Mark an option as selected - php

Question

I am populating a dropdown menu with data in a database, using this code:
$query = "SELECT * FROM my_gallery";
$execute = mysqli_query($link, $query);
$results = mysqli_num_rows($execute);
if ($results!=0) {
echo '<label>The galleries are: ';
echo '<select id="galleries" name="galleries">';
echo '<option value=""></option>';
for ($i=0; $i<$results; $i++) {
$row = mysqli_fetch_array($execute);
$name = htmlspecialchars($row['galleryName']);
echo '<option value="' .$name. '">' .$name. '</option>';
}
echo '</select>';
echo '</label>';
}
I want to add the selected=selected to the option selected and then use that option in another query, but I have problem adding the selected tag in the actual selected entry.
More INFO:
I am using dropzone.js to upload images, and I want to select the category on the fly. The category has to be selected from the dropdown menu and used in the INSERT query.

Answer 1

if you have a form with POST then the code is
$selected = "";
if($_POST['galleries']==$name) $selected=" selected='selected'";
echo '<option value="' .$name. '"'.$selected.'>' .$name. '</option>';

Answer 2

Just as an example try this,
$query = "SELECT * FROM my_gallery";
$execute = mysqli_query($link, $query);
$results = mysqli_num_rows($execute);
if ($results!=0) {
echo '<label>The galleries are: ';
echo '<select id="galleries" name="galleries">';
echo '<option value=""></option>';
for ($i=0; $i<$results; $i++) {
$row = mysqli_fetch_array($execute);
$name = htmlspecialchars($row['galleryName']);
if( $i == 1 )
{
$sel = 'selected="selected"';
}
else
{
$sel = '';
}
echo '<option value="' .$name. '"'. $sel .' >' .$name. '</option>';
}
echo '</select>';
echo '</label>';
}

Answer 3

If you want to select a specific option then you are going to have a variable containing that specific option example:
$conditionalName = "Mark";
$query = "SELECT * FROM my_gallery";
$execute = mysqli_query($link, $query);
$results = mysqli_num_rows($execute);
if ($results!=0) {
echo '<label>The galleries are: ';
echo '<select id="galleries" name="galleries">';
echo '<option value=""></option>';
for ($i=0; $i<$results; $i++) {
$row = mysqli_fetch_array($execute);
$name = htmlspecialchars($row['galleryName']);
echo '<option value="' .$name. '"'; if($name=$conditionalName){ echo ' selected=selected';} echo '>'. $name. '</option>';
}
echo '</select>';
echo '</label>';
}