wp-includes/deprecated.php:2983Accepts matches array from preg_replace_callback in wpautop() or a string.
$matchesarray|stringstringfunction clean_pre($matches) { _deprecated_function( __FUNCTION__, '3.4.0' ); if ( is_array($matches) ) $text = $matches[1] . $matches[2] . "</pre>"; else $text = $matches; $text = str_replace(array('<br />', '<br/>', '<br>'), array('', '', ''), $text); $text = str_replace('<p>', "\n", $text); $text = str_replace('</p>', '', $text); return $text;}Introduced in 1.2.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/deprecated.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.