Do I need $_GET[" "]; autoglobal with php embedded form page?

Howdy, just wondering if someone can help me get this form working. Everything is right, I think, except for the autoglobal.

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<body>

<h1>Reverse String</h1><hr />

<?php

$ReverseString = $_GET["input_text"]; // I think this is where the problem lies

if (!isset($_GET['input_text']))

     echo "<p>Enter the string you want to reverse.</p>";

else{

     $ForwardString = $$_GET['input_text'];

     $ReverseString = strrev($ForwardString);

     echo "<p>'$ForwardString' spelled backwards is '$ReverseString'.</p>";

}

?>

<form action="ReverseString.php" method="get" enctype="application/x-www-form-urlencoded">

<p><input type="text" name="input_text" size="20" value="<?php if (!empty($_GET['input_text'])) echo $_GET['input_text'] ?>" /></p>

<p><input type="submit" value="Reverse String" />

</form><hr />

</body>

Sep 16 '07 #1

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2015

ak1dnar

1,584

Expert 1GB

Check this out: I made some changes to your original script. If there any doubt feel free to ask after going through this.

ReverseString.php

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<body>

<h1>Reverse String</h1><hr />

<?php

if(isset($_GET['submit_button'])){

    $ForwardString = $_GET['input_text'];

    if (!empty($ForwardString)){

    $ReverseString = strrev($ForwardString);

    echo "<p>'$ForwardString' spelled backwards is '$ReverseString'.</p>";

    }else{

    echo "<p>Enter the string you want to reverse.</p>";

    }

}

?>

<form action="ReverseString.php" method="get" enctype="application/x-www-form-urlencoded">

<p><input type="text" name="input_text" size="20" value="<?php if (!empty($_GET['input_text'])) echo $_GET['input_text'] ?>" /></p>

<p><input name="submit_button" type="submit" value="Reverse String" />

</form><hr />

</body>

Sep 16 '07 #2

Atli

5,058

Expert 4TB

Hi Daryl.

The only thing I could see wrong with your original code is that you have and extra $ in line 8. Should have caused a Syntax error if you have error messages enabled.

I would, however, recommend checking out the code ajaxrand posted and adopt some of the changes he made.

Also, consider using POST rather than GET. It is a much better way of sending text.

Sep 16 '07 #3

daryl

Thanks guys for replying. I was hoping it was just the $ sign...but no. wow ajaxrand, thanks for your input, although I'm not that good yet to decifer exactly what you did. This code is actually for part of a school project and I think everything was right except for line 4. I just kinda guessed at it. I took it out and it seems to make no difference in the results. I tried your code too. Same thing happens, the php script reads out in the text field. I've tried everything that I know. Any ideas?

Sep 16 '07 #4

Atli

5,058

Expert 4TB

What exactly is the problem?
Are you getting any error messages?

If you are not sure about this form stuff, check out this article I wrote about them.

Sep 17 '07 #5

daryl

No error messages. Just when I open the page, the text field that a user enters the info into is already filled....with the php script that's embedded in the input tag on line 14.

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<?php if (!empty($_GET['input_text'])) echo $_GET['input_text'] ?>

Sep 17 '07 #6

ak1dnar

1,584

Expert 1GB

No error messages. Just when I open the page, the text field that a user enters the info into is already filled....with the php script that's embedded in the input tag on line 14.

Expand|Select|Wrap|Line Numbers

<?php if (!empty($_GET['input_text'])) echo $_GET['input_text'] ?>

Why we using this line to re-dispaly the user entered data once you pressed the button. but It'll never display any INPUT when you loading the page for first time. I think you are using the the code my previous coding instead of yours now. Any Quiz?

Sep 17 '07 #7

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