“选择使用PHP”中的HTML默认选项不起作用

Question

I'm bug-proofing a form that allows data editing for book entries in a database. Everything is working except for the drop-down box. The drop-down box automatically populates itself with every unique entry in a specific field in the database table, and that part works perfectly. However, when people click to edit a book all the fields are populated with that books information, and I wanted the drop-down box to default to the correct value for that book. My solution was to check each value as it populates the drop-down box against the actual book's value for that field and if they match, make it the "selected" value.

It is not working. The box is still populating fine, but it is not defaulting. Here is the code for the drop-down box.

<span style="margin-left:10px;">
 Publication Type: 
 <select name="publicationType" >
  <option value=""></option>
  <option value="">-------------------------</option>
  <?php 
   $lPub = '';
   if(array_key_exists('publicationType',$_REQUEST)) $lPub = $_REQUEST['publicationType'];
    $lPubArr = $datasetManager->getPublicationType();
    foreach($lPubArr as $pubStr){
    if($pubStr == $bookArr['publicationType']){
     echo '<option '.($lPub==$pubStr?'selected="selected"':'').'>'.$pubStr.'</option>'."\n";
    }
    else{
     echo '<option '.($lPub==$pubStr?'':'').'>'.$pubStr.'</option>'."\n";
    }
   } 
  ?>
 </select>
</span>

I can provide what all the variables are if needed. I don't see what I'm doing wrong, but maybe someone will be able to catch an obvious mistake.

Thank you, Kai

Answer 1

Not sure this will help but try this:

<?php 
   $lPub = '';
   if( array_key_exists('publicationType',$_REQUEST) )
        $lPub = $_REQUEST['publicationType'];
   $lPubArr = $datasetManager->getPublicationType();
   foreach($lPubArr as $pubStr){
     echo '<option '.($lPub==$pubStr?'selected="selected"':'').'>'.$pubStr.'</option>'."\n";
   }

---

I removed this condition:

f($pubStr == $bookArr['publicationType'])

since I didn't get what the $bookArr['publicationType'] is used for, perhaps you left it there by mistake