This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness.

_cleanup_image_add_caption( $matches )

Private preg_replace callback used in image_add_caption()

Source

File: wp-admin/includes/media.php

function _cleanup_image_add_caption( $matches ) {
	// Remove any line breaks from inside the tags.
	return preg_replace( '/[\r\n\t]+/', ' ', $matches[0] );
}

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Changelog

Changelog
Version	Description
WP-3.4.0	Introduced.