Hi guys,
I’m currently encountered this weird foreach() error,
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: controllers/admin.php
Line Number: 391
And these are the codes that has an error,
//Process lesson check boxes
if(isset($_POST['submitlesson'])) {
if(isset($_POST['boxlesson'])) {
foreach ($_POST['boxlesson'] as $id){ //This is the error line codes, Line Number: 391
echo 'lesson: '. $id .'<br>';
}
}
These are the source of the variable $boxlesson,
<?php
//Display lessons records
if(!empty($vdata_lessons)) {
foreach($vdata_lessons as $data) {
//$data['lessonid'] $data['namelesson']
$lesson_url = 'admin/cp_proc/' . $data['lessonid'] . '/lesson/';
$lesson_edit_url = 'admin/edit_lessons/' . $data['lessonid'];
?>
<input type="checkbox" name="boxlesson" value="<?php echo $data['lessonid']; ?>">
<a href="#">
<?php
echo $data['namelesson']. ' ';
?>
</a>
<a href="<?php echo site_url($lesson_edit_url); ?>">
<img src="<?php echo base_url('img/icon_edit.png'); ?>" alt="Edit record" height="20" width="20">
</a> <br>
<?php
}
}
?>
Actually the $_POST[‘boxlesson’] is just a variable name from textboxes inside a form (see above codes).
What I’m missing?
Thanks in advance.