newline character not converting to line break in php text area post
Question
when i assign a text with newline character and use nl2br function it converts newline to line break but same doesn't happen with textarea post. I want to know why this is happening and also how to convert the newline character from textarea post of a form, to line-break when it is echoed. Below is my code:
<?php
if(isset($_POST['comment'])){
$var = "One line.\nAnother line.";
echo nl2br($var);
echo nl2br($_POST['comment']);
// One line.\nAnother line.
}
?>
<!DOCTYPE html>
<html>
<body>
<form method="post" action="">
<label for="lname">Commment</label><br>
<textarea name="comment" rows="5" cols="40">One line.\nAnother line.</textarea><br><br>
<input type="submit" value="Submit">
</form>
</body>
</html>
1 answers
solution1
1 ACCPTED 2021-02-09 17:09:20
You need to use an actual linebreak in you <textarea> . \n wont work there.
nl2br converts linebreaks to html <br> .
With php-code you can add a linebreak like this:
<textarea name="comment" rows="5" cols="40">One line.<?= "\n" ?>Another line.</textarea>
Or you spimply write:
<textarea name="comment" rows="5" cols="40">One line.
Another line.</textarea>
If you want to reuse the submitted value:
<textarea name="comment" rows="5" cols="40"><?= htmlentities($_POST['comment']) ?></textarea>
Be careful here, you want to sanitize your user-input with htmlentities($_POST['comment']) or the user will be able to alter the page.
Additional info
<?= $var?> is the short form of <?php echo $var; ?> <?php echo $var; ?>
References
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