingChk.php) that is used by several other pages. Depending on the page that it came from, it passes data in $_SESSION['Data'].
The page I'm having trouble with needs to add 2 variables to session variable. I'm building the session variable like so:
$_SESSION['Data'] = $ROW2['SEQ'].$ROW2['NOR'].
This does work.
My problem is the length of "NOR" and "SOU". They could be any where from 1 to 4 chars.
Is there a way to set them to 4 chars before building the string?
Also, the following code comes from the page that get's the results.
I've modified the code so that it is only looking for 2 chars in north and south (quick fix).
echo $_SESSION['Data']."<br>";
$strt = substr($_SESSION['Data'],0
$work = $strt."%";
$north = substr($_SESSION['Data'],1
$south = substr($_SESSION['Data'],1
echo $strt."<br>";
echo $work."<br>";
echo $north."<br>";
echo $south."<br>";
The results that I'm getting from the "echo" statements are as follows:
NY10350005755251
NY1035000
NY1035000%
5251
51
Everything is correct except for the $north. Why is it returning 4 chars instead of 2?
Thanks
Glenn
The page I'm having trouble with needs to add 2 variables to session variable. I'm building the session variable like so:
$_SESSION['Data'] = $ROW2['SEQ'].$ROW2['NOR'].
This does work.
My problem is the length of "NOR" and "SOU". They could be any where from 1 to 4 chars.
Is there a way to set them to 4 chars before building the string?
Also, the following code comes from the page that get's the results.
I've modified the code so that it is only looking for 2 chars in north and south (quick fix).
echo $_SESSION['Data']."<br>";
$strt = substr($_SESSION['Data'],0
$work = $strt."%";
$north = substr($_SESSION['Data'],1
$south = substr($_SESSION['Data'],1
echo $strt."<br>";
echo $work."<br>";
echo $north."<br>";
echo $south."<br>";
The results that I'm getting from the "echo" statements are as follows:
NY10350005755251
NY1035000
NY1035000%
5251
51
Everything is correct except for the $north. Why is it returning 4 chars instead of 2?
Thanks
Glenn
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Because the second number is supposed to be the length, not the ending position.
$north = substr($_SESSION['Data'],12,2);
$south = substr($_SESSION['Data'],14,2);
Is there any reason you can't simply make $_SESSION['Data'] an array?
$_SESSION['Data'] = array(
'north' => '...',
'south' => '...',
'other' => '...',
'stuff' => '...
);
The PHP session is an array. It can have as many data elements as you want. Clogging them up together is a sure way to become confused!
Here is something like what I would recommend. (I would also avoid the uppercase variable names.)
Here is something like what I would recommend. (I would also avoid the uppercase variable names.)
// NOT THIS: $_SESSION['Data'] = $ROW2['SEQ'].$ROW2['NOR'].$ROW2['SOU'];
$_SESSION['seq'] = $ROW2['SEQ'];
$_SESSION['nor'] = $ROW2['NOR'];
$_SESSION['sou'] = $ROW2['SOU'];
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