an><span style="color: #007700">])?</span><span style="color: #0000BB">preg_split</span><span style="color: #007700">(</span><span style="color: #DD0000">'/\s*,\s*/'</span><span style="color: #007700">,</span><span style="color: #0000BB">trim</span><span style="color: #007700">(</span><span style="color: #0000BB">$criteria</span><span style="color: #007700">[</span><span style="color: #DD0000">'select'</span><span style="color: #007700">]),-</span><span style="color: #0000BB">1</span><span style="color: #00