Sorts wp_list_pages-generated page lists by last name or, more generally, the last word of any page's title.
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PLEASE NOTE: Line 14 extracts each separate line of HTML from the original
wp_list_pages output and puts it into an array called
\n parameter tells the explode command that each line ends with a carriage return. However, as of WordPress 3.2.1, the explode command assumes each line ends when it finds an
n. As such, if developers edit the plugin using the WordPress code editor, they should add an extra backslash (
\) in front of the
n before saving the file (e.g,
$lines = explode("\\n", $val);). The line will revert to
$lines = explode("\n", $val); on save.