php-doc-en/reference/sqlite/functions/sqlite-exec.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.sqlite-exec" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>sqlite_exec</refname>
  <refname>SQLiteDatabase::exec</refname>
  <refpurpose>Executes a result-less query against a given database</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>bool</type><methodname>sqlite_exec</methodname>
   <methodparam><type>resource</type><parameter>dbhandle</parameter></methodparam>
   <methodparam><type>string</type><parameter>query</parameter></methodparam>
   <methodparam choice="opt"><type>string</type><parameter role="reference">error_msg</parameter></methodparam>
  </methodsynopsis>
  <methodsynopsis>
   <type>bool</type><methodname>sqlite_exec</methodname>
   <methodparam><type>string</type><parameter>query</parameter></methodparam>
   <methodparam><type>resource</type><parameter>dbhandle</parameter></methodparam>
  </methodsynopsis>
  <para>&style.oop; (method):</para>
  <methodsynopsis>
   <modifier>public</modifier> <type>bool</type><methodname>SQLiteDatabase::queryExec</methodname>
   <methodparam><type>string</type><parameter>query</parameter></methodparam>
   <methodparam choice="opt"><type>string</type><parameter role="reference">error_msg</parameter></methodparam>
  </methodsynopsis>
  <para>
   Executes an SQL statement given by the <parameter>query</parameter> against
   a given database handle (specified by the <parameter>dbhandle</parameter> 
   parameter).
  </para>
  <warning>
   <simpara>
    SQLite <emphasis>will</emphasis> execute multiple queries separated by
    semicolons, so you can use it to execute a batch of SQL that you have
    loaded from a file or have embedded in a script.
   </simpara>
  </warning>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>dbhandle</parameter></term>
     <listitem>
      <para>
       The SQLite Database resource; returned from
       <function>sqlite_open</function> when used procedurally. This parameter
       is not required when using the object-oriented method.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>query</parameter></term>
     <listitem>
      <para>
       The query to be executed.
      </para>
      <para>
       Data inside the query should be <link
       linkend="function.sqlite-escape-string">properly escaped</link>.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>error_msg</parameter></term>
     <listitem>
      <para>
       The specified variable will be filled if an error occurs. This is
       specially important because SQL syntax errors can't be fetched using
       the <function>sqlite_last_error</function> function.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
  &sqlite.param-compat;
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   This function will return a boolean result; &true; for success or &false; for failure.
   If you need to run a query that returns rows, see <function>sqlite_query</function>.
  </para>
  &sqlite.case-fold;
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <para>
   <informaltable>
    <tgroup cols="2">
     <thead>
      <row>
       <entry>&Version;</entry>
       <entry>&Description;</entry>
      </row>
     </thead>
     <tbody>
      <row>
       <entry>5.1.0</entry>
       <entry>
        Added the <parameter>error_msg</parameter> parameter
       </entry>
      </row>
     </tbody>
    </tgroup>
   </informaltable>
  </para>
 </refsect1>


 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>Procedural example</title>
    <programlisting role="php">
<![CDATA[
<?php
$dbhandle = sqlite_open('mysqlitedb');
$query = sqlite_exec($dbhandle, "UPDATE users SET email='jDoe@example.com' WHERE username='jDoe'", $error);
if (!$query) {
    exit("Error in query: '$error'");
} else {
    echo 'Number of rows modified: ', sqlite_changes($dbhandle);
}
?>
]]>
    </programlisting>
   </example>
  </para>
  <para>
   <example>
    <title>Object-oriented example</title>
    <programlisting role="php">
<![CDATA[
<?php
$dbhandle = new SQLiteDatabase('mysqlitedb');
$query = $dbhandle->queryExec("UPDATE users SET email='jDoe@example.com' WHERE username='jDoe'", $error);
if (!$query) {
    exit("Error in query: '$error'");
} else {
    echo 'Number of rows modified: ', $dbhandle->changes();
}
?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>
 
 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>sqlite_query</function></member>
    <member><function>sqlite_unbuffered_query</function></member>
    <member><function>sqlite_array_query</function></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>

<!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml
 sgml-omittag:t
 sgml-shorttag:t
 sgml-minimize-attributes:nil
 sgml-always-quote-attributes:t
 sgml-indent-step:1
 sgml-indent-data:t
 sgml-parent-document:nil
 sgml-default-dtd-file:"~/.phpdoc/manual.ced"
 sgml-exposed-tags:nil
 sgml-local-catalogs:nil
 sgml-local-ecat-files:nil
 End:
 vim600: syn=xml fen fdm=syntax fdl=2 si
 vim: et tw=78 syn=sgml
 vi: ts=1 sw=1
 -->