php教程：经典PHP代码

新客网 XKER.COM 2008-04-14 来源：新客网整理收藏本文

获取数组中的元素

<HTML>
<HEAD>
<TITLE>获取数组中的元素</TITLE>
</HEAD>
<?
    $monthName = array(
    /*定义$monthName[1]到$monthName[12]*/
        1=>"January", "February", "March",
        "April", "May", "June",
        "July", "August", "September",
        "October", "November", "December",
    /*定义$monthName["Jan"]到$monthName["Dec"]*/
        "Jan"=>"January", "Feb"=>"February",
        "Mar"=>"March", "Apr"=>"April",
        "May"=>"May", "Jun"=>"June",
        "Jul"=>"July", "Aug"=>"August",
        "Sep"=>"September", "Oct"=>"October",
        "Nov"=>"November", "Dec"=>"December",
    /*定义$monthName["Jan"]到$monthName["Dec"]*/
        "January"=>"January", "February"=>"February",
        "March"=>"March", "April"=>"April",
        "May"=>"May", "June"=>"June",
        "July"=>"July", "August"=>"August",
        "September"=>"September", "October"=>"October",
        "November"=>"November", "December"=>"December"
        );
    /*打印相关的元素*/
    print("Month <B>5</B> is <B>" . $monthName[5]. "</B><BR>\n");
    print("Month <B>Aug</B> is <B>" . $monthName["Aug"] . "</B><BR>\n");
    print("Month <B>June</B> is <B>" . $monthName["June"] . "</B><BR>\n");
?>
</BODY>
</HTML>

创建一个多维数组

<HTML>
<HEAD>
<TITLE>创建一个多维数组</TITLE>
</HEAD>
<?
    $Cities = array(                //二维数组array（）
        "华北地区"=>array(
            "北京市",
            "天津市",
            "石家庄"
            ),
        "西北地区"=>array(
            "西安",
            "拉萨"
            )
        );
    print("华北地区: ".$Cities["华北地区"][0]);    //打印$Cities["华北地区"][0]
?>
</BODY>
</HTML>

PHP 4.0实现表格状打印

<HTML>
<HEAD>
<TITLE>实现表格状打印</TITLE>
</HEAD>
<BODY>
<?
    /*
    ** 数据表格化
    */

    print("<TABLE bgcolor='ffccoo' BORDER=\"1\">\n"); // 表格开始


    for($Row=1; $Row <= 12; $Row ++)
    {
        print("<TR>\n"); // 开始行

        // do each column
        for($Column=1; $Column <= 12; $Column ++)
        {
            print("<TD>");//开始列
            print($Row * $Column);//表格元素乘积
            print("</TD>");
        }

        print("</TR>\n"); // 行结束

    }

    print("</TABLE>\n"); // 表格结束

?>
</BODY>
</HTML>

查看系统的一些变量

<HTML>
<HEAD>
<TITLE>查看PHP的环境变量</TITLE>
</HEAD>
<BODY>
<?
    print("你正在用文件的名字为： ");
    print(__FILE__);
    print(" <BR>\n");
    print("<hr>");
    print("你的操作系统为： ");
    print(PHP_OS);
    print("<hr>");
    print("你的php的版本为： ");
    print(PHP_VERSION)
?>
</BODY>
</HTML>

打开本地或者远程文件

<HTML>
<HEAD>
<TITLE>打开本地或者远程文件</TITLE>
</HEAD>
<BODY>
<?
    print("<H3>通过http协议打开文件</H3>\n");
    // 通过 http 协议打开文件
    if(!($myFile = fopen("d:web/web/php/test/data.txt", "r")))
    {
        print("文件不能打开");
        exit;
    }
    while(!feof($myFile))                //循环
    {
                            // 按行读取文件中的内容
        $myLine = fgetss($myFile, 255);
        print("$myLine <BR>\n");
    }
    // 关闭文件的句柄
    fclose($myFile);
?>
</BODY>
</HTML>

打开文件的几种方式比较

<HTML>
<HEAD>
<TITLE>读取文件内容</TITLE>
</HEAD>
<BODY>
<?
    // 打开文件同时打印文件的每一个字符
    if($myFile = fopen("data.txt", "r"))
    {
    while(!feof($myFile))
    {
        $myCharacter = fgetc($myFile);
        print($myCharacter);
    }
    fclose($myFile);
    }
?>
<? print("<hr>");?>
<?
    // 打开文件同时打印文件的每一行
    if($myFile = fopen("data.txt", "r"))
    {
        while(!feof($myFile))
        {
            $myLine = fgets($myFile, 255);
            print($myLine);
        }
    fclose($myFile);
    }
?>
<? print("<hr>");?>
<?
    /* 打开文件同时打印文件的每一行,
    同时去掉取回字符串中的 HTML 语言
    */
    if($myFile = fopen("data.txt", "r"))
    {
        while(!feof($myFile))
        {
            $myLine = fgetss($myFile, 255);
            print($myLine);
        }
        fclose($myFile);
    }
?>
</BODY>
</HTML>

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