warning-count.xml

<?xml version="1.0" encoding="utf-8"?>
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<!-- EN-Revision: de5eb4b437c0560b8ceb3ec5011fb02a3c57028d Maintainer: nobody Status: ready -->
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<!-- Rev-Revision: de5eb4b437c0560b8ceb3ec5011fb02a3c57028d Reviewer: samesch -->
<refentry xml:id="mysqli.warning-count" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>mysqli::$warning_count</refname>
  <refname>mysqli_warning_count</refname>
  <refpurpose>
   Liefert die Anzahl der Warnungen, die durch die letzte Abfrage erzeugt wurden
  </refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <para>&style.oop;</para>
  <fieldsynopsis><type>int</type><varname linkend="mysqli.warning-count">mysqli-&gt;warning_count</varname></fieldsynopsis>
  <para>&style.procedural;</para>
  <methodsynopsis>
   <type>int</type><methodname>mysqli_warning_count</methodname>
   <methodparam><type>mysqli</type><parameter>mysql</parameter></methodparam>
  </methodsynopsis>
  <para>
   Gibt die Anzahl der Warnungen zurück, die durch die letzte Abfrage über die
   angebene Verbindung erzeugt wurden.
  </para>
  <note>
   <simpara>
    Für das Ermitteln der Warnungen kann der SQL-Befehl <literal>SHOW WARNINGS
    [limit row_count]</literal> verwendet werden.
   </simpara>
  </note>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    &mysqli.link.description;
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Die Anzahl der Warnungen oder 0, falls es keine Warnungen gibt.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <example>
   <title><varname>$mysqli-&gt;warning_count</varname>-Beispiel</title>
   <para>&style.oop;</para>
   <programlisting role="php">
<![CDATA[
<?php

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");

$mysqli->query("SELECT 42/0");

if ($mysqli->warning_count > 0) {
    $result = $mysqli->query("SHOW WARNINGS");
    $row = $result->fetch_row();
    printf("%s (%d): %s\n", $row[0], $row[1], $row[2]);
}
]]>
   </programlisting>
   <para>&style.procedural;</para>
   <programlisting role="php">
<![CDATA[
<?php

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$link = mysqli_connect("localhost", "my_user", "my_password", "world");

mysqli_query($link, "SELECT 42/0");

if (mysqli_warning_count($link) > 0) {
    $result = mysqli_query($link, "SHOW WARNINGS");
    $row = mysqli_fetch_row($result);
    printf("%s (%d): %s\n", $row[0], $row[1], $row[2]);
}
]]>
   </programlisting>
   &examples.outputs;
   <screen>
<![CDATA[
Warning (1365): Division by 0
]]>
   </screen>
  </example>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>mysqli_errno</function></member>
    <member><function>mysqli_error</function></member>
    <member><function>mysqli_sqlstate</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>
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