lor: #0000BB">substr</span><span style="color: #007700">(</span><span style="color: #0000BB">$key</span><span style="color: #007700">,</span><span style="color: #0000BB">0</span><span style="color: #007700">,</span><span style="color: #0000BB">$pos</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if(</span><span style="color: #0000BB">$pos2</span><span style="color: #007700">===</span><span style="color: #0000BB">$pos</span><span style="color