What is the potential issue with displaying only the first line of text in a textarea in PHP?

Displaying only the first line of text in a textarea in PHP can be a potential issue because it may truncate the rest of the input. To solve this issue, you can use the PHP function nl2br() to convert newlines to HTML line breaks before displaying the text. This will ensure that all lines of text are properly displayed in the textarea. 

<?php
$text = $_POST['textarea_input'];
$text = nl2br($text);
echo $text;
?>

Keywords

textarea PHP substr newline display

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