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Code:

<html>
<head>
     <title>Isset()</title>
</head>
<body>
<?php
     $my_var
= 100;
   
     if(isset(
$my_var)) {
          print(
"\$my_var is set... the value is " . $my_var);
     }
   
     print(
"<br/>");
     print(isset(
$some_var) . "<br />");
   
     
$some_var = "I am set";
     print(isset(
$some_var) . "<br />");
?>
</body>
</html>




_________________
M. S. Rakha, Ph.D.
Queen's University
Canada


Author:
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PHP Functions






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