adding escaping example

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@280938 c90b9560-bf6c-de11-be94-00142212c4b1

reference/pdo_4d/examples.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- $Revision: 1.1 $ -->
+<!-- $Revision: 1.2 $ -->
 
 <refentry xml:id="pdo-4d.examples" xmlns="http://docbook.org/ns/docbook">
  <refnamediv>
@@ -194,6 +194,64 @@ $db = null;
    </example>
   </para>
  </refsect1>
+
+ <refsect1 role="description">
+  <para>
+   <example>
+    <title>Escaping 4D table names</title>
+    <para>
+     This examples illustrates how to escape characters in a 
+     4D SQL query.
+    </para>
+    <programlisting role="php">
+<![CDATA[
+<?php
+$dsn = '4D:host=localhost;charset=UTF-8';
+$user = 'test';
+$pass = 'test';
+ 
+// Connection to 4D server 4D
+$db = new PDO_4D($dsn, $user, $pass);
+
+$objects = array('[',']','[]','][','[[',']]','[[[',']]]','TBL ]]32[23');
+
+foreach($objects as $id => $object) {
+    $object = str_replace(']',']]', $object);
+    print "$object\n";
+    
+    $db->exec('CREATE TABLE IF NOT EXISTS ['.$object.'](['.$object.'] FLOAT)');
+
+    $req = "INSERT INTO [$object] ([$object]) VALUES ($id);";
+    $db->query($req);
+
+   	$q = $db->prepare("SELECT [$object] FROM [$object]");
+	$q->execute();
+	$x[] = $q->fetch(PDO::FETCH_NUM);
+
+    $db->exec('DROP TABLE ['.$object.'];');
+}
+
+?>
+]]>
+    </programlisting>
+   </example>
+    &example.outputs;
+    <screen>
+<![CDATA[
+[
+]]
+[]]
+]][
+[[
+]]]]
+[[[
+]]]]]]
+TBL ]]]]32[23
+]]>
+    </screen>
+  </para>
+ </refsect1>
+
 </refentry>
 
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