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Editorial Team
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Asked: 2026-05-16T05:33:38+00:00

I haven’t found anytihng in Google or the PHP manual, believe it or not.

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I haven’t found anytihng in Google or the PHP manual, believe it or not. I would’ve thought there would be a string operation for something like this, maybe there is and I’m just uber blind today…

I have a php page, and when the button gets clicked, I would like to change a string of text on that page with something else.

So I was wondering if I could set the id="" attrib of the <p> to id=”something” and then in my php code do something like this:

<?php
    $something = "this will replace existing text in the something paragraph...";
?>

Can somebody please point me in the right direction? As the above did not work.

Thank you 🙂

UPDATE

I was able to get it working using the following sample:

Place this code above the <html> tag:

<?php
$existing  = "default message here";
    $something = "message displayed if form filled out.";
    $ne = $_REQUEST["name"];

    if ($ne == null) {
      $output = $existing;
    } else {
      $output = $something;
    }
?>

And place the following where ever your message is to be displayed:

<?php echo $output ?>
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1 Answer

  1. Editorial Team

    As far as I can get from your very fuzzy question, usually you don’t need string manipulation if you have source data – you just substitute one data with another, this way:

    <?php
    $existing  = "existing text";
    $something = "this will replace existing text in the something paragraph...";
    if (empty($_GET['button'])) {
      $output = $existing;
    } else {
      $output = $something;
    }
?>
<html>
<and stuff>
<p><?php echo $output ?></p>
</html>

    but why not to ask a question bringing a real example of what you need? instead of foggy explanations in terms you aren’t good with?

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