Why is the PHP variable defined as $real in the code below empty but still set after one iteration of the while loop yet the $entry variable is both set and contains the correct value on every iteration of the loop. Does the calling of a function '' put the resulting variable outside of the scope and if so how can I fix this?
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Total </title>
<link type="text/css" rel="stylesheet" href="course.css">
<script src="../jquery.js"></script>
<script src="../jquery-ui.js"></script>
</head>
<body>
<?php
if ($handle = opendir('../uploads'))
{
while (false !== ($entry = readdir($handle)))
{
if ($entry != "." && $entry != "..")
{
$real= realpath($entry);
echo "<button class='files accordian'>$entry $real</button>";
$real= realpath($entry);
if(isset($real))
{
echo 'the real varibale is set';
}
else
{
echo 'the real varibale is not set';
}
if(empty($real))
{
echo 'the real varibale is empty';
}
else
{
echo 'the real varibale is not empty';
echo 'and is '. $real;
}
echo "<button class='files accordian'>$entry $real</button>
<div class='panel'>
<p>$real</p>";
}
}
}
?>
</body>
</html>
