php-doc-en/reference/mysqli/functions/mysqli-info.xml

<?xml version="1.0" encoding="iso-8859-1"?>
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  <refentry id="function.mysqli-info">
   <refnamediv>
    <refname>mysqli_info</refname>
    <refname>mysqli->info</refname>
    <refpurpose>Retrieves information about the most recently executed query</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <para>Procedural style:</para>
     <methodsynopsis>
      <type>string</type><methodname>mysqli_info</methodname>
      <methodparam><type>object</type><parameter>link</parameter></methodparam>
     </methodsynopsis>
     <para>Object oriented style (property)</para>
     <classsynopsis>
      <ooclass><classname>mysqli</classname></ooclass>
       <fieldsynopsis><type>string</type><varname>info</varname></fieldsynopsis>
     </classsynopsis>
    <para>
     The <function>mysqli_info</function> function returns a string providing
     information about the last query executed. The nature of this string is
     provided below:
    </para>
    <para>
    <table>
     <title>Possible mysqli_info return values</title>
     <tgroup cols='2'>
      <thead>
       <row>
        <entry>Query type</entry>
        <entry>Example result string</entry>
       </row>
      </thead>
      <tbody>
       <row>
        <entry>INSERT INTO...SELECT...</entry>
        <entry>Records: 100 Duplicates: 0 Warnings: 0</entry>
       </row>
       <row>
        <entry>INSERT INTO...VALUES (...),(...),(...)</entry>
        <entry>Records: 3 Duplicates: 0 Warnings: 0</entry>
       </row>
       <row>
        <entry>LOAD DATA INFILE ...</entry>
        <entry>Records: 1 Deleted: 0 Skipped: 0 Warnings: 0</entry>
       </row>
       <row>
        <entry>ALTER TABLE ...</entry>
        <entry>Records: 3 Duplicates: 0 Warnings: 0</entry>
       </row>
       <row>
        <entry>UPDATE ...</entry>
        <entry>Rows matched: 40 Changed: 40 Warnings: 0</entry>
       </row>
      </tbody>
     </tgroup>
    </table>
    </para>
    <note>
     <para>
      Queries which do not fall into one of the above formats are not supported.
      In these situations, <function>mysqli_info</function> will return an empty string. 
     </para>
    </note>
   </refsect1>
   <refsect1>
    &reftitle.returnvalues;
    <para>
     A character string representing additional information about the most recently executed query. 
    </para>
   </refsect1>
   <refsect1>
    &reftitle.seealso;
    <para>
     <function>mysqli_affected_rows</function>,
     <function>mysqli_warning_count</function>,
     <function>mysqli_num_rows</function>
    </para>
   </refsect1>
  </refentry>

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