php-doc-en/reference/oci8/functions/oci-field-size.xml

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  <refentry id="function.oci-field-size">
   <refnamediv>
    <refname>oci_field_size</refname>
    <refpurpose>Returns field's size</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>int</type><methodname>oci_field_size</methodname>
      <methodparam><type>resource</type><parameter>stmt</parameter></methodparam>
      <methodparam><type>mixed</type><parameter>field</parameter></methodparam>
     </methodsynopsis>
    <para>
     <function>oci_field_size</function> returns the size of a field in
     bytes. Value of <parameter>field</parameter> parameter can be the field's
     index (1-based) or it's name.
    </para>
    <para>
     <example>
      <title><function>oci_field_size</function>example</title>
      <programlisting role="php">
<![CDATA[
<?php   
    $conn = oci_connect("scott", "tiger");
    $stmt = oci_parse($conn, "SELECT * FROM emp");
    oci_execute($stmt);
    
    echo "<table border=\"1\">";
    echo "<tr>";
    echo "<th>Name</th>";
    echo "<th>Type</th>";
    echo "<th>Length</th>";
    echo "</tr>";
   
    $ncols = oci_num_fields($stmt);
   
    for ($i = 1; $i <= $ncols; $i++) {
        $column_name  = oci_field_name($stmt, $i);
        $column_type  = oci_field_type($stmt, $i);
        $column_size  = oci_field_size($stmt, $i);
        echo "<tr>";
        echo "<td>$column_name</td>";
        echo "<td>$column_type</td>";
        echo "<td>$column_size</td>";
        echo "</tr>";
    }
       
    echo "</table>";
   
    oci_free_statement($stmt);  
    oci_close($conn);   
?>   
]]>
      </programlisting>
     </example>
    </para>
    <note>
     <para>
      In PHP versions before 5.0.0 you must use <function>ocicolumnsize</function> instead. 
      This name still can be used, it was left as alias of
      <function>oci_field_size</function> for downwards compatability. 
      This, however, is deprecated and not recommended.
     </para>
    </note>
    <simpara>
     See also <function>oci_num_fields</function> and
     <function>oci_field_name</function>.
    </simpara>
   </refsect1>
  </refentry>

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