Can't seem to capture a variable in a chained select
Posted on
16th Feb 2014 07:03 pm by
admin
I'm *this* close to having a chained select running but for some reason it doesn't seem to be picking up a variable.
Code: <?php
Did you know?Explore Trending and Topic pages for more stories like this.
require ('inc/connection.php');
//seeming that we are just submitting and refreshing to the one page we need to check if the post variable is set, and if so a couple of other variables are set
if(!isset($_POST['state'])) {
$next_dropdown = 0;
}
else {
//When set this variable reveals the next drop down menu
$next_dropdown = 1;
//this variable keeps the previous selection selected
$selected = $_POST['state'];
}
?>
<form name="form" method="post" action="">
<select name="state" style="font-size:20px;">
<option value="NULL">State</option>
<?php
$query = "SELECT id, name FROM state ORDER BY name ASC";
$result = mysql_query($query);
while($row = mysql_fetch_array($result))
{?>
<option value="<?php echo $row[0]; ?>" onClick="document.form.submit()" <?php if(isset($selected) && $row[0] == $selected) {echo "selected='selected'";} ?>><?php echo $row[1]; ?></option>n";
<?php }
echo '</form>n';
//this is where the other form will appear if the previous form is submitted
if($next_dropdown == 1) {?>
<form name="form2" action="" method="post">
<select name="city">
<option value="NULL">City</option>
<?php
$query2 = "SELECT * FROM city WHERE state_id = " . $row[0];
$result2 = mysql_query($query2);
while($row2 = mysql_fetch_array($result2))
{ ?>
<option value="<?php echo $row2[0]; ?>" onClick="document.form2.submit()"><?php echo $row2[1]; ?></option>
<?php }?>
</select>
</form>
<?php }
?>
The state drop down works fine. Once a state is selected, it will display the city drop down. However, the city drop down never populates. It's as though it forgets what $row[0] is. Any thoughts?
No comments posted yet
Your Answer:
Login to answer
83
35
Other forums
generating all possible random letters
hi'
how can i randomize the letters a,b,c,d,e all possible ways, and i want to print the res
Php mysql - select?
Hi i have this code:
Code: $iteminfo = mysql_query("SELECT desc FROM wc_items WHERE itemid =
SAP Treasury - Commodities
We are running SAP ECC 6.0 with Treasury Activated.
EA-FIN is also activated (SFW5).
weird problem
last time, i did post a topic concerning why my page sometime will load as blank page when using IE.
Protecting forms
Alright, I want to protect some forms of mine from SQL Injections, because I had someone earlier spa
bind error during socket programming
i am kinda new to socket programming. wrote the below code for a server. but getting the bind error
Forms Authentication and Refresh at Login page
Hello,
When I try to press the Login button in my webapplication at my login.aspx page nothing h
Accept only alpha characters
I've got this bit of code ready for accepting a phrase:
Code: if (!eregi ("", $_POS
Session login issue
I'm wondering how to fix a problem I'm having with a session-based login system
Say I go to h
More pug propaganda.
http://www.youtube.com/watch?v=8Kkrmubsgf8
The commercial is definitely worth watching pug aw