使用PHP将HTML复选框列表更改为选择下拉列表

Question

I am trying to create a html/php form that allows an array of data to be displayed in a drop/selection menu. How would i turn this into one?

<?php

$OptionID   =   1;

foreach( $this->setRoleOptions as $RoleID => $RoleName ) :

    echo '<div align="center">';
    echo '<input type="checkbox" style="width: 30px;" name="RoleID" value="'. $RoleID .'" ';

    if ( $OptionID == 1 ) :

        echo ' CHECKED ';

    endif;

    echo '/>&nbsp;'. $RoleName;
    echo '</div>';

    ++$OptionID; 

endforeach;

?>

I have tried the below code which gets the array but once the option is selected, nothing happens.

<?php
$OptionID = array("Administrative", "Operations 1", "Operations 2");
?>

<select>
    <?php foreach ($this->setRoleOptions as $RoleID => $RoleName): ?>
    <option name="RoleID" value="<?php echo $RoleID; ?>"<?php if ($row['RoleID'] == $OptionID): ?> selected="selected"<?php endif; ?>>
        <?php echo $RoleName;?>
    </option>
    <?php endforeach; ?>
</select>

Answer 1

To translate the checkboxes that you have currently, just create a simple <select> markup using the same data that you have.

Here's the idea:

<?php $OptionID = array("Administrative", "Operations 1", "Operations 2"); ?>

<select name="RoleID">
    <?php foreach ($this->setRoleOptions as $RoleID => $RoleName): ?>
    <option 
        value="<?php echo $RoleID; ?>" 
        <?php echo in_array($RoleID, $OptionID) ? 'selected: ''; ?>
    >
        <?php echo $RoleName; ?>
    </option>
    <?php endforeach; ?>
</select>

The name attribute should be on the select tag itself. The value attributes should be on the option tags.

And since on each iteration, you'd want to check whether the current $RoleID is inside the $OptionID which is an array, it would be better to use the built in function in_array() instead.