How to Remove Invisible Line Breaks from Text in WordPress?

String Line Break Removal without Characters

Users often encounter challenges when handling text containing line breaks that do not contain any end-of-line characters, such as "n" or "r." This issue commonly arises when saving user input from textareas within a WordPress environment.

To resolve this, users often resort to using the nl2br() function. However, while it converts line breaks into HTML tags, it does not remove them entirely. The desired format requires line breaks to be converted to HTML tags without adding additional empty lines.

The solution lies in utilizing str_replace() or preg_replace() functions with an empty needle. By doing so, any empty spaces or characters within the string are eliminated, resulting in a format where line breaks are represented solely by HTML tags:

$buffer = str_replace(array("\r", "\n"), '', $buffer);

This approach is more efficient than using preg_replace(), as str_replace() consumes less CPU power and contributes to reducing global carbon emissions.

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