mirror of
https://github.com/sigmasternchen/php-doc-en
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c030e2adf7
- All id attributes are now xml:id - Add docbook namespace to all root elements - Replace <ulink /> with <link xlink:href /> - Minor markup fixes here and there git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@238160 c90b9560-bf6c-de11-be94-00142212c4b1
161 lines
4.3 KiB
XML
161 lines
4.3 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.5 $ -->
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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.maxdb-query">
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<refnamediv>
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<refname>maxdb_query</refname>
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<refname>maxdb->query</refname>
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<refpurpose>Performs a query on the database</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<para>Procedural style:</para>
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<methodsynopsis>
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<type>mixed</type><methodname>maxdb_query</methodname>
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<methodparam><type>resource</type><parameter>link</parameter></methodparam>
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<methodparam><type>string</type><parameter>query</parameter></methodparam>
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<methodparam choice='opt'><type>int</type><parameter>resultmode</parameter></methodparam>
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</methodsynopsis>
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<para>Object oriented style (method):</para>
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<classsynopsis>
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<ooclass><classname>maxdb</classname></ooclass>
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<methodsynopsis>
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<type>mixed</type>
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<methodname>query</methodname>
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<methodparam><type>string</type><parameter>query</parameter></methodparam>
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</methodsynopsis>
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</classsynopsis>
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<para>
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The <function>maxdb_query</function> function is used to simplify the
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act of performing a query against the database represented by the
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<parameter>link</parameter> parameter.
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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&return.success; For <literal>SELECT, SHOW, DESCRIBE</literal> or
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<literal>EXPLAIN</literal> <function>maxdb_query</function> will return
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a result resource.
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</para>
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</refsect1>
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<refsect1 role="examples">
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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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$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");
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/* check connection */
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if (maxdb_connect_errno()) {
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printf("Connect failed: %s\n", maxdb_connect_error());
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exit();
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}
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/* Create table doesn't return a resultset */
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if ($maxdb->query("CREATE TABLE temp.mycity LIKE hotel.city") === TRUE) {
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printf("Table mycity successfully created.\n");
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}
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/* Select queries return a resultset */
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if ($result = $maxdb->query("SELECT name FROM hotel.city")) {
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printf("Select returned %d rows.\n", $result->num_rows);
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/* free result set */
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$result->close();
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}
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/* If we have to retrieve large amount of data we use MAXDB_USE_RESULT */
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if ($result = $maxdb->query("SELECT * FROM hotel.city", MAXDB_USE_RESULT)) {
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$result->close();
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}
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$maxdb->close();
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?>
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]]>
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</programlisting>
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</example>
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<example>
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<title>Procedural style</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
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/* check connection */
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if (maxdb_connect_errno()) {
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printf("Connect failed: %s\n", maxdb_connect_error());
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exit();
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}
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/* Create table doesn't return a resultset */
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if (maxdb_query($link, "CREATE TABLE temp.mycity LIKE hotel.city") === TRUE) {
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printf("Table mycity successfully created.\n");
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}
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/* Select queries return a resultset */
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if ($result = maxdb_query($link, "SELECT name FROM hotel.city")) {
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printf("Select returned %d rows.\n", maxdb_num_rows($result));
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/* free result set */
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maxdb_free_result($result);
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}
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/* If we have to retrieve large amount of data we use MAXDB_USE_RESULT */
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if ($result = maxdb_query($link, "SELECT * FROM hotel.city", MAXDB_USE_RESULT)) {
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maxdb_free_result($result);
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}
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maxdb_close($link);
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?>
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]]>
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</programlisting>
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</example>
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<para>
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The above examples would produce the following output:
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</para>
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<screen>
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<![CDATA[
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Table mycity successfully created.
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Select returned 25 rows.
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]]>
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</screen>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>maxdb_real_query</function></member>
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<member><function>maxdb_multi_query</function></member>
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<member><function>maxdb_free_result</function></member>
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</simplelist>
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</para>
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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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