php-doc-en/reference/oci8/functions/oci-num-fields.xml

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  <refentry id="function.oci-num-fields">
   <refnamediv>
    <refname>oci_num_fields</refname>
    <refpurpose>
     Returns the number of result columns in a statement
    </refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>int</type><methodname>oci_num_fields</methodname>
      <methodparam><type>resource</type><parameter>statement</parameter></methodparam>
     </methodsynopsis>
    <para>
     <function>oci_num_fields</function> returns the number of columns in the
     <parameter>statement</parameter>.
    </para>
    <para>
     <example>
      <title><function>oci_num_fields</function> example</title>
      <programlisting role="php">
<![CDATA[
<?php   
    echo "<pre>\n";   
    $conn = oci_connect("scott", "tiger");
    $stmt = oci_parse($conn, "select * from emp");
    
    oci_execute($stmt);
    
    while (oci_fetch($stmt)) {
        echo "\n";   
        $ncols = oci_num_fields($stmt);
        for ($i = 1; $i <= $ncols; $i++) {
            $column_name  = oci_field_name($stmt, $i);
            $column_value = oci_result($stmt, $i);
            echo $column_name . ': ' . $column_value . "\n";
        }
        echo "\n";
    }
    
    oci_free_statement($stmt);  
    oci_close($conn);   
    
    echo "</pre>";
?>   
]]>
      </programlisting>
     </example>
    </para>
    <para>
     <function>oci_num_fields</function> returns &false; on error.
    </para>
    <note>
     <para>
      In PHP versions before 5.0.0 you must use <function>ocinumcols</function> instead. 
      This name still can be used, it was left as alias of
      <function>oci_num_fields</function> for downwards compatability. 
      This, however, is deprecated and not recommended.
     </para>
    </note>
   </refsect1>
  </refentry>

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