Admin Control Panel v2.0

✎ Editing: SuperfluousWhitespaceStandard.xml ← Back

<documentation title="Superfluous Whitespace">
 <standard>
 <![CDATA[
 There should be no superfluous whitespace at the start of a file.
 ]]>
 </standard>
 <code_comparison>
 <code title="Valid: No whitespace preceding first content in file.">
 <![CDATA[<?php
echo 'opening PHP tag at start of file';
 ]]>
 </code>
 <code title="Invalid: Whitespace used before content in file.">
 <![CDATA[
 
<?php
echo 'whitespace before opening PHP tag';
 ]]>
 </code>
 </code_comparison>
 <standard>
 <![CDATA[
 There should be no trailing whitespace at the end of lines.
 ]]>
 </standard>
 <code_comparison>
 <code title="Valid: No whitespace found at end of line.">
 <![CDATA[
echo 'semicolon followed by new line char';
 ]]>
 </code>
 <code title="Invalid: Whitespace found at end of line.">
 <![CDATA[
echo 'trailing spaces after semicolon'; 
 ]]>
 </code>
 </code_comparison>
 <standard>
 <![CDATA[
 There should be no consecutive blank lines in functions.
 ]]>
 </standard>
 <code_comparison>
 <code title="Valid: Functions do not contain multiple empty lines in a row.">
 <![CDATA[
function myFunction()
{
 echo 'code here';

echo 'code here';
}
 ]]>
 </code>
 <code title="Invalid: Functions contain multiple empty lines in a row.">
 <![CDATA[
function myFunction()
{
 echo 'code here';

echo 'code here';
}
 ]]>
 </code>
 </code_comparison>
 <standard>
 <![CDATA[
 There should be no superfluous whitespace after the final closing PHP tag in a file.
 ]]>
 </standard>
 <code_comparison>
 <code title="Valid: A single new line appears after the last content in the file.">
 <![CDATA[
function myFunction()
{
 echo 'Closing PHP tag, then';
 echo 'Single new line char, then EOF';
}

?>

 ]]>
 </code>
 <code title="Invalid: Multiple new lines appear after the last content in the file.">
 <![CDATA[
function myFunction()
{
 echo 'Closing PHP tag, then';
 echo 'Multiple new line chars, then EOF';
}

?>

]]>
 </code>
 </code_comparison>
</documentation>

Cancel