I have a select box that shows 3 options: option1, option2, option3. When a user hits submit, then in $_POST I do have the value selected. Is there an easy way to redisplay the select box with the chosen option highlighted WITHOUT it being repeated in the options?
In other words, if option2 is selected and submit is clicked, the page should display again with option2 selected, and option1 and option 3 underneath.
Thanks.
<?php
$arrValues = array(...);
$selectedValue = (isset ($_POST['selectName']) ? $_POST['selectName'] : "");
?>
<select name="selectName">
<?php
for ($i = 0; $i < count($arrValues); $i++)
{
$opts = ($arrValues[$i] == $selectedValue) ? ' selected="selected"': '';
echo '<option value="' . $arrValues[$i] . '"' . $opts . '>' . $arrValues[$i] . '</option>';
}
?>
</select>
Create your options like this.
$options = array("optionvalue" => "Option Name");
foreach($options as $value => $name)
{
if(isset($_POST['select_box']))
{
if($_POST['select_box'] == $value)
{
echo '<option selected="selected" value="'.$value.'">'.$name.'</option>';
continue;
}
}
echo '<option value="'.$value.'">'.$name.'</option>';
}
When you generate the select box, use the POST data (if available) to pick the item that's selected (and/or to sort the items).
Kind of like:
if($_POST["optval"] == $opt) $sel = "selected='selected'"; else $sel = "";
print "<option value='$opt' " . $sel . ">$opt</option>";
Naturally you'd want to verify that the POST data is valid and that it exists (isset). Assuming of course that you generate your select box from data accessible by PHP, rather than statically define it.
Related
I have a wordpress site with a search form that searches for posts based on the form field selections, for custom fields etc. It works fine, however on the search results page I have an exact copy of the form except that I am trying to preset the form selections based on the search query/url string.
I am using a regular select dropdown and I have set it to "multiple" so that it can use bootstraps multiselect with the checkboxes. I've asked a similar question HERE but that was for checkboxes and even though the bootstrap multiselect uses checkboxes, I still have to work with the select dropdown first.
So after trying several things, I've come close but have ran into several problems. In the code below I made notes to further explain exactly what I mean.
<select name="property_type[]" id="pt-multi" class="form-control multi-select2" multiple="multiple">
<?php
$terms = get_terms( "property-type", array( 'hide_empty' => 0 ) );
$count = count($terms);
if ( $count > 0 ){
echo "<option value='Any'>All</option>";
foreach ( $terms as $term ) {
if (isset($_GET['property_type'])) {
foreach ($_GET['property_type'] as $proptypes) {
// FIRST EXAMPLE
$selected .= ($proptypes === $term->slug) ? "selected" : ""; // shows first correct selected value but also selects everything after it up until the second correct value, which it doesn't select.
//$selected = ($proptypes === $term->slug) ? "selected" : ""; // shows only last correct selected value
//if ($proptypes === $term->slug) { $selected = 'selected'; } // shows first correct selected value then selects every value after, even if it wasn't selected
// SECOND EXAMPLE
//$selected .= ($proptypes === $term->slug) ? "selected" : ""; // shows first correct selected value then selects every value after, even if it wasn't selected
//$selected = ($proptypes === $term->slug) ? "selected" : ""; // shows only last correct selected value
//if ($proptypes === $term->slug) { $selected = 'selected'; } // shows first correct selected value then selects every value after, even if it wasn't selected
}
}
echo "<option value='" . $term->slug . "' " . $selected . ">" . $term->name . "</option>"; // FIRST EXAMPLE
//echo "<option value='" . $term->slug . "' " . ($selected?' selected':'') . ">" . $term->name . "</option>"; // SECOND EXMAPLE
}
}
?>
</select>
Create and array and use in_array() to check.
<select name="property_type[]" id="pt-multi" class="form-control multi-select2" multiple="multiple">
<?php
$terms = get_terms("property-type", array('hide_empty' => 0));
$count = count($terms);
// Setup an array of $proptypes
$proptypes = array();
if (isset($_GET['property_type'])) {
foreach ($_GET['property_type'] as $proptype) {
$proptypes[] = $proptype;
}
}
if ($count > 0) {
echo "<option value='Any'>All</option>";
foreach ($terms as $term) {
$selected = (in_array($term->slug, $proptypes)) ? 'selected' : '';
echo "<option value='" . $term->slug . "' " . $selected . ">" . $term->name . "</option>";
}
}
?>
</select>
I have a database field country which I want to query and select that country option from a select element. Is there any way to do this without adding:
if (query->country == "<some country>"){echo "selected"}
in every single option tag? As there are hundreds of country options. Here is a little example of the code. Thank you.
$query = $query->fetch_object();
// which ever country is held in the variable `$query->country` should be selected
echo"<select>
<option>Afghanistan</option>
......
......
<option>Zimbabwe</option>
</select>";
Don't you have a list of all countries on your server?
$countries = ["Afghanistan", ... , "Zimbabwe"];
You could do something like this:
$selection = "Some country";
echo "<select>";
foreach($countries as $country)
{
if($country == $selection)
echo "<option selected>" . $country . "</option>";
else
echo "<option>" . $country . "</option>";
}
echo "</select>";
The IF still needs to be "placed" on every <option> but as a programmer you should do something like this:
$options = array( 'Afghanistan', '...', 'Zimbabwe' );
foreach( $options as $option )
{
$selected = ( $query->country == $option )? ' selected': '';
echo '<option' . $selected . '>' . $option . '</option>';
}
and if you're unfamiliar with ternary operator, the $selected = ... part above can be written like this:
if ( $query->country == $option )
{
$selected = ' selected';
}
else
{
$selected = '';
}
I have a country list of every country in a form to get a parcel quote.
When a user presses the "Get Quote" button, all the text forms retain the information previously entered using PHP.
How can I do this with the country list box? As I can't have PHP on every option checking if that is the country selected and adding "Selected" to the html.
Is there a better way other than generating the country list from a file in a loop?
EDIT:
Going for the method of looping through a file, and checking..
This is what I have so far:
$countries = fopen("includes/countries.txt", "r");
$countries = explode(";", $countries);
Then in the HTML:
<select id="countries" name="countries">
<?php
foreach ($countries as $country){
echo("<option value=\"" . $country . "\">" . $country . "</option>");
}
?>
</select>
Not yet finished.
I assume you have an array with your countries stored. You could try something like this:
$countries = array('Albania', 'Egypt');
$selected_country_id = $_GET['c_id']; // You may need to change this to match with your code
$country_selected = array();
foreach($countries as $country) {
if($country['id'] == $selected_country_id) {
$country_selected[ $country['id'] ] = ' selected ';
} else {
$country_selected[ $country['id'] ] = '';
}
}
Then, assuming that you dynamically add your Select-Options, do this:
// In your each-fn
echo '<option value="' . $country['id'] . '" ' . $country_selected[ $country['id'] ] . '>' . $country['name'] . '</option>';
Something like this would be better
foreach ($countries as $country) {
?>
<option value="<?php echo $country" <?php echo ($country == $_POST['country'] ? 'selected' : ''; ?>><?php echo $country; ?></option>
<?php
}
<select id="countries" name="countries">
<?php
foreach ($countries as $country){
if(isset($_POST["country"]) && $_POST["country"] == $country){
$sel = "selected";
}else { $sel= ""; }
echo("<option value=\"" . $country . "\"" .$sel.">" . $country . "</option>");
}
?>
</select>
Get All Country-State-City Selectbox ....!!!
See Link : GitHub
I have the code to select the values from a database for populating my drop down list. But my question is if I stored the value of what the user selected in another database, how would I go about pulling that back out and making that the selected choice.
<select name="dropdown1" id="dropdown1">
<?php
for ($i = 0; $i < 5; $i++)
{
print '<option id="'.$options[$i]["ID"].'" value="'.$options[$i]["Value"].'">'.$options[$i]["Name"].'</option>'."\n";
}
?>
</select>
So the users stored value is lets say red. How would I make red the selected value as it populates my drop down list?
Thanks e
<select name="dropdown1" id="dropdown1">
<?php
$selected = "red";
for ($i = 0; $i < 5; $i++)
{
if ($options[$i]['Value'] == $selected) {
print '<option selected="selected" id="'.$options[$i]["ID"].'" value="'.$options[$i]["Value"].'">'.$options[$i]["Name"].'</option>'."\n";
} else {
print '<option id="'.$options[$i]["ID"].'" value="'.$options[$i]["Value"].'">'.$options[$i]["Name"].'</option>'."\n";
}
}
?>
</select>
On each element test the value. If the value is selected, print 'selected'.
<select name="dropdown1" id="dropdown1">
<?php
$selected = 'red';// obviously replace with DB value.
for ($i = 0; $i < 5; $i++)
{
// start as normal
print '<option id="'.$options[$i]["ID"].'" value="'.$options[$i]["Value"].'"';
// if this one is selected, add 'selected' to the tag.
// NOTE: booleans in HTML do not need to have an attribute value.
// so selected="selected" is not necessary here.
if( $options[$i]["Value"] == $selected ) print ' selected';
// finish as normal
print '>'.$options[$i]["Name"].'</option>'."\n";
}
?>
</select>
As a side note: if you use foreach it will make for smaller, more compact, and often faster code:
//this assumes that you want to iterate the whole options array
foreach( $options as $option )
{
print '<option id="'.$option["ID"].'" value="'.$option["Value"].'"';
if( $option["Value"] == $selected ) print ' selected';
print '>'.$option["Name"].'</option>'."\n";
}
When displaying a form on a page for a user to edit information, and the form consists of a drop down box, how do you loop through the selections in the dropdown box to select their predefined mySQL entry?
For example
Users country: Australia
How would I go about searching through a list of countries ie: http://snipplr.com/view/4792/country-drop-down-list-for-web-forms/ to make:
<option value="AU">Australia</option>
become
<option value="AU" selected="selected">Australia</option>
You could do something like:
<?php
$countries = array('AU' => 'Australia', 'AF' => 'Afghanistan', ...);
$selected = 'AU';
foreach ($countries as $code => $label) {
echo '<option value="' . $code . '"';
if ($selected == $code) {
echo ' selected="selected"';
}
echo '>' . $label . '</option>';
}
?>
Not the prettiest but you get the idea. As Shakti suggests, it's also easier to maintain if the values are in the DB and not in a massive array in the middle of the code.
Could be something like this:
<?php
//your query here
$sql = "SELECT * FROM countries ORDER BY code ASC";
$result_set = $database->query($sql);
while($country = $database->fetch_array($result_set)) {
if ($country["code"] == "AU"){
echo "<option value=\"{$country['code']}\" selected=\"selected\">{$country['name']}</option>";
}
else {
echo "<option value=\"{$country['code']}\">{$country['name']}</option>";
}
?>