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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 329269 $ -->
<refentry xml:id="mysqli-driver.report-mode" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>mysqli_driver::$report_mode</refname>
<refname>mysqli_report</refname>
<refpurpose>Enables or disables internal report functions</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<para>&style.oop;</para>
<fieldsynopsis>
<type>int</type><varname linkend="mysqli-driver.report-mode">mysqli_driver->report_mode</varname>
</fieldsynopsis>
<para>&style.procedural;</para>
<methodsynopsis>
<type>bool</type><methodname>mysqli_report</methodname>
<methodparam><type>int</type><parameter>flags</parameter></methodparam>
</methodsynopsis>
<para>
A function helpful in improving queries during code development and testing.
Depending on the flags, it reports errors from mysqli function calls or
queries that don't use an index (or use a bad index).
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>flags</parameter></term>
<listitem>
<para>
<table>
<title>Supported flags</title>
<tgroup cols="2">
<thead>
<row>
<entry>Name</entry>
<entry>Description</entry>
</row>
</thead>
<tbody>
<row>
<entry><constant>MYSQLI_REPORT_OFF</constant></entry>
<entry>Turns reporting off</entry>
</row>
<row>
<entry><constant>MYSQLI_REPORT_ERROR</constant></entry>
<entry>Report errors from mysqli function calls</entry>
</row>
<row>
<entry><constant>MYSQLI_REPORT_STRICT</constant></entry>
<entry>
Throw <classname>mysqli_sql_exception</classname> for errors
instead of warnings
</entry>
</row>
<row>
<entry><constant>MYSQLI_REPORT_INDEX</constant></entry>
<entry>Report if no index or bad index was used in a query</entry>
</row>
<row>
<entry><constant>MYSQLI_REPORT_ALL</constant></entry>
<entry>Set all options (report all)</entry>
</row>
</tbody>
</tgroup>
</table>
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&return.success;
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<para>
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>5.3.4</entry>
<entry>
Changing the reporting mode is now be per-request, rather than per-process.
</entry>
</row>
<row>
<entry>5.2.15</entry>
<entry>
Changing the reporting mode is now be per-request, rather than per-process.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<example>
<title>&style.oop;</title>
<programlisting role="php">
<![CDATA[
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
/* activate reporting */
$driver = new mysqli_driver();
$driver->report_mode = MYSQLI_REPORT_ALL;
try {
/* this query should report an error */
$result = $mysqli->query("SELECT Name FROM Nonexistingtable WHERE population > 50000");
/* this query should report a bad index */
$result = $mysqli->query("SELECT Name FROM City WHERE population > 50000");
$result->close();
$mysqli->close();
} catch (mysqli_sql_exception $e) {
echo $e->__toString();
}
?>
]]>
</programlisting>
</example>
<example>
<title>&style.procedural;</title>
<programlisting role="php">
<![CDATA[
<?php
/* activate reporting */
mysqli_report(MYSQLI_REPORT_ALL);
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
/* this query should report an error */
$result = mysqli_query("SELECT Name FROM Nonexistingtable WHERE population > 50000");
/* this query should report a bad index */
$result = mysqli_query("SELECT Name FROM City WHERE population > 50000");
mysqli_free_result($result);
mysqli_close($link);
?>
]]>
</programlisting>
</example>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>mysqli_debug</function></member>
<member><function>mysqli_dump_debug_info</function></member>
<member><classname>mysqli_sql_exception</classname></member>
<member><function>set_exception_handler</function></member>
<member><function>error_reporting</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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