diff --git a/reference/math/functions/mt-rand.xml b/reference/math/functions/mt-rand.xml
index fdb909988d..7b1084af75 100644
--- a/reference/math/functions/mt-rand.xml
+++ b/reference/math/functions/mt-rand.xml
@@ -95,7 +95,7 @@
        <entry>7.1.0</entry>
        <entry>
         <function>mt_rand</function> <link linkend="migration71.incompatible.fixes-to-mt_rand-algorithm">has been updated</link> to use the fixed, correct, version of
-         the Mersenne Twister algorithm. To fall back to the old behaviour, use <function>mt_srand</function> with <constant>MT_RAND_PHP</constant> as the second paramter.
+         the Mersenne Twister algorithm. To fall back to the old behaviour, use <function>mt_srand</function> with <constant>MT_RAND_PHP</constant> as the second parameter.
        </entry>
       </row>
       <row>
diff --git a/reference/math/functions/mt-srand.xml b/reference/math/functions/mt-srand.xml
index 6f1a471675..b3894aec3f 100644
--- a/reference/math/functions/mt-srand.xml
+++ b/reference/math/functions/mt-srand.xml
@@ -99,7 +99,7 @@
        <entry>7.1.0</entry>
        <entry>
         <function>mt_rand</function> <link linkend="migration71.incompatible.fixes-to-mt_rand-algorithm">has been updated</link> to use the fixed, correct, version of
-         the Mersenne Twister algorithm. To fall back to the old behaviour, use <function>mt_srand</function> with <constant>MT_RAND_PHP</constant> as the second paramter.
+         the Mersenne Twister algorithm. To fall back to the old behaviour, use <function>mt_srand</function> with <constant>MT_RAND_PHP</constant> as the second parameter.
        </entry>
       </row>
       <row>
diff --git a/reference/mbstring/encodings.xml b/reference/mbstring/encodings.xml
index 1e2d4dde5a..f6de0ae1d3 100644
--- a/reference/mbstring/encodings.xml
+++ b/reference/mbstring/encodings.xml
@@ -219,7 +219,7 @@
     <seg>
      Shift_JIS was developed in early 80's, at the time personal Japanese word
      processors were brought into the market, in order to maintain
-     compatiblities with the legacy encoding scheme JIS X 0201:1976.
+     compatibilities with the legacy encoding scheme JIS X 0201:1976.
      According to the IANA definition the codeset of Shift_JIS is slightly
      different to IBM932 / CP932. However, the names "SJIS" / "Shift_JIS" are
      often wrongly used to refer to these codesets.
diff --git a/reference/mbstring/functions/mb-ereg-replace-callback.xml b/reference/mbstring/functions/mb-ereg-replace-callback.xml
index fd04831ad9..71f818b91c 100644
--- a/reference/mbstring/functions/mb-ereg-replace-callback.xml
+++ b/reference/mbstring/functions/mb-ereg-replace-callback.xml
@@ -3,7 +3,7 @@
 <refentry xml:id="function.mb-ereg-replace-callback" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
  <refnamediv>
   <refname>mb_ereg_replace_callback</refname>
-  <refpurpose>Perform a regular expresssion seach and replace with multibyte support using a callback
+  <refpurpose>Perform a regular expression search and replace with multibyte support using a callback
   </refpurpose>
  </refnamediv>
    
diff --git a/reference/mbstring/functions/mb-send-mail.xml b/reference/mbstring/functions/mb-send-mail.xml
index 777f193a6c..ab55b0e5aa 100644
--- a/reference/mbstring/functions/mb-send-mail.xml
+++ b/reference/mbstring/functions/mb-send-mail.xml
@@ -107,7 +107,7 @@
       <para>
        This parameter is escaped by <function>escapeshellcmd</function> internally
        to prevent command execution. <function>escapeshellcmd</function> prevents
-       command execution, but allows to add addtional parameters. For security reason,
+       command execution, but allows to add additional parameters. For security reason,
        this parameter should be validated.
       </para>
       <para>
diff --git a/reference/pcre/pattern.modifiers.xml b/reference/pcre/pattern.modifiers.xml
index b5f465ed3b..eeccf18229 100644
--- a/reference/pcre/pattern.modifiers.xml
+++ b/reference/pcre/pattern.modifiers.xml
@@ -107,7 +107,7 @@
        <caution>
         <para>
          Use of this modifier is <emphasis>discouraged</emphasis>, as it can easily introduce
-         security vulnerabilites:
+         security vulnerabilities:
         </para>
         <informalexample>
          <programlisting role="php">
diff --git a/reference/session/functions/session-create-id.xml b/reference/session/functions/session-create-id.xml
index 07c664ecf6..9e0287bd20 100644
--- a/reference/session/functions/session-create-id.xml
+++ b/reference/session/functions/session-create-id.xml
@@ -92,9 +92,9 @@ function my_session_regenerate_id() {
     // Make sure to accept user defined session ID
     // NOTE: You must enable use_strict_mode for normal operations.
     ini_set('session.use_strict_mode', 0);
-    // Set new custome session ID
+    // Set new custom session ID
     session_id($newid);
-    // Start with custome session ID
+    // Start with custom session ID
     session_start();
 }
 
diff --git a/reference/session/functions/session-start.xml b/reference/session/functions/session-start.xml
index 0222550b40..6a4ed979a1 100644
--- a/reference/session/functions/session-start.xml
+++ b/reference/session/functions/session-start.xml
@@ -227,7 +227,7 @@ session_start([
   <note>
    <para>
     To use cookie-based sessions, <function>session_start</function>
-    must be called before outputing anything to the browser.
+    must be called before outputting anything to the browser.
    </para>
   </note>
   <note>
diff --git a/reference/stream/functions/stream-filter-remove.xml b/reference/stream/functions/stream-filter-remove.xml
index 14b8c08994..a3d9ea9902 100644
--- a/reference/stream/functions/stream-filter-remove.xml
+++ b/reference/stream/functions/stream-filter-remove.xml
@@ -47,7 +47,7 @@
   &reftitle.examples;
   <para>
    <example>
-    <title>Dynamicly refiltering a stream</title>
+    <title>Dynamically refiltering a stream</title>
     <programlisting role="php">
 <![CDATA[
 <?php
diff --git a/reference/stream/functions/stream-socket-pair.xml b/reference/stream/functions/stream-socket-pair.xml
index 81713b725a..2dd936a239 100644
--- a/reference/stream/functions/stream-socket-pair.xml
+++ b/reference/stream/functions/stream-socket-pair.xml
@@ -110,7 +110,7 @@
     <title>A <function>stream_socket_pair</function> example</title>
     <para>
      This example shows the basic usage of
-     <function>stream_socket_pair</function> in Inter-Process Comunication.
+     <function>stream_socket_pair</function> in Inter-Process Communication.
     </para>
     <programlisting role="php">
 <![CDATA[
diff --git a/reference/stream/functions/stream-socket-recvfrom.xml b/reference/stream/functions/stream-socket-recvfrom.xml
index 7aaa7f132c..6ee96b3a44 100644
--- a/reference/stream/functions/stream-socket-recvfrom.xml
+++ b/reference/stream/functions/stream-socket-recvfrom.xml
@@ -108,7 +108,7 @@ $socket = stream_socket_accept($server);
 /* Grab a packet (1500 is a typical MTU size) of OOB data */
 echo "Received Out-Of-Band: '" . stream_socket_recvfrom($socket, 1500, STREAM_OOB) . "'\n";
 
-/* Take a peek at the normal in-band data, but don't comsume it. */
+/* Take a peek at the normal in-band data, but don't consume it. */
 echo "Data: '" . stream_socket_recvfrom($socket, 1500, STREAM_PEEK) . "'\n";
 
 /* Get the exact same packet again, but remove it from the buffer this time. */
diff --git a/reference/strings/functions/money-format.xml b/reference/strings/functions/money-format.xml
index cc4916e632..aa0136546b 100644
--- a/reference/strings/functions/money-format.xml
+++ b/reference/strings/functions/money-format.xml
@@ -287,7 +287,7 @@ echo money_format('%=*(#10.2n', $number) . "\n";
 // ($********1,234.57)
 
 // Let's justify to the left, with 14 positions of width, 8 digits of
-// left precision, 2 of right precision, withouth grouping character
+// left precision, 2 of right precision, without the grouping character
 // and using the international format for the de_DE locale.
 setlocale(LC_MONETARY, 'de_DE');
 echo money_format('%=*^-14#8.2i', 1234.56) . "\n";
diff --git a/reference/uopz/constants.xml b/reference/uopz/constants.xml
index 0adaa97519..ecf1751fff 100644
--- a/reference/uopz/constants.xml
+++ b/reference/uopz/constants.xml
@@ -16,7 +16,7 @@
     </term>
     <listitem>
      <simpara>
- Invoked by exit() and die(), recieves no arguments. Return boolean &true; to exit, &false; to continue
+ Invoked by exit() and die(), receives no arguments. Return boolean &true; to exit, &false; to continue
      </simpara>
     </listitem>
    </varlistentry>
@@ -49,7 +49,7 @@
     </term>
     <listitem>
      <simpara>
- Invoked upon composure, recieves the class the name of the class being fetched as the only argument
+ Invoked upon composure, receives the class the name of the class being fetched as the only argument
      </simpara>
     </listitem>
    </varlistentry>
@@ -60,7 +60,7 @@
     </term>
     <listitem>
      <simpara>
- Invoked upon composure, recieves the class the trait is being added to as the first argument, and the name of the trait as the second argument
+ Invoked upon composure, receives the class the trait is being added to as the first argument, and the name of the trait as the second argument
      </simpara>
     </listitem>
    </varlistentry>
@@ -71,7 +71,7 @@
     </term>
     <listitem>
      <simpara>
- Invoked upon composure, recieves the class the interface is being added to as the first argument, and the name of the interface as the second argument
+ Invoked upon composure, receives the class the interface is being added to as the first argument, and the name of the interface as the second argument
      </simpara>
     </listitem>
    </varlistentry>
@@ -82,7 +82,7 @@
     </term>
     <listitem>
      <simpara>
- Invoked by instanceof operator, recieves the object being verified as the first argument, and the name of the class which that object should be as the second argument
+ Invoked by instanceof operator, receives the object being verified as the first argument, and the name of the class which that object should be as the second argument
      </simpara>
     </listitem>
    </varlistentry>