尝试将这些行添加到主题中functions.php 文件：
// First of all lets remove standard hook
remove_filter(\'sanitize_title\', \'sanitize_title_with_dashes\');
// Add our custom hook for sanitize_title method
add_filter(\'sanitize_title\', \'custom_sanitize_title_with_dashes\', 10, 3);
/**
* Sanitizes a title, replacing whitespace and a few other characters with dashes.
*
* Limits the output to alphanumeric characters, underscore (_) and dash (-).
* Whitespace becomes a dash.
*
* @since 1.2.0
*
* @param string $title The title to be sanitized.
* @param string $raw_title Optional. Not used.
* @param string $context Optional. The operation for which the string is sanitized.
* @return string The sanitized title.
*/
function custom_sanitize_title_with_dashes($title, $raw_title = \'\', $context = \'display\') {
$title = strip_tags($title);
// Preserve escaped octets.
$title = preg_replace(\'|%([a-fA-F0-9][a-fA-F0-9])|\', \'---$1---\', $title);
// Remove percent signs that are not part of an octet.
$title = str_replace(\'%\', \'\', $title);
// Restore octets.
$title = preg_replace(\'|---([a-fA-F0-9][a-fA-F0-9])---|\', \'%$1\', $title);
if (seems_utf8($title)) {
if (function_exists(\'mb_strtolower\')) {
$title = mb_strtolower($title, \'UTF-8\');
}
$title = utf8_uri_encode($title, 3000);
}
$title = strtolower($title);
if ( \'save\' == $context ) {
// Convert nbsp, ndash and mdash to hyphens
$title = str_replace( array( \'%c2%a0\', \'%e2%80%93\', \'%e2%80%94\' ), \'-\', $title );
// Convert nbsp, ndash and mdash HTML entities to hyphens
$title = str_replace( array( \' \', \' \', \'–\', \'–\', \'—\', \'—\' ), \'-\', $title );
// Convert forward slash to hyphen
$title = str_replace( \'/\', \'-\', $title );
// Strip these characters entirely
$title = str_replace( array(
// iexcl and iquest
\'%c2%a1\', \'%c2%bf\',
// angle quotes
\'%c2%ab\', \'%c2%bb\', \'%e2%80%b9\', \'%e2%80%ba\',
// curly quotes
\'%e2%80%98\', \'%e2%80%99\', \'%e2%80%9c\', \'%e2%80%9d\',
\'%e2%80%9a\', \'%e2%80%9b\', \'%e2%80%9e\', \'%e2%80%9f\',
// copy, reg, deg, hellip and trade
\'%c2%a9\', \'%c2%ae\', \'%c2%b0\', \'%e2%80%a6\', \'%e2%84%a2\',
// acute accents
\'%c2%b4\', \'%cb%8a\', \'%cc%81\', \'%cd%81\',
// grave accent, macron, caron
\'%cc%80\', \'%cc%84\', \'%cc%8c\',
), \'\', $title );
// Convert times to x
$title = str_replace( \'%c3%97\', \'x\', $title );
}
$title = preg_replace(\'/&.+?;/\', \'\', $title); // kill entities
$title = str_replace(\'.\', \'-\', $title);
$title = preg_replace(\'/[^%a-z0-9 _-]/\', \'\', $title);
$title = preg_replace(\'/\\s+/\', \'-\', $title);
$title = preg_replace(\'|-+|\', \'-\', $title);
$title = trim($title, \'-\');
return $title;
}
或者尝试此插件：
Longer Permalinks.
