<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >array_count_values</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="Array 数组函数" HREF="ref.array.html"><LINK REL="PREVIOUS" TITLE="array_combine" HREF="function.array-combine.html"><LINK REL="NEXT" TITLE="array_diff_assoc" HREF="function.array-diff-assoc.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.array-combine.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.array-diff-assoc.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.array-count-values" ></A >array_count_values</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN10633" ></A ><P > (PHP 4, PHP 5)</P >array_count_values -- 统计数组中所有的值出现的次数</DIV ><DIV CLASS="refsect1" ><A NAME="AEN10636" ></A ><H2 >说明</H2 >array <B CLASS="methodname" >array_count_values</B > ( array input )<BR ></BR ><P > <B CLASS="function" >array_count_values()</B > 返回一个数组,该数组用 <CODE CLASS="parameter" >input</CODE > 数组中的值作为键名,该值在 <CODE CLASS="parameter" >input</CODE > 数组中出现的次数作为值。 </P ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN10649" ></A ><P ><B >例 1. <B CLASS="function" >array_count_values()</B > 例子</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />$array </font><font color="#007700">= array(</font><font color="#0000BB">1</font><font color="#007700">, </font><font color="#DD0000">"hello"</font><font color="#007700">, </font><font color="#0000BB">1</font><font color="#007700">, </font><font color="#DD0000">"world"</font><font color="#007700">, </font><font color="#DD0000">"hello"</font><font color="#007700">);<br /></font><font color="#0000BB">print_r</font><font color="#007700">(</font><font color="#0000BB">array_count_values </font><font color="#007700">(</font><font color="#0000BB">$array</font><font color="#007700">));<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ><P >上例将输出:</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="screen" >Array ( [1] => 2 [hello] => 2 [world] => 1 )</PRE ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><P > 参见 <A HREF="function.count.html" ><B CLASS="function" >count()</B ></A >,<A HREF="function.array-unique.html" ><B CLASS="function" >array_unique()</B ></A >,<A HREF="function.array-values.html" ><B CLASS="function" >array_values()</B ></A > 和 <A HREF="function.count-chars.html" ><B CLASS="function" >count_chars()</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.array-combine.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.array-diff-assoc.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >array_combine</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.array.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >array_diff_assoc</TD ></TR ></TABLE ></DIV ></BODY ></HTML >