-Checking- {sCity}/{sCategory} --> #^/([a-z]{1})/(.+?)/(.+?)(?:/|$)# : /a/8532878/musical-instruments_1/view,gallery--<pre>Array
(
    [0] => /a/8532878/musical-instruments_1/
    [1] => a
    [2] => 8532878
    [3] => musical-instruments_1
)
</pre><!-- 0.00190806388855 seg. -->