php-doc-en/reference/mysqli/mysqli_driver/report-mode.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<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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