<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >oci_field_size</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="PHP 手册" HREF="index.html"><LINK REL="UP" TITLE="Oracle 函数" HREF="ref.oci8.html"><LINK REL="PREVIOUS" TITLE="oci_field_scale" HREF="function.oci-field-scale.html"><LINK REL="NEXT" TITLE="oci_field_type_raw" HREF="function.oci-field-type-raw.html"><META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=UTF-8"></HEAD ><BODY CLASS="refentry" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >PHP 手册</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.oci-field-scale.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.oci-field-type-raw.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.oci-field-size" ></A >oci_field_size</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN157730" ></A ><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。 </P ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN157748" ></A ><P ><B >例 1. <B CLASS="function" >oci_field_size()</B >例子</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><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 ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><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 >。 </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="function.oci-field-scale.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >起始页</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.oci-field-type-raw.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >oci_field_scale</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.oci8.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >oci_field_type_raw</TD ></TR ></TABLE ></DIV ></BODY ></HTML >