The following form works exactly as expected, and provides a dropdown list to select an option from:
<select id="f-heroes" class="c-form-select__dropdown">
<option value="" disabled selected>Heroes</option>
<option value="captainAmerica">Captain America</option>
<option value="ironMan">Iron Man</option>
<option value="blackWidow">Black Widow</option>
<option value="thor">Thor</option>
</select>
What I am trying to do is this:
<select id="f-heroes" class="c-form-select__dropdown">
<option value=""><?echo getElement('hero');?></option>
</select>
This gets the 'hero' list but displays it below and out of the option window, and leaves me no option to select a value.
I may be missing something really simple here, but can't seem to get this to work, any help much appreciated.
It looks like your mixing PHP and JavaScript here. From my understanding of your question, you're wanting to create a loop that keeps creating 's for each of your superheroes.
If that's correct, you could use PHP and do something like the below:
<select id="f-heroes" class="c-form-select__dropdown">
<option value="" disabled selected>Heroes</option>
<?php
$superHeroes = array('Captain America','Iron Man','Black Widow','Thor');
$i = 0;
while ($i < count($superHeroes)) {
$name = $superHeroes[$i];
echo "<option value='".$name."'>".$name."</option>";
$i++;
}?>
</select>
<form>
<p><b>Room Number:</b></p>
<form action="action_page.php">
<select name="rooms">
<option value="select">Select a Room</option>
<option value="room 1">Room 0001</option>
<option value="room 2">Room 0002</option>
<option value="room 3">Room 0003</option>
<option value="room 4">Room 0004</option>
</select>
</form>
How can I implement that by opening a text file and getting the values "room 0001-0004 and not writing them at the html code?
This question is incredibly generic. But a language like PHP is ideally designed to be a web development language, and it suited to this application. Assuming that the file extension was changed to .phtml and an appropriate server had been set up please see this link (note I don't normally use w3 schools, but I think its appropriate here). It would be possible to modify the now phtml file as so:
<?php
$fileHandle = fopen("filename.csv", "r");
$csvArray = fgetcsv($fileHandle);
?>
/** Normal HTML headers and the like! **/
<p><b>Room Number:</b></p>
<form action="action_page.php">
<select name="rooms">
<option value="select">Select a Room</option>
<option value="room 1">Room 0001</option>
<option value="room 2">Room 0002</option>
<option value="room 3">Room 0003</option>
<option value="room 4">Room 0004</option>
<?php for ($i = 0; $i < count($csvArray); $i++): ?>
<option value="<?=$csvArray[$i];?>" >Room 000<?=$i;?></option>
</select>
</form>
As a javascript alternative could easily be done, but there are many considerations to be made in terms of format and location.
I'm almost positive that you're trying to ask if this can be done using purely HTML. I don't believe thats possible. Perhaps using PHP (as above), javascript and an XHR call (but you'd still need somewhere to put the file) this is possible. But I don't believe in pure HTML this can be done.
I did this, and worked... Just in case anyone ever need it :P
<p><b>Room Number:</b></p>
<form>
<select name="rooms">
<option value="select">Select a Room</option>
<?php $i = 0;
label:
?>
<option value="<?=$csvArray[$i];?>" ><?=$csvArray[$i];?></option>
<?php
if($i<count($csvArray)-1){
$i++;
goto label;
}
?>
</select>
</form>
While I am sure I am doing something stupid, after staring at the code for much too long, I am now stumped. I have created a select box and populate it with posts from a certain post type in Wordpress. This works fine except when viewing the source, the option value is being placed outside of the actual value attribute and all boxes are being marked as selected.
It has to be a simple mistake somewhere but if anyone can spot this, it would be greatly appreciated.
<label for="meta-select-providers" class="package-row-title"><?php _e( 'Provider', 'package_textdomain' )?></label>
<select name="meta-select-providers" id="meta-select-providers">
<?
if( $providers->have_posts() )
{
while( $providers->have_posts() )
{
$providers->the_post();
$provider_name = get_the_title();
$provider_id = the_ID();
?>
<option value="<? echo $provider_id; ?>" <?php if (isset ($package_stored_meta['meta-select-providers'])) selected( $package_stored_meta['meta-select-providers'][0], $provider_id ); ?>>
<?php _e( $provider_name, 'package_textdomain' )?></option>
<?
}
}
?>
</select>
Update
<option value="<? the_ID(); ?>" <?php if (isset ($package_stored_meta['meta-select-providers'])) selected( $package_stored_meta['meta-select-providers'][0], the_ID() ); ?>>
<?php _e( $provider_name, 'package_textdomain' )?></option>
Source:
1647
<option value="" selected>
Post 1</option>
1645
<option value="" selected>
Post 2</option>
1643
<option value="" selected>
Post 3</option>
the_ID() displays (echoes) the value. From the docs:
Displays the numeric ID of the current post. This tag must be within The Loop.
Note: This function displays the ID of the post, to return the ID use get_the_ID().
This code will work as expected:
<label for="meta-select-providers" class="package-row-title"><?php _e( 'Provider', 'package_textdomain' )?></label>
<select name="meta-select-providers" id="meta-select-providers">
<?
if( $providers->have_posts() )
{
while( $providers->have_posts() )
{
$providers->the_post();
$provider_name = get_the_title();
$provider_id = get_the_ID();
?>
<option value="<? echo $provider_id; ?>" <?php if (isset ($package_stored_meta['meta-select-providers'])) selected( $package_stored_meta['meta-select-providers'][0], $provider_id ); ?>>
<?php _e( $provider_name, 'package_textdomain' )?></option>
<?
}
}
?>
</select>
How can I get this to work and look right.
<?php $arr = (array) json_decode($item->options, true); ?>
<label>Please choose a variant</label><br />
<select name="options">
<option>{{ implode(' ', $arr) }}</option>
</select>
But it's showing in one option instead of 3 in this case example.
It is difficult to say without seeing your json, but you need to loop through the array of options:
<select name="options">
<?php foreach($arr as $a):?>
<option>{{{a}}}</option>
<?php endforeach;?>
</select>
I got a select tag with some options in a HTML form:
(the data will be collected and processed using PHP)
Testing:
<select name="Testing">
<option value="1"> One
<option value="2"> Two
<option value="3"> Three
</select>
Is it possible for an option to carry multiple values like when a user selects
"One", then a few other values related to this option will be written to the Database.
How should I design the select Tag so that each of the options can carry one than one value like this:
<select name="Testing">
<option value="1" value="2010"> One
<option value="2" value="2122"> Two
<option value="3" value="0"> Three
</select>
One way to do this, first one an array, 2nd an object:
<select name="">
<option value='{"num_sequence":[0,1,2,3]}'>Option one</option>
<option value='{"foo":"bar","one":"two"}'>Option two</option>
</select>
I achieved it by using the PHP explode function, like this:
HTML Form (in a file I named 'doublevalue.php':
<form name="car_form" method="post" action="doublevalue_action.php">
<select name="car" id="car">
<option value="">Select Car</option>
<option value="BMW|Red">Red BMW</option>
<option value="Mercedes|Black">Black Mercedes</option>
</select>
<input type="submit" name="submit" id="submit" value="submit">
</form>
PHP action (in a file I named doublevalue_action.php)
<?php
$result = $_POST['car'];
$result_explode = explode('|', $result);
echo "Model: ". $result_explode[0]."<br />";
echo "Colour: ". $result_explode[1]."<br />";
?>
As you can see in the first piece of code, we're creating a standard HTML select box, with 2 options. Each option has 1 value, which has a separator (in this instance, '|') to split the values (in this case, model, and colour).
On the action page, I'm exploding the results into an array, then calling each one. As you can see, I've separated, and labelled them so you can see the effect this is causing.
its possible to have multiple values in a select option as shown below.
<select id="ddlEmployee" class="form-control">
<option value="">-- Select --</option>
<option value="1" data-city="Washington" data-doj="20-06-2011">John</option>
<option value="2" data-city="California" data-doj="10-05-2015">Clif</option>
<option value="3" data-city="Delhi" data-doj="01-01-2008">Alexander</option>
</select>
you can get selected value on change event using jquery as shown below.
$("#ddlEmployee").change(function () {
alert($(this).find(':selected').data('city'));
});
You can find more details in this LINK
one option is to put multi value with comma seperated
like
value ="123,1234"
and in the server side separate them
When I need to do this, I make the other values data-values and then use js to assign them to a hidden input
<select id=select>
<option value=1 data-othervalue=2 data-someothervalue=3>
//...
</select>
<input type=hidden name=otherValue id=otherValue />
<input type=hidden name=someOtherValue id=someOtherValue />
<script>
$('#select').change(function () {
var otherValue=$(this).find('option:selected').attr('data-othervalue');
var someOtherValue=$(this).find('option:selected').attr('data-someothervalue');
$('#otherValue').val(otherValue);
$('#someOtherValue').val(someOtherValue);
});
</script>
What about html data attributes?
That's the easiest way.
Reference from w3school
In your case
$('select').on('change', function() {
alert('value a is:' + $("select option:selected").data('valuea') +
'\nvalue b is:' + $("select option:selected").data('valueb')
)
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.0/jquery.min.js"></script>
<select name="Testing">
<option value="1" data-valuea="2010" data-valueb="2011"> One
<option value="2" data-valuea="2122" data-valueb="2123"> Two
<option value="3" data-valuea="0" data-valueb="1"> Three
</select>
In HTML:
<SELECT NAME="Testing" id="Testing">
<OPTION VALUE="1,2010"> One
<OPTION VALUE="2,2122"> Two
<OPTION VALUE="3,0"> Three
</SELECT>
For JS:
var valueOne= $('#Testing').val().split(',')[0];
var valueTwo =$('#Testing').val().split(',')[1];
console.log(valueOne); //output 1
console.log(valueTwo); //output 2010
For PHP:
$selectedValue= explode(',', $value);
$valueOne= $exploded_value[0]; //output 1
$valueTwo= $exploded_value[1]; //output 2010
I did this by using data attributes. Is a lot cleaner than other methods attempting to explode etc.
HTML
<select class="example">
<option value="1" data-value="A">One</option>
<option value="2" data-value="B">Two</option>
<option value="3" data-value="C">Three</option>
<option value="4" data-value="D">Four</option>
</select>
JS
$('select.example').change(function() {
var other_val = $('select.example option[value="' + $(this).val() + '"]').data('value');
console.log(other_val);
});
If you're goal is to write this information to the database, then why do you need to have a primary value and 'related' values in the value attribute? Why not just send the primary value to the database and let the relational nature of the database take care of the rest.
If you need to have multiple values in your OPTIONs, try a delimiter that isn't very common:
<OPTION VALUE="1|2010">One</OPTION>
or add an object literal (JSON format):
<OPTION VALUE="{'primary':'1','secondary':'2010'}">One</OPTION>
It really depends on what you're trying to do.
Put values for each option like
<SELECT NAME="val">
<OPTION value="1:2:3:4"> 1-4
<OPTION value="5:6:7:8"> 5-8
<OPTION value="9:10:11:12"> 9-12
</SELECT>
At server side in case of PHP, use functions like explode
[array] = explode([delimeter],[posted value]);
$values = explode(':',$_POST['val']
The above code returns an array that has only the numbers and the ':' get removed
Simplest way to do this:
<select name="demo_select">
<option value='{"key1":"111","key2":"222"}'>option1</option>
<option value='{"key1":"333","key2":"444"}'>option2</option>
</select>
on controller decode the request value as given below:
$values = json_decode($request->post('demo_select'));
$val1 = $values->key1;
$val2 = $values->key2;
echo "Value 1: ".$val1;
echo "Value 2: ".$val2;
output for the first option:
Value 1: 111
Value 2: 222
output for the second option:
Value 1: 333
Value 2: 444
Use a delimiter to separate the values.
<select name="myValues">
<option value="one|two">
</select>
<?php>
$value = filter_input(INPUT_POST, 'myValues');
$exploded_value = explode('|', $value);
$value_one = $exploded_value[0];
$value_two = $exploded_value[1];
?>
Duplicate tag parameters are not allowed in HTML. What you could do, is VALUE="1,2010". But you would have to parse the value on the server.
Instead of storing the options on the client-side, another way to do this is to store the options as sub-array elements of an associative/indexed array on the server-side. The values of the select tag would then just contain the keys used to dereference the sub-array.
Here is some example code. This is written in PHP since the OP mentioned PHP, but it can be adapted to whatever server-side language you are using:
<FORM action="" method="POST">
<SELECT NAME="Testing">
<OPTION VALUE="1"> One </OPTION>
<OPTION VALUE="2"> Two </OPTION>
<OPTION VALUE="3"> Three </OPTION>
</SELECT>
</FORM>
PHP:
<?php
$options = array(
1 => array('value1' => '1', 'value2' => '2010'),
2 => array('value1' => '2', 'value2' => '2122'),
3 => array('value1' => '3', 'value2' => '0'),
);
echo 'Selected option value 1: ' . $options[$_POST['Testing']]['value1'] . '<br>';
echo 'Selected option value 2: ' . $options[$_POST['Testing']]['value2'] . '<br>';
This may or may not be useful to others, but for my particular use case I just wanted additional parameters to be passed back from the form when the option was selected - these parameters had the same values for all options, so... my solution was to include hidden inputs in the form with the select, like:
<FORM action="" method="POST">
<INPUT TYPE="hidden" NAME="OTHERP1" VALUE="P1VALUE">
<INPUT TYPE="hidden" NAME="OTHERP2" VALUE="P2VALUE">
<SELECT NAME="Testing">
<OPTION VALUE="1"> One </OPTION>
<OPTION VALUE="2"> Two </OPTION>
<OPTION VALUE="3"> Three </OPTION>
</SELECT>
</FORM>
Maybe obvious... more obvious after you see it.
<select name="student" id="student">
<option value="">Select Student</option>
<option value="Student Name|Roll No">Student Name</option>
</select>
<input type="submit" name="submit" id="submit" value="submit"></form>
i use data-attribute to get the value with simple javascript and blade template.
<select class="form-control" id="channelTitle" name="channelTitle" onchange="idChannels()">
#foreach($post['channels'] as $channels)
<option value="{{ $channels->channel_title }}" data-id="{{ $channels->channel_id }}">{{ $channels->channel_title }}</option>
#endforeach
</select>
the data-id result here
<div class="form-group">
<strong>Channel Id:</strong>
<input type="text" name="channelId" id="channelId" class="form-control" placeholder="Channel Id">
</div>
javascript
<script>
function idChannels(){
var elem=document.getElementById("channelTitle");
var id = elem.options[elem.selectedIndex].getAttribute('data-id');
document.getElementById("channelId").value = id;
} </script>
you can use multiple attribute
<SELECT NAME="Testing" multiple>
<OPTION VALUE="1"> One
<OPTION VALUE="2"> Two
<OPTION VALUE="3"> Three