Apply suggestions from code review

Co-authored-by: Juliette <663378+jrfnl@users.noreply.github.com>

Author: rodrigoprimo

WordPress/Docs/PHP/RestrictedPHPFunctionsStandard.xml

@@ -5,23 +5,23 @@
     >
     <standard>
     <![CDATA[
-    Certain PHP functions must not be used, as they have been deprecated and removed from PHP or pose security risks. Use the recommended alternatives instead.
+    Certain PHP functions must not be used, as they pose security risks. Use the recommended alternatives instead.
     ]]>
     </standard>
     <code_comparison>
-        <code title="Valid: Using an anonymous function.">
+        <code title="Valid: Using an anonymous function (closure).">
         <![CDATA[
-$function = <em>function ()</em> {
+$function = <em>function () {
     return foo( 'bar' );
-};
+}</em>;
         ]]>
         </code>
         <code title="Invalid: Using create_function().">
         <![CDATA[
-$function = <em>create_function</em>(
+$function = <em>create_function(
     '',
     'return foo( "bar" );'
-);
+)</em>;
         ]]>
         </code>
     </code_comparison>