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php-manual-ro-20051028-1.noarch.rpm

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><H1
><A
NAME="function.dbx-query"
></A
>dbx_query</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN18906"
></A
><P
>    (PHP 4 &#62;= 4.0.6, PHP 5)</P
>dbx_query&nbsp;--&nbsp;Send a query and fetch all results (if any)</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN18909"
></A
><H2
>Description</H2
>object <B
CLASS="methodname"
>dbx_query</B
> ( object link_identifier, string sql_statement [, int flags])<BR
></BR
><P
>&#13;     <B
CLASS="function"
>dbx_query()</B
> returns an object or <VAR
CLASS="literal"
>1</VAR
> 
     on success, and <VAR
CLASS="literal"
>0</VAR
> on failure. The result object is 
     returned only if the query given in <VAR
CLASS="parameter"
>sql_statement</VAR
>
     produces a result set (i.e. a SELECT query, even if the result set is
     empty). 
    </P
><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN18928"
></A
><P
><B
>Exemplu 1. How to handle the returned value</B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$link&nbsp;&nbsp;&nbsp;</font><font color="#007700">= </font><font color="#0000BB">dbx_connect</font><font color="#007700">(</font><font color="#0000BB">DBX_ODBC</font><font color="#007700">, </font><font color="#DD0000">""</font><font color="#007700">, </font><font color="#DD0000">"db"</font><font color="#007700">, </font><font color="#DD0000">"username"</font><font color="#007700">, </font><font color="#DD0000">"password"</font><font color="#007700">)<br />&nbsp;&nbsp;&nbsp;&nbsp;or die(</font><font color="#DD0000">"Could not connect"</font><font color="#007700">);<br /><br /></font><font color="#0000BB">$result </font><font color="#007700">= </font><font color="#0000BB">dbx_query</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">, </font><font color="#DD0000">'SELECT id, parentid, description FROM table'</font><font color="#007700">);<br /><br />if (</font><font color="#0000BB">is_object</font><font color="#007700">(</font><font color="#0000BB">$result</font><font color="#007700">) ) {<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// ... do some stuff here, see detailed examples below ...<br />&nbsp;&nbsp;&nbsp;&nbsp;// first, print out field names and types <br />&nbsp;&nbsp;&nbsp;&nbsp;// then, draw a table filled with the returned field values<br /></font><font color="#007700">} else {<br />&nbsp;&nbsp;&nbsp;&nbsp;exit(</font><font color="#DD0000">"Query failed"</font><font color="#007700">);<br />}<br /><br /></font><font color="#0000BB">dbx_close</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">);<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
><P
>&#13;     The <VAR
CLASS="parameter"
>flags</VAR
> parameter is used to control the amount of
     information that is returned. It may be any combination of the following 
     constants with the bitwise OR operator (|). The DBX_COLNAMES_* flags 
     override the dbx.colnames_case setting from <TT
CLASS="filename"
>php.ini</TT
>.
     <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><TT
CLASS="constant"
><B
>DBX_RESULT_INDEX</B
></TT
></DT
><DD
><P
>&#13;         It is <SPAN
CLASS="emphasis"
><I
CLASS="emphasis"
>always</I
></SPAN
> set, that is, the returned object 
         has a <SPAN
CLASS="property"
>data</SPAN
> property which is a 2 dimensional
         array indexed numerically. For example, in the expression 
         <VAR
CLASS="literal"
>data[2][3]</VAR
> <VAR
CLASS="literal"
>2</VAR
> stands for the row
         (or record) number and <VAR
CLASS="literal"
>3</VAR
> stands for the column 
         (or field) number. The first row and column are indexed at 0.
        </P
><P
>&#13;         If <TT
CLASS="constant"
><B
>DBX_RESULT_ASSOC</B
></TT
> is also specified, the 
         returning object contains the information related to 
         <TT
CLASS="constant"
><B
>DBX_RESULT_INFO</B
></TT
> too, even if it was not specified. 
        </P
></DD
><DT
><TT
CLASS="constant"
><B
>DBX_RESULT_INFO</B
></TT
></DT
><DD
><P
>&#13;         It provides info about columns, such as field names and field types.
        </P
></DD
><DT
><TT
CLASS="constant"
><B
>DBX_RESULT_ASSOC</B
></TT
></DT
><DD
><P
>&#13;         It effects that the field values can be accessed with the respective 
         column names used as keys to the returned object's 
         <SPAN
CLASS="property"
>data</SPAN
> property.
        </P
><P
>&#13;         Associated results are actually references to the numerically indexed 
         data, so modifying <VAR
CLASS="literal"
>data[0][0]</VAR
> causes that
         <VAR
CLASS="literal"
>data[0]['field_name_for_first_column']</VAR
> is modified
         as well.
        </P
></DD
><DT
><TT
CLASS="constant"
><B
>DBX_RESULT_UNBUFFERED</B
></TT
> (CVS only)</DT
><DD
><P
>&#13;         This flag will not create the <SPAN
CLASS="property"
>data</SPAN
> property, and 
         the <SPAN
CLASS="property"
>rows</SPAN
> property will initially be 0. Use this 
         flag for large datasets, and use <A
HREF="function.dbx-fetch-row.html"
><B
CLASS="function"
>dbx_fetch_row()</B
></A
> to
         retrieve the results row by row.
        </P
><P
>&#13;         The <A
HREF="function.dbx-fetch-row.html"
><B
CLASS="function"
>dbx_fetch_row()</B
></A
> function will return rows that
         are conformant to the flags set with this query. Incidentally, it will
         also update the <SPAN
CLASS="property"
>rows</SPAN
> each time it is called.
        </P
></DD
><DT
><TT
CLASS="constant"
><B
>DBX_COLNAMES_UNCHANGED</B
></TT
> (available from PHP 4.3.0)</DT
><DD
><P
>&#13;         The case of the returned column names will not be changed.
        </P
></DD
><DT
><TT
CLASS="constant"
><B
>DBX_COLNAMES_UPPERCASE</B
></TT
> (available from PHP 4.3.0)</DT
><DD
><P
>&#13;         The case of the returned column names will be changed to 
         uppercase.
        </P
></DD
><DT
><TT
CLASS="constant"
><B
>DBX_COLNAMES_LOWERCASE</B
></TT
> (available from PHP 4.3.0)</DT
><DD
><P
>&#13;         The case of the returned column names will be changed to 
         lowercase.
        </P
></DD
></DL
></DIV
>
     Note that <TT
CLASS="constant"
><B
>DBX_RESULT_INDEX</B
></TT
> is always used, regardless 
     of the actual value of <VAR
CLASS="parameter"
>flags</VAR
> parameter. This means 
     that only the following combinations are effective:
     <P
></P
><UL
><LI
><P
>&#13;        <TT
CLASS="constant"
><B
>DBX_RESULT_INDEX</B
></TT
>
       </P
></LI
><LI
><P
>&#13;        <TT
CLASS="constant"
><B
>DBX_RESULT_INDEX</B
></TT
> |
        <TT
CLASS="constant"
><B
>DBX_RESULT_INFO</B
></TT
>
       </P
></LI
><LI
><P
>&#13;        <TT
CLASS="constant"
><B
>DBX_RESULT_INDEX</B
></TT
> |
        <TT
CLASS="constant"
><B
>DBX_RESULT_INFO</B
></TT
> |
        <TT
CLASS="constant"
><B
>DBX_RESULT_ASSOC</B
></TT
> - this is the default, if 
        <VAR
CLASS="parameter"
>flags</VAR
> is not specified.
       </P
></LI
></UL
>
    </P
><P
>&#13;     The returned <VAR
CLASS="varname"
>object</VAR
> has four or five
     properties depending on <VAR
CLASS="parameter"
>flags</VAR
>:
     <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><SPAN
CLASS="property"
>handle</SPAN
></DT
><DD
><P
>&#13;         It is a valid handle for the connected database, and as such it can be
         used in module specific functions (if required).
         <DIV
CLASS="informalexample"
><P
></P
><A
NAME="AEN19013"
></A
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$result </font><font color="#007700">= </font><font color="#0000BB">dbx_query</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">, </font><font color="#DD0000">"SELECT id FROM table"</font><font color="#007700">);<br /></font><font color="#0000BB">mysql_field_len</font><font color="#007700">(</font><font color="#0000BB">$result</font><font color="#007700">-&gt;</font><font color="#0000BB">handle</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">);<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
></TR
></TABLE
><P
></P
></DIV
>
        </P
></DD
><DT
><SPAN
CLASS="property"
>cols</SPAN
> and <SPAN
CLASS="property"
>rows</SPAN
></DT
><DD
><P
>&#13;         These contain the number of columns (or fields) and rows (or records)
         respectively.
         <DIV
CLASS="informalexample"
><P
></P
><A
NAME="AEN19021"
></A
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$result </font><font color="#007700">= </font><font color="#0000BB">dbx_query</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">, </font><font color="#DD0000">'SELECT id FROM table'</font><font color="#007700">);<br />echo </font><font color="#0000BB">$result</font><font color="#007700">-&gt;</font><font color="#0000BB">rows</font><font color="#007700">; </font><font color="#FF8000">// number of records<br /></font><font color="#007700">echo </font><font color="#0000BB">$result</font><font color="#007700">-&gt;</font><font color="#0000BB">cols</font><font color="#007700">; </font><font color="#FF8000">// number of fields <br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
></TR
></TABLE
><P
></P
></DIV
>
        </P
></DD
><DT
><SPAN
CLASS="property"
>info</SPAN
> (optional)</DT
><DD
><P
>&#13;         It is returned only if either <TT
CLASS="constant"
><B
>DBX_RESULT_INFO</B
></TT
> or
         <TT
CLASS="constant"
><B
>DBX_RESULT_ASSOC</B
></TT
> is specified in the
         <VAR
CLASS="parameter"
>flags</VAR
> parameter. It is a 2 dimensional array,
         that has two named rows (<VAR
CLASS="literal"
>name</VAR
> and 
         <VAR
CLASS="literal"
>type</VAR
>) to retrieve column information.
        </P
><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN19033"
></A
><P
><B
>Exemplu 2. lists each field's name and type</B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$result </font><font color="#007700">= </font><font color="#0000BB">dbx_query</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">, </font><font color="#DD0000">'SELECT id FROM table'</font><font color="#007700">,<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">DBX_RESULT_INDEX </font><font color="#007700">| </font><font color="#0000BB">DBX_RESULT_INFO</font><font color="#007700">);<br /><br />for (</font><font color="#0000BB">$i </font><font color="#007700">= </font><font color="#0000BB">0</font><font color="#007700">; </font><font color="#0000BB">$i </font><font color="#007700">&lt; </font><font color="#0000BB">$result</font><font color="#007700">-&gt;</font><font color="#0000BB">cols</font><font color="#007700">; </font><font color="#0000BB">$i</font><font color="#007700">++ ) {<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#0000BB">$result</font><font color="#007700">-&gt;</font><font color="#0000BB">info</font><font color="#007700">[</font><font color="#DD0000">'name'</font><font color="#007700">][</font><font color="#0000BB">$i</font><font color="#007700">] . </font><font color="#DD0000">"\n"</font><font color="#007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#0000BB">$result</font><font color="#007700">-&gt;</font><font color="#0000BB">info</font><font color="#007700">[</font><font color="#DD0000">'type'</font><font color="#007700">][</font><font color="#0000BB">$i</font><font color="#007700">] . </font><font color="#DD0000">"\n"</font><font color="#007700">;&nbsp;&nbsp;<br />}<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
></DD
><DT
><SPAN
CLASS="property"
>data</SPAN
></DT
><DD
><P
>&#13;         This property contains the actual resulting data, possibly associated 
         with column names as well depending on <VAR
CLASS="parameter"
>flags</VAR
>.
         If <TT
CLASS="constant"
><B
>DBX_RESULT_ASSOC</B
></TT
> is set, it is possible to use
         <VAR
CLASS="literal"
>$result-&#62;data[2]["field_name"]</VAR
>.
        </P
><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN19044"
></A
><P
><B
>Exemplu 3. outputs the content of data property into HTML table</B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$result </font><font color="#007700">= </font><font color="#0000BB">dbx_query</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">, </font><font color="#DD0000">'SELECT id, parentid, description FROM table'</font><font color="#007700">);<br /><br />echo </font><font color="#DD0000">"&lt;table&gt;\n"</font><font color="#007700">;<br />foreach (</font><font color="#0000BB">$result</font><font color="#007700">-&gt;</font><font color="#0000BB">data </font><font color="#007700">as </font><font color="#0000BB">$row</font><font color="#007700">) {<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">"&lt;tr&gt;\n"</font><font color="#007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;foreach (</font><font color="#0000BB">$row </font><font color="#007700">as </font><font color="#0000BB">$field</font><font color="#007700">) {<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">"&lt;td&gt;$field&lt;/td&gt;"</font><font color="#007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">"&lt;/tr&gt;\n"</font><font color="#007700">;<br />}<br />echo </font><font color="#DD0000">"&lt;/table&gt;\n"</font><font color="#007700">;<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN19047"
></A
><P
><B
>Exemplu 4. How to handle UNBUFFERED queries</B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /><br />$result </font><font color="#007700">= </font><font color="#0000BB">dbx_query </font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">, </font><font color="#DD0000">'SELECT id, parentid, description FROM table'</font><font color="#007700">, </font><font color="#0000BB">DBX_RESULT_UNBUFFERED</font><font color="#007700">);<br /><br />echo </font><font color="#DD0000">"&lt;table&gt;\n"</font><font color="#007700">;<br />while (</font><font color="#0000BB">$row </font><font color="#007700">= </font><font color="#0000BB">dbx_fetch_row</font><font color="#007700">(</font><font color="#0000BB">$result</font><font color="#007700">)) {<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">"&lt;tr&gt;\n"</font><font color="#007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;foreach (</font><font color="#0000BB">$row </font><font color="#007700">as </font><font color="#0000BB">$field</font><font color="#007700">) {<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">"&lt;td&gt;$field&lt;/td&gt;"</font><font color="#007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">"&lt;/tr&gt;\n"</font><font color="#007700">;<br />}<br />echo </font><font color="#DD0000">"&lt;/table&gt;\n"</font><font color="#007700">;<br /><br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
></DD
></DL
></DIV
>
    </P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Not&#227;: </B
>
      Always refer to the module-specific documentation as well.
     </P
><P
>&#13;      Column names for queries on an Oracle database are returned
      in lowercase.
     </P
></BLOCKQUOTE
></DIV
><P
>&#13;     See also <A
HREF="function.dbx-escape-string.html"
><B
CLASS="function"
>dbx_escape_string()</B
></A
>, 
     <A
HREF="function.dbx-fetch-row.html"
><B
CLASS="function"
>dbx_fetch_row()</B
></A
> and 
     <A
HREF="function.dbx-connect.html"
><B
CLASS="function"
>dbx_connect()</B
></A
>.
    </P
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
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><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="function.dbx-fetch-row.html"
ACCESSKEY="P"
>Înapoi</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="index.html"
ACCESSKEY="H"
>Acas&#227;</A
></TD
><TD
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ALIGN="right"
VALIGN="top"
><A
HREF="function.dbx-sort.html"
ACCESSKEY="N"
>Înainte</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>dbx_fetch_row</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="ref.dbx.html"
ACCESSKEY="U"
>Sus</A
></TD
><TD
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>dbx_sort</TD
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>

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