1<documentation title="Class Names"> 2 <standard> 3 <![CDATA[ 4 Classes should be given descriptive names. Avoid using abbreviations where possible. Class names should always begin with an uppercase letter. The PEAR class hierarchy is also reflected in the class name, each level of the hierarchy separated with a single underscore. 5 ]]> 6 </standard> 7 <code_comparison> 8 <code title="Examples of valid class names"> 9 <![CDATA[ 10Log 11Net_Finger 12HTML_Upload_Error 13 ]]> 14 </code> 15 <code title="Examples of invalid class names"> 16 <![CDATA[ 17log 18NetFinger 19HTML-Upload-Error 20 ]]> 21 </code> 22 </code_comparison> 23</documentation> 24