pdo: fix typo and small mistake (#4267)

Author: KentarouTakeda

reference/pdo_pgsql/pdo-pgsql.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <reference xml:id="class.pdo-pgsql" role="class" xmlns="http://docbook.org/ns/docbook" xmlns:xi="http://www.w3.org/2001/XInclude">
- <title>The Pdo\pgsql class</title>
- <titleabbrev>Pdo\pgsql</titleabbrev>
+ <title>The Pdo\Pgsql class</title>
+ <titleabbrev>Pdo\Pgsql</titleabbrev>
 
  <partintro>
 

reference/pdo_pgsql/pdo/pgsql/copytoarray.xml

@@ -15,7 +15,7 @@
    <methodparam choice="opt"><type class="union"><type>string</type><type>null</type></type><parameter>fields</parameter><initializer>&null;</initializer></methodparam>
   </methodsynopsis>
   <simpara>
-   Copies data from <parameter>tableName</parameter> into array using <parameter>delimiter</parameter> as fields delimiter and <parameter>fields</parameter> list
+   Copies data from <parameter>tableName</parameter> into array using <parameter>separator</parameter> as fields delimiter and <parameter>fields</parameter> list
   </simpara>
  </refsect1>
 

reference/pdo_pgsql/pdo/pgsql/setnoticecallback.xml

@@ -65,7 +65,6 @@
    <programlisting role="php">
 <![CDATA[
 <?php
-<?php
 $pdo = new Pdo\Pgsql('pgsql:dbname=test host=localhost', $user, $pass);
 
 $pdo->exec('CREATE TABLE parent(id int primary key)');