How can developers determine where line breaks are made by users in form submissions?

Developers can determine where line breaks are made by users in form submissions by using the PHP nl2br() function. This function converts newlines in a string to HTML line breaks. By applying nl2br() to the form input, developers can maintain the line breaks made by users when displaying the submitted content on a webpage. 

// Get form input with line breaks
$userInput = $_POST['user_input'];

// Convert newlines to HTML line breaks
$processedInput = nl2br($userInput);

// Display the processed input
echo $processedInput;

Keywords

PHP form submissions line breaks nl2br htmlspecialchars

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