So I have this problem, which I don't see how it's happening. Basically I have 2 arrays one of which has a list of apparatus and the other just has one apparatus that the user can operate. I want to have a dropdown list of all the apparatus avliable, but the default value that is selected is the one that they can operate (They can only operate one at a time) Here is the code, and I have an if statement to check if the user can operate it and selected = "selected" but that doesn't seem to be working (In firefox)... Any help would be great.
Thanks!
<?php
foreach ($apparatuslist as $apparatus):?>
<option value="<?php echo $apparatus['apparatus'];?>" <?php if ($driveron['apparatus'] == $apparatus['apparatus']){echo "SELECTED";} ?> ><?php echo substr($apparatus['apparatus'], 5); ?></option>
<?php endforeach;?>
You have it right in your question, but not in your code
<?php
foreach ($apparatuslist as $apparatus):?>
<option value="<?php echo $apparatus['apparatus'];?>" <?php if ($driveron['apparatus'] == $apparatus['apparatus']){echo "selected=\"selected\"";} ?> ><?php echo substr($apparatus['apparatus'], 5); ?></option>
<?php endforeach;?>
Should do the trick..
The code is correct. It's optional whether you write select="selected" or jus "selected" that doesn't effect firefox.The code is correct but not working means the problem in browser i guess. Either it is cache problem as newer version of firefox has cache problem or there may be other kind of problem in firefox. Please check in other computer's firefox.
correct syntax is: selected="selected" in OPTION tag
Related
I am trying to achieve the following...
Each 'element' should have the option to choose one 'sibling' from a select dropdown, the siblings are chosen from all of the other elements, the sibling cannot be itself, but a sibling doesn't have to be assigned. If one is assigned it should be selected by default in the select list.
<?php echo $sibling; ?>
<select name="sibling">
<option value="none">none</option>
<?php
while($row = $result->fetch_array()) {
if($row['element']!=$element){
echo '<option value="'.$row['element'].'" ';
if($row['sibling']==$sibling){
echo 'selected="selected"';
}
echo '>'.$row['element'].'</option>';
}
}
?>
</select>
I have almost achieved what I want but for some reason the code doesn't add selected="selected" to the right option.
I'd appreciate any guidance anyone could give in where I may be going wrong? I'm fairly new to PHP so I may be going about this in the wrong way.
$element and $sibling are equal to $row['element'] and $row['sibling'] for the corresponding $id which is an index that is passed to the page on a query string.
UPDATE: FOUND ANSWER
So with a little investigation this was glaringly obvious.
The line containing...
if($row['sibling']==$sibling)
should have been...
if($row['element']==$sibling){
Thanks to #RyanS for suggesting the var dump.
I seem to be having a problem and after hours of searching and messing with different ideas I can't seem to come up with this seems to be simple PHP Session problem with my Select Options menu.
All I want to do is simple have the selected Hotel Name from the dropdown hold till it is changed, and this goes for every page. So I thought, of yea lets just use Sessions. Doesn't seem to work very well as it keeps refreshing the data. Here is my code, and maybe one of you guys can come up with a solution. I would really appreciate it!
We are using a json file to populate the menu that we get by using a CURL to call the data and then decode the json.
Here is the dropdown code:
<select id="hotelSelected" name="hotelSelected">
<?php
sort($hotelName);
foreach($hotelName as $value):
echo '<option value="'.$value.'"'.ucfirst($value).'</option>';
endforeach; ?>
</select>
And then I tried to create a session by doing this:
$_SESSION['hotelName'] = $hotelName;
And now I need this session to carry on every page. And possibly echo on certain pages by possibly using this:
echo $_SESSION['hotelName'];
Any help is appreciated or redirect me to a forum that can fix my problem. Thank you guys!
you should use session_start(); at the top of every PHP file which uses sessions.
Also if you have a form contains SELECT tag , after submitting the form you should use $_POST['hotelSelected'] for grabbing tha value of option selected by user.
EDIT 1:
<select id="hotelSelected" name="hotelSelected">
<?php
sort($hotelName);
foreach($hotelName as $key=>$value):
echo '<option value=($_SESSION['hotelname'][$key]):"'.$_SESSION['hotelname'][$key].'"'.ucfirst($_SESSION['hotelname'][$key]).'?"'.$value.'"'.ucfirst($value).'</option>';
endforeach; ?>
</select>
<?php
$_SESSION['hotelname']=$hotelname;
html
<select id="hotelSelected" name="hotelSelected" onchange="run(this)">
<?php
sort($hotelName);
foreach($hotelName as $value):
echo '<option value="'.$value.'"'.ucfirst($value).'</option>';
endforeach;
?>
</select>
javascript
function run(sel) {
var i = sel.selectedIndex;
if (i != -1) {
$.post('updatesession.php', {id:i}, function(){
alert('Session Updated!');
});
}
}
updatesession.php
if(isset($_POST['id'])){
session_start();
$_SESSION['hotelName']=id;
}
I basically need to create a value by default for a drop down menu on a PHP page that will use the value previously selected and stored in the database.
For example, lets just say I have the value '3' stored in a database column. I want to use this number as the default value for a drop down menu where the <option value = "3">Good</option>. Is there a simple solution to this problem?
Or do i literally need to loop through the values until it makes a value?
Thanks.
I usually do this
<?php
$sel = 'selected="selected"';
$current_whatever = 5;
?>
<option name="whatever">
<?php foreach($list as $listItem): ?>
<option value="<?=$listItem->id?>" <?=($listItem->id == $current_whatever)?$sel:''?>><?=$listItem->name?></option>
<?php endforeach; ?>
</option>
I'm using an inline if statement to check each one :) Looks reasonably tidy.
Assuming you're using database objects, you get the idea if you're not though :)
<?php foreach($options as $key=>$option){?>
<option value='<?=$key?>' <? echo $key==$selected?"SELECTED":"";?> ><?=$option?></option>
<? }?>
here I have stupid question, hope you can help me.
I create a menu using Select element and option like this:
<option selected="selected">Select type...</option>
<option value="1">Doctor</option>
<option value="2">Patient</option>
and every time I need to pick one value from this menu and use the submit button next to it to transfer data.
But every time the page refreshed, this menu will reveal: Select type...
I want it to reveal the value I chose last time, but don't know how.
Many thanks in advance!!
You'll want to move that selected="selected" onto the selected option.
Doing so in PHP isn't too rough. Just check the $_POST or $_GET (however you sent the form) value for your select box, such as $_POST["selectBox"] for each value down the list. When you find a match, echo out the selected="selected" string there. If the value was empty, output it on your default value.
The easiest way to achieve this is to populate the <select> options in an array, then loop through it to display the <option> list and mark them as selected is the $_POST variable matches the correct value:
<?php $myselect = array(1=>'Doctor', 2=>'Patient'); ?>
<select name="myselect">
<option>Select type...</option>
<?php foreach ($myselect as $value => $label): ?>
<option value="<?php echo $value; ?>"<?php if (isset($_POST['myselect']) && $_POST['myselect'] == $value) echo ' selected'; ?>>
<?php echo $label; ?>
</option>
<?php endforeach; ?>
</select>
<select name="myselect">
<?php
$myselect = array('Select type...','Doctor','Patient');
for($i=0; $i<=2; $i++){
echo "<option value=\"{myselect[$i]}\"";
if (isset($_POST['myselect']) && $_POST['myselect'] == $myselect[$i]){
echo 'selected=\"selected\"';
}
echo ">{$myselect[$i]}</option>";
}
?>
</select>
You have to use the server-side language of you choice to store the selected value in a database, xml or text file.
Edit : I think I may have misunderstood your question.
There are a few ways to do this.
On submit you can save that value as a $_SESSION value and use that to set the select on page load.
Using Javascript you can either set a cookie on change or alter the url to add a parameter (url?selecttype=1) and set that on page load using PHP.
There's a good use of cookies in JS on quirksmode: http://www.quirksmode.org/js/cookies.html
You need to change which one is selected to match the request....
function create_select($properties, $opts)
{
$out="<select ";
foreach ($properties as $propname=>$propval) {
$out.=" $propname='$propval'";
}
$out.=">\n";
foreach ($opts as $val=>$caption) {
$out.="<option value='$value'";
if ($_REQUEST[$properties['name']]==$val) $out.=" SELECTED";
$out.=">$caption</option>\n";
}
$out.="</select>";
return $out;
}
print create_select(array('name'=>'direction',
'id'=>'direction',
'class'=>'colourful',
'onChange'=>''),
array('N'=>'North',
'S'=>'South',
'E'=>'East',
'W'=>'West'));
I have a quick question.
Is it possible to do something like this?
The options are generated dynamically based on foreach loop. I want the loop to stop where the $_GET['t'] equals the $k and make it selected.
<option value="http://domain.com/<?php print $k; ?>/" <?php if ($k == $_GET['t']) print 'selected'; ?>><?php print $v; ?></option>
Basically is there a way to make the option selected/highlighted based on the provided $_GET[t'] value on the address bar.. I tried it and i get undefined index: t error.
am i missing something?
Thanks a lot.
You get the undefined error because "t" is not in your $_GET request.
make sure you are calling the right url (i.e.: example.com/script.php?t=test)
Do make sure you are checking for the value (as others suggested) with isset($_GET['t'])
You almost got it - the xhtml is actually selected="selected"
<option value="http://domain.com/<?php print $k; ?>/" <?php if ($k == $_GET['t']) print 'selected="selected"'; ?>><?php print $v; ?></option>
Above what adam noted, are you testing by actually passing a "t=something" on the end? This code should get rid of the error by testing to see if t was set first:
<option value="http://domain.com/<?php print $k; ?>/" <?php if (isset($_GET['t']) && $k == $_GET['t']) print 'selected="selected"'; ?>><?php print $v; ?></option>
You shouldn't use GET's to change form values on a page. You should use POST for that :)
This way, if anyone crawls your page, they won't have 10 times the same page with just the select box changed :)