What potential pitfalls should be considered when using ereg_replace to handle line breaks in PHP?

When using ereg_replace to handle line breaks in PHP, one potential pitfall to consider is that ereg_replace is a deprecated function as of PHP 5.3.0 and has been removed in PHP 7. Instead, it is recommended to use the preg_replace function with the appropriate regular expression pattern to handle line breaks.

// Using preg_replace to handle line breaks
$text = "This is a text with line breaks\nthat need to be removed.";
$cleaned_text = preg_replace("/\r?\n/", "", $text);
echo $cleaned_text;