mirror of
https://github.com/sigmasternchen/php-doc-en
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008a657c1a
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@172550 c90b9560-bf6c-de11-be94-00142212c4b1
147 lines
3.9 KiB
XML
147 lines
3.9 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.7 $ -->
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<refentry id="function.mysqli-warning-count">
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<refnamediv>
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<refname>mysqli_warning_count</refname>
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<refname>mysqli->warning_count</refname>
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<refpurpose>Returns the number of warnings from the last query for the given link</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<para>Procedural style:</para>
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<methodsynopsis>
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<type>int</type><methodname>mysqli_warning_count</methodname>
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<methodparam><type>mysqli</type><parameter>link</parameter></methodparam>
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</methodsynopsis>
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<para>Object oriented style (property):</para>
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<classsynopsis>
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<ooclass><classname>mysqli</classname></ooclass>
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<fieldsynopsis><type>int</type><varname>warning_count</varname></fieldsynopsis>
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</classsynopsis>
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<para>
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<function>mysqli_warning_count</function> returns the number of warnings
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from the last query in the connection represented by the
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<parameter>link</parameter> parameter.
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</para>
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<note>
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<para>
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For retrieving warning messages you can use the SQL command
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<literal>SHOW WARNINGS [limit row_count]</literal>.
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</para>
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</note>
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</refsect1>
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<refsect1>
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&reftitle.returnvalues;
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<para>
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Number of warnings or zero if there are no warnings.
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</para>
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</refsect1>
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<refsect1>
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&reftitle.seealso;
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<para>
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<function>mysqli_errno</function>,
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<function>mysqli_error</function>&listendand;
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<function>mysqli_sqlstate</function>.
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</para>
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</refsect1>
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<refsect1>
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&reftitle.examples;
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<example>
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<title>Object oriented style</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
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/* check connection */
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if (mysqli_connect_errno()) {
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printf("Connect failed: %s\n", mysqli_connect_error());
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exit();
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}
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$mysqli->query("CREATE TABLE myCity LIKE City");
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/* a remarkable city in Wales */
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$query = "INSERT INTO myCity (CountryCode, Name) VALUES('GBR',
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'Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch')";
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$mysqli->query($query);
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if ($mysqli->warning_count) {
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if ($result = $mysqli->query("SHOW WARNINGS")) {
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$row = $result->fetch_row();
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printf("%s (%d): %s\n", $row[0], $row[1], $row[2]);
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$result->close();
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}
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}
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/* close connection */
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$mysqli->close();
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?>
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]]>
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</programlisting>
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</example>
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<example>
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<title>Procedural style</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$link = mysqli_connect("localhost", "my_user", "my_password", "world");
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/* check connection */
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if (mysqli_connect_errno()) {
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printf("Connect failed: %s\n", mysqli_connect_error());
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exit();
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}
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mysqli_query($link, "CREATE TABLE myCity LIKE City");
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/* a remarkable long city name in Wales */
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$query = "INSERT INTO myCity (CountryCode, Name) VALUES('GBR',
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'Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch')";
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mysqli_query($link, $query);
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if (mysqli_warning_count($link)) {
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if ($result = mysqli_query($link, "SHOW WARNINGS")) {
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$row = mysqli_fetch_row($result);
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printf("%s (%d): %s\n", $row[0], $row[1], $row[2]);
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mysqli_free_result($result);
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}
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}
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/* close connection */
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mysqli_close($link);
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?>
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]]>
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</programlisting>
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</example>
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&example.outputs;
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<screen>
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<![CDATA[
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Warning (1264): Data truncated for column 'Name' at row 1
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]]>
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</screen>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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