我得到了这段代码，可以重写自定义PostType的url。它只适用于第五部分的标题深度。如何调整它以使其接受多个深度？

e、 g.：

http://www.mydomain.com/post_type/category1/postname/
http://www.mydomain.com/post_type/category1/child1/postname/
http://www.mydomain.com/post_type/category1/child1/child2/postname/
http://www.mydomain.com/post_type/category1/child1/child2/child3/postname/

我尝试添加：

$newRules[\'product/(.+)/(.+)/(.+)/?$\'] = \'index.php?products=$matches[3]\';

但这不起作用，因为在上面的示例结构中浏览child3深度时，它会出现404错误。

当前代码：

function mmp_rewrite_rules($rules) {
$newRules  = array();
$newRules[\'product/(.+)/(.+)/(.+)/(.+)/?$\'] = \'index.php?products=$matches[4]\';
// The above structure only works if the postname is the 5th uri segment
// e.g. http://www.mydomain.com/post_type/category1/child1/child2/child3/postname/
$newRules[\'product/(.+)/?$\']                = \'index.php?pcategory=$matches[1]\'; 

return array_merge($newRules, $rules);
}

[更新1]

如果我将代码更改为if\'s和elseif\'s With，它也不会起作用elseif 只添加了最重要的规则，因此我只能浏览posttitle是url中第5段的产品。具有if 添加了所有规则，但我无法浏览深度为2,3和4的类别，但您可以在url位于3,4和5段的深度浏览产品

function mmp_rewrite_rules($rules) {
$newRules  = array();
if (\'index.php?products=$matches[4]\'){
$newRules[\'product/(.+)/(.+)/(.+)/(.+)/?$\'] = \'index.php?products=$matches[4]\';
} 
elseif (\'index.php?products=$matches[3]\'){
$newRules[\'product/(.+)/(.+)/(.+)/?$\'] = \'index.php?products=$matches[3]\';
}
elseif (\'index.php?products=$matches[2]\'){
$newRules[\'product/(.+)/(.+)/?$\'] = \'index.php?products=$matches[2]\';
}
// The above structure only works of the postname is the 5th uri segment
$newRules[\'product/(.+)/?$\']                = \'index.php?pcategory=$matches[1]\'; 

return array_merge($newRules, $rules);
}

function mmp_rewrite_rules($rules) {

//Product structure
$newRules[\'product/(.+)/(.+)/(.+)/(.+)/?$\'] = \'index.php?products=$matches[4]\';
//The above structure only works of the postname is the 5th uri segment

//It\'s more flexible to confugure the depths for each category below
$newRules[\'product/televisies/(.+)/(.+)/(.+)/?$\'] = \'index.php?products=$matches[3]\';
$newRules[\'product/sports/(.+)/?$\'] = \'index.php?products=$matches[1]\';

//Category rule
$newRules[\'product/(.+)/?$\']                = \'index.php?pcategory=$matches[1]\'; 

return array_merge($newRules, $rules);
}

product/(.+)/(.+)/(.+)/(.+)/?$

product/([^/]+/)+([^/]+)/?$