diff --git a/reference/info/functions/memory-get-usage.xml b/reference/info/functions/memory-get-usage.xml
index 1d2e401efaf6..0646233df976 100644
--- a/reference/info/functions/memory-get-usage.xml
+++ b/reference/info/functions/memory-get-usage.xml
@@ -3,9 +3,9 @@
 <refentry xml:id="function.memory-get-usage" xmlns="http://docbook.org/ns/docbook">
  <refnamediv>
   <refname>memory_get_usage</refname>
-  <refpurpose>Returns the amount of memory allocated to PHP</refpurpose>
+  <refpurpose>Returns the amount of memory consumed by PHP script or allocated by system to PHP process</refpurpose>
  </refnamediv>
- 
+
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
@@ -13,8 +13,8 @@
    <methodparam choice="opt"><type>bool</type><parameter>real_usage</parameter><initializer>&false;</initializer></methodparam>
   </methodsynopsis>
   <para>
-   Returns the amount of memory, in bytes, that's currently being
-   allocated to your PHP script.
+   Returns the amount of memory, in bytes, that the PHP script is
+   currently using.
   </para>
  </refsect1>
 
@@ -27,15 +27,17 @@
      <listitem>
       <para>
        Set this to &true; to get total memory allocated from
-       system, including unused pages. 
-       If not set or &false; only the used memory is reported.
+       the system to the PHP process, including unused memory pages.
+       If not set or &false; only the memory used by PHP script is reported.
       </para>
      </listitem>
     </varlistentry>
    </variablelist>
   </para>
   <note>
-   <para>PHP does not track memory that is not allocated by <literal>emalloc()</literal></para>
+   <para>
+    PHP tracks only memory that is allocated by the internal function <literal>emalloc()</literal>.
+   </para>
   </note>
  </refsect1>
 
@@ -54,18 +56,19 @@
     <programlisting role="php">
 <![CDATA[
 <?php
+
 // This is only an example, the numbers below will
-// differ depending on your system
+// differ depending on the specific system
 
-echo memory_get_usage() . "\n"; // 36640
+echo memory_get_usage(), "\n"; // 36640
 
 $a = str_repeat("Hello", 4242);
 
-echo memory_get_usage() . "\n"; // 57960
+echo memory_get_usage(), "\n"; // 57960
 
 unset($a);
 
-echo memory_get_usage() . "\n"; // 36744
+echo memory_get_usage(), "\n"; // 36744
 
 ?>
 ]]>