getwarningcount.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: 99abc143277b0533c19fcc94ed8dc834ef830382 Maintainer: KentarouTakeda Status: ready -->
<!-- CREDITS: KentarouTakeda -->
<refentry xml:id="pdo-mysql.getwarningcount" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>Pdo\Mysql::getWarningCount</refname>
  <refpurpose>最後に実行したクエリの警告の数を返す</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis role="Pdo\\Mysql">
   <modifier>public</modifier> <type>int</type><methodname>Pdo\Mysql::getWarningCount</methodname>
   <void/>
  </methodsynopsis>
  <simpara>
   最後に実行したクエリの警告の数を返します。
  </simpara>
  <note>
   <simpara>
    警告メッセージを取得するには、次の SQL コマンドを使用できます:
    <literal>SHOW WARNINGS [limit row_count]</literal>
   </simpara>
  </note>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  &no.function.parameters;
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <simpara>
   最後に実行したクエリで発生した警告の数を <type>int</type> で返します。
  </simpara>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <example xml:id="pdo-mysql.getwarningcount.example.basic">
   <title><methodname>Pdo\Mysql::getWarningCount</methodname> の例</title>
   <programlisting role="php">
<![CDATA[
<?php

$conn = PDO::connect("mysql:host=localhost;dbname=test;charset=utf8mb4", 'user', 'password');

$conn->query('SELECT 42/0');
if ($conn->getWarningCount() > 0) {
    $result = $conn->query("SHOW WARNINGS");
    $row = $result->fetch();
    printf("%s (%d): %s\n", $row[0], $row[1], $row[2]);
}

?>
]]>
   </programlisting>
   &example.outputs;
   <screen>
<![CDATA[
Warning (1365): Division by 0
]]>
   </screen>
  </example>
 </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
indent-tabs-mode:nil
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
-->