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<title>Procedural PECL/rrd example</title>
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<h2 class="title">Procedural PECL/rrd example</h2>
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<p><strong>Example #1 Procedural usage of rrd</strong></p>
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<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$rrdFile </span><span style="color: #007700">= </span><span style="color: #0000BB">dirname</span><span style="color: #007700">(</span><span style="color: #0000BB">__FILE__</span><span style="color: #007700">) . </span><span style="color: #DD0000">"/speed.rrd"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">//create rrd file<br /></span><span style="color: #0000BB">rrd_create</span><span style="color: #007700">(</span><span style="color: #0000BB">$rrdFile</span><span style="color: #007700">,<br /> array(<br /> </span><span style="color: #DD0000">"--start"</span><span style="color: #007700">,</span><span style="color: #0000BB">920804400</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"DS:speed:COUNTER:600:U:U"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"RRA:AVERAGE:0.5:1:24"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"RRA:AVERAGE:0.5:6:10"<br /> </span><span style="color: #007700">)<br />);<br /><br /></span><span style="color: #FF8000">//update rrd file<br /></span><span style="color: #0000BB">rrd_update</span><span style="color: #007700">(</span><span style="color: #0000BB">$rrdFile</span><span style="color: #007700">,<br /> array(<br /> </span><span style="color: #DD0000">"920804700:12345"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"920805000:12357"<br /> </span><span style="color: #007700">)<br />);<br /><br /></span><span style="color: #FF8000">//graph output<br /></span><span style="color: #0000BB">rrd_graph</span><span style="color: #007700">(</span><span style="color: #0000BB">dirname</span><span style="color: #007700">(</span><span style="color: #0000BB">__FILE__</span><span style="color: #007700">) . </span><span style="color: #DD0000">"/speed.png"</span><span style="color: #007700">,<br /> array(<br /> </span><span style="color: #DD0000">"--start"</span><span style="color: #007700">, </span><span style="color: #DD0000">"920804400"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"--end"</span><span style="color: #007700">, </span><span style="color: #DD0000">"920808000"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"--vertical-label"</span><span style="color: #007700">, </span><span style="color: #DD0000">"m/s"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"DEF:myspeed=</span><span style="color: #0000BB">$rrdFile</span><span style="color: #DD0000">:speed:AVERAGE"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"CDEF:realspeed=myspeed,1000,*"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"LINE2:realspeed#FF0000"<br /> </span><span style="color: #007700">)<br />);<br /></span><span style="color: #0000BB">?></span>
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