/
oci-field-size.xml
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/
oci-field-size.xml
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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.oci-field-size" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>oci_field_size</refname>
<refpurpose>Returns field's size</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>int</type><methodname>oci_field_size</methodname>
<methodparam><type>resource</type><parameter>statement</parameter></methodparam>
<methodparam><type>mixed</type><parameter>field</parameter></methodparam>
</methodsynopsis>
<para>
Returns the size of a <parameter>field</parameter>.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>statement</parameter></term>
<listitem>
<para>
A valid OCI statement identifier.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>field</parameter></term>
<listitem>
<para>
Can be the field's index (1-based) or name.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns the size of a <parameter>field</parameter> in bytes, or &false; on
errors.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>oci_field_size</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
// Create the table with:
// CREATE TABLE mytab (number_col NUMBER, varchar2_col varchar2(1),
// clob_col CLOB, date_col DATE);
$conn = oci_connect("hr", "hrpwd", "localhost/XE");
if (!$conn) {
$m = oci_error();
trigger_error(htmlentities($m['message']), E_USER_ERROR);
}
$stid = oci_parse($conn, "SELECT * FROM mytab");
oci_execute($stid, OCI_DESCRIBE_ONLY); // Use OCI_DESCRIBE_ONLY if not fetching rows
echo "<table border=\"1\">\n";
echo "<tr>";
echo "<th>Name</th>";
echo "<th>Type</th>";
echo "<th>Length</th>";
echo "</tr>\n";
$ncols = oci_num_fields($stid);
for ($i = 1; $i <= $ncols; $i++) {
$column_name = oci_field_name($stid, $i);
$column_type = oci_field_type($stid, $i);
$column_size = oci_field_size($stid, $i);
echo "<tr>";
echo "<td>$column_name</td>";
echo "<td>$column_type</td>";
echo "<td>$column_size</td>";
echo "</tr>\n";
}
echo "</table>\n";
// Outputs:
// Name Type Length
// NUMBER_COL NUMBER 22
// VARCHAR2_COL VARCHAR2 1
// CLOB_COL CLOB 4000
// DATE_COL DATE 7
oci_free_statement($stid);
oci_close($conn);
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
<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>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>oci_num_fields</function></member>
<member><function>oci_field_name</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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