What potential issues can arise from excessive line breaks in a textarea input in PHP?

Excessive line breaks in a textarea input can lead to unnecessary white space in the output, making the text harder to read. To solve this issue, you can use the PHP `nl2br()` function to convert line breaks to HTML line breaks `<br>` tags, preserving the line breaks while displaying the text. 

&lt;?php
// Get the textarea input
$textarea_input = $_POST[&#039;textarea_input&#039;];

// Convert line breaks to HTML line breaks
$textarea_output = nl2br($textarea_input);

// Display the formatted text
echo $textarea_output;
?&gt;

Keywords

PHP textarea input excessive line breaks validation security

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