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
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'm having problem with capturing the value from drop down list. This is my code for drop down list which is product id.
<select name="id" id="id" ONCHANGE="location =this.options[this.selectedIndex].value;" >
<option value="---">---</option>
<?php
foreach( $products as $ID => $info ){
echo '<option value="new_purchase.php?id=' . $ID . '"';
echo isset( $id ) && $id == $ID ? ' selected="selected"' : '';
echo '>' . $info['id'] . '</option>'; }
?>
</select>
And this is my code for capture the value.
$id = $mysqli->real_escape_string ($_POST['$("#id:selected").val()'] );
The query run but it stores 0 as product id value no matter what I chose.
Any helps would be appreciated.
You're mashing up PHP and JavaScript. You just need the name of the form field in your $_POST array:
$id = $mysqli->real_escape_string($_POST['$("#id:selected").val()']);
should be:
$id = $mysqli->real_escape_string($_POST['id']);
UPDATE
and change
echo '<option value="new_purchase.php?id=' . $ID . '"';
to
echo '<option value="' . $ID . '"';
UPDATE Part Deaux
and change
ONCHANGE="location =this.options[this.selectedIndex].value;"
to
ONCHANGE="location = 'new_purchase.php?id=' + this.options[this.selectedIndex].value;"
Since you are not submitting a form and just changing a window.location your POST array will be empty. Instead you should read GET parameter, not POST:
$id = $mysqli->real_escape_string($_GET['id']);
try this :
<select name="id" id="id" ONCHANGE="location ='http://site.com/new_purchase.php?id='+this.options[this.selectedIndex].value;" >
<option value="---">---</option>
<?php
foreach( $products as $ID => $info ){
echo '<option value="'.$ID .'"';
echo isset( $id ) && $id == $ID ? ' selected="selected"' : '';
echo '>' . $info['id'] . '</option>'; }
?>
</select>
i guess your database is expecting integer for the column of product id, right? so it is a mismatch of data type.
I have a dropdown menu populated from a table in a MySQL database. It functions, but I would like to add an if/else statement to the code to change the default value of the dropdown according to the conditions.
Here is the code for the dropdown (much thanks to AlienWebguy for his assistance in getting this far):
<?php
$sql="SELECT techID, tech_userlogin FROM technicians";
$result=mysql_query($sql);
while ($row=mysql_fetch_array($result))
{
$techID = $row['techID'];
$tech_userlogin=$row['tech_userlogin'];
// Here - check if the $_GET value in the query matches the tech_userlogin
($selected = ($tech_userlogin == $_GET['wtech_userlogin']) ? 'selected="selected"' : '');
echo '<option value="' . $tech_userlogin . '" ' . $selected . '>' . $tech_userlogin . '</option>' . "\n";
}
?>
I've tried a couple of things to accomplish what I'm after, but I'm severely hampered by my lack of experience and/or expertise in PHP/MySQL.
This is the first time I've tried these things and it has been hit and miss so far. I've recieved help here at Stack Overflow and I'm grateful such a resource exists.
This is my latest effort and it fails to achieve what I'm after. I want the default value of the dropdown to be "--Select Technician--" if the condition is not met in the if statement.
<?php
$sql="SELECT techID, tech_userlogin FROM technicians";
$result=mysql_query($sql);
$options="";
while ($row=mysql_fetch_array($result))
{
$techID = $row['techID'];
$tech=$row['tech_userlogin'];
$options.="<option value=\"$tech\">$tech</option>";
// Here - check if the $_GET value in the query matches the tech_userlogin
if
($selected = ($tech == $_GET['wtech_userlogin']) ? 'selected="selected"' : '')
{echo '<option value="' . $tech . '" ' . $selected . '>' . $tech . '</option>' . "\n";}
else
{echo '<option value="' . $options . '" . 'selected="selected"'>'--Select Tech--'<. $options .>' . "\n";}
}
?>
Can someone please help me or point me in the right direction? Many thanks.
Cheers
Try this
<select name="whatever">
<option value="">-- Select Technician --</option>
<?php while ($row = mysql_fetch_array($result)) :
$techId = $row['techID']; // why isn't this used?
$tech = htmlspecialchars($row['tech_userlogin']);
$selected = $row['tech_userlogin'] == $_GET['wtech_userlogin'] ? '" selected="selected' : '';
?>
<option value="<?php echo $tech, $selected ?>"><?php echo $tech ?></option>
<?php endwhile ?>
</select>
If the whole if/then is just there to create a default, you're making it way too complicated.
$options = '<option value="">--Select Tech--</option>';
while ($row=mysql_fetch_array($result))
{
$techID = $row['techID'];
$tech = $row['tech_userlogin'];
$selected = ($tech == $_GET['wtech_userlogin']) ? 'selected="selected"' : '';
$options .= '<option value="' . $techID . '" ' . $selected . '>' . $tech . '</option>' . "\n";
}
Now $options has all of your options in it, including a default option (--Select Tech--, with empty value) that shows up first, and will therefore start out selected if nothing else has the selected attribute.
Note that you also had $tech in the value of your option, but I assumed you meant to say $techID.
You wrote this, which isn't doing what you want:
($selected = ($tech == $_GET['wtech_userlogin']) ? 'selected="selected"' : '')
Change to this:
($selected = ($tech == $_GET['wtech_userlogin']) ? 'selected="selected"' : false)
Notice the 'false'. You need that because empty quotes is not false, it is considered 'true' by PHP.
I could be wrong, but I believe the problem is with your if statement. You have:
($selected = ($tech == $_GET['wtech_userlogin']) ? 'selected="selected"' : '')
The problem is that you are assigning the result of the ternary statement to the variable $selected, which will always return a true for a successful assignment.
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>";
}
?>