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ArrayKeySpacingRestrictionsStandard.xml
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<documentation title="Array Key Spacing Restrictions"> <standard> <![CDATA[ When referring to array items, only include a space around the index if it is a variable or the key is concatenated. ]]> </standard> <code_comparison> <code title="Valid: Correct spacing around the index keys"> <![CDATA[ $post = $posts<em>[ </em>$post_id<em> ]</em>; $post_title = $post<em>[ </em>'concatenated' . $title<em> ]</em>; $post = $posts<em>[ </em>HOME_PAGE<em> ]</em>; $post = $posts<em>[</em>123<em>]</em>; $post_title = $post<em>[</em>'post_title'<em>]</em>; ]]> </code> <code title="Invalid: Incorrect spacing around the index keys"> <![CDATA[ $post = $posts<em>[</em>$post_id<em>]</em>; $post_title = $post<em>[</em>'concatenated' . $title<em> ]</em>; $post = $posts<em>[</em>HOME_PAGE<em>]</em>; $post = $posts<em>[ </em>123<em> ]</em>; $post_title = $post<em>[ </em>'post_title'<em> ]</em>; ]]> </code> </code_comparison> </documentation>