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archived-presentations/slides/advphp/cpuusage.xml
2002-07-23 12:22:50 +00:00

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<slide title="CPU Usage">
<list>
<bullet>Avoid Using frequent array accesses, remember, each array access is a
hash lookup.</bullet>
</list>
<example fontsize="1.2em" title="The Wrong Way"><![CDATA[<?php
$ar['name'] = 'Sterling';
for ($i = 0; $i < 20; ++$i) {
print $ar['name'];
}
?>]]>
</example>
<list>
<bullet>Shorten "required" executions, such as loops.</bullet>
<bullet>Avoid rebuilding large data structures.</bullet>
<bullet>Look for alternatives to regular expressions</bullet>
</list>
</slide>