php,html,select,drop-down-menu , Dynamically select from a dynamically generated dropdown
Dynamically select from a dynamically generated dropdown
Question:
Tag: php,html,select,drop-down-menu
I have a dynamically generated dropdown list - list of course identifiers and names. On the basis of a variable, “assigned_course_id”, I would like to preselect the appropriate value from the dropdown list. My best attempt is as follows. Thanks in advance for your assistance.
<select name="course_id" id="course_id">
<?php
$assigned_course_id = $assignment['course_id'];
foreach($courses as $course) { ?>
<option value="<?= $course['course_id']?><?php if ($assigned_course_id == $course['course_id']) echo "selected"; ?>"><?= $course['course_name'] ?></option>
<?php } ?>
</select>
Answer:
It is because you aren't ending the value attribute, so your selected option becomes <option value="optionvalueselected" -- 'optionvalue' being the value of your selected option, and 'selected' being the attribute you want to set, but won't be set because you never ended value
The following should work:
<select name="course_id" id="course_id">
<?php
$assigned_course_id = $assignment['course_id'];
foreach($courses as $course) { ?>
<option value="<?= $course['course_id']?>" <?php if ($assigned_course_id == $course['course_id']) { echo "selected"; } ?>><?= $course['course_name'] ?></option>
<?php } ?>
</select>
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