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Editorial Team
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Asked: 2026-05-26T11:19:36+00:00

I am pretty new to php world. I wrote the following: <html> <head> <title>It

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I am pretty new to php world. I wrote the following:

<html>
<head>
    <title>It joins simple1 and prac1 program together</title>
</head>
<body>
    <?php
        if($_POST['user'])
        {
            print "hello,";
            print $_POST['user'];
        }
        else{
        print <<<_HTML_
            <form method="post" action="$_server[PHP_SELF]">
                Your name:<input type="text" name="user">
                </br>
                <input type="submit" value="hello"> 
            </form>
        _HTML_;
        }           
    ?>
</body>
</html>  ---- line 23

Getting Error message:

Parse error: syntax error, unexpected $end in C:\wamp\www\php_practice\simple2.php on line 23

I have removed all html tags and just kept php tags it worked:

<?php
// Print a greeting if the form was submitted
if ($_POST['user']) {
print "Hello, ";
// Print what was submitted in the form parameter called 'user'
print $_POST['user'];
print "!";
} else {
// Otherwise, print the form
print <<<_HTML_
<form method="post" action="$_SERVER[PHP_SELF]">
Your Name: <input type="text" name="user">
<br/>
<input type="submit" value="Say Hello">
</form>
_HTML_;
}
?>

Output : Giving proper output but with an warning

Notice: Undefined index: user in C:\wamp\www\php_practice\test.php on line 3

  1. Why it is not working with the previous case? What is going wrong?

  2. How to remove or silent the warning message in the second code. It looks bad in the browser.

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1 Answer

  1. Editorial Team

    The cause of your parse error:

    The closing of a HEREDOC statement must occur at the beginning of a line with no whitespace before or after. You have your _HTML indented to the same level as the rest of your code, but it must occur at the very first character position of the line.

        _HTML_;

// Should be
_HTML_;

    The cause of your undefined index warning:

    To test if $_POST['user'] is set, use isset(). That will take care of your undefined index error.

    if(isset($_POST['user']))

    Update: The cause of the undefined variable _server notice:

    Inside a HEREDOC or double quoted string, you will need to wrap complex variables (arrays, objects) in {}. Also, place quotes around PHP_SELF.

    <form method="post" action="{$_SERVER['PHP_SELF']}">
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