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>oci_field_size</H1
><DIV
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><A
NAME="AEN157730"
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><P
> (PHP 5)</P
>oci_field_size -- 返回字段大小</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN157733"
></A
><H2
>说明</H2
>int <B
CLASS="methodname"
>oci_field_size</B
> ( resource stmt, mixed field )<BR
></BR
><P
> <B
CLASS="function"
>oci_field_size()</B
>
以字节为单位返回字段的大小。<CODE
CLASS="parameter"
>field</CODE
>
参数的值可以是字段的索引（从 1 开始）或者字段名。
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><B
>例 1. <B
CLASS="function"
>oci_field_size()</B
>例子</B
></P
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><code><font color="#000000">
<font color="#0000BB"><?php<br /> $conn </font><font color="#007700">= </font><font color="#0000BB">oci_connect</font><font color="#007700">(</font><font color="#DD0000">"scott"</font><font color="#007700">, </font><font color="#DD0000">"tiger"</font><font color="#007700">);<br /> </font><font color="#0000BB">$stmt </font><font color="#007700">= </font><font color="#0000BB">oci_parse</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">, </font><font color="#DD0000">"SELECT * FROM emp"</font><font color="#007700">);<br /> </font><font color="#0000BB">oci_execute</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">);<br /><br /> echo </font><font color="#DD0000">"<table border=\"1\">"</font><font color="#007700">;<br /> echo </font><font color="#DD0000">"<tr>"</font><font color="#007700">;<br /> echo </font><font color="#DD0000">"<th>Name</th>"</font><font color="#007700">;<br /> echo </font><font color="#DD0000">"<th>Type</th>"</font><font color="#007700">;<br /> echo </font><font color="#DD0000">"<th>Length</th>"</font><font color="#007700">;<br /> echo </font><font color="#DD0000">"</tr>"</font><font color="#007700">;<br /><br /> </font><font color="#0000BB">$ncols </font><font color="#007700">= </font><font color="#0000BB">oci_num_fields</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">);<br /><br /> for (</font><font color="#0000BB">$i </font><font color="#007700">= </font><font color="#0000BB">1</font><font color="#007700">; </font><font color="#0000BB">$i </font><font color="#007700"><= </font><font color="#0000BB">$ncols</font><font color="#007700">; </font><font color="#0000BB">$i</font><font color="#007700">++) {<br /> </font><font color="#0000BB">$column_name </font><font color="#007700">= </font><font color="#0000BB">oci_field_name</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">, </font><font color="#0000BB">$i</font><font color="#007700">);<br /> </font><font color="#0000BB">$column_type </font><font color="#007700">= </font><font color="#0000BB">oci_field_type</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">, </font><font color="#0000BB">$i</font><font color="#007700">);<br /> </font><font color="#0000BB">$column_size </font><font color="#007700">= </font><font color="#0000BB">oci_field_size</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">, </font><font color="#0000BB">$i</font><font color="#007700">);<br /> echo </font><font color="#DD0000">"<tr>"</font><font color="#007700">;<br /> echo </font><font color="#DD0000">"<td>$column_name</td>"</font><font color="#007700">;<br /> echo </font><font color="#DD0000">"<td>$column_type</td>"</font><font color="#007700">;<br /> echo </font><font color="#DD0000">"<td>$column_size</td>"</font><font color="#007700">;<br /> echo </font><font color="#DD0000">"</tr>"</font><font color="#007700">;<br /> }<br /><br /> echo </font><font color="#DD0000">"</table>"</font><font color="#007700">;<br /><br /> </font><font color="#0000BB">oci_free_statement</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">);<br /> </font><font color="#0000BB">oci_close</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">);<br /></font><font color="#0000BB">?></font>
</font>
</code></TD
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>
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><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>注意: </B
>
在 PHP 5.0.0 之前的版本必须使用 <A
HREF="function.ocicolumnsize.html"
><B
CLASS="function"
>ocicolumnsize()</B
></A
>
替代本函数。该函数名仍然可用，为向下兼容作为
<B
CLASS="function"
>oci_field_size()</B
> 的别名。不过其已被废弃，不推荐使用。
</P
></BLOCKQUOTE
></DIV
><P
> 参见 <A
HREF="function.oci-num-fields.html"
><B
CLASS="function"
>oci_num_fields()</B
></A
> 和
<A
HREF="function.oci-field-name.html"
><B
CLASS="function"
>oci_field_name()</B
></A
>。
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