 style="color: #0000BB">strpos</span><span style="color: #007700">(</span><span style="color: #0000BB">$str</span><span style="color: #007700">,</span><span style="color: #DD0000">'&lt;cache:'</span><span style="color: #007700">)===</span><span style="color: #0000BB">0</span><span style="color: #007700">)&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">//&nbsp;opening&nbsp;cache&nbsp;tag<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #007700">{<br />&nbsp;&nbsp;&n