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初學者學習PHP開發應該掌握的幾段精華代碼

2008-12-28 07:39:25  編輯來源:互聯網  简体版  手機版  移動版  評論  字體: ||

經典循環例子

<HTML>

<HEAD>

<TITLE>經典循環例子</TITLE>

</HEAD>

<BODY>

<?

for($counter = 1; $counter <= 6; $counter++) //循環6次

{

print("<B>counter is $counter</B><BR>\n"); //打印6次

}

?>

</BODY>

</HTML>

for的高級運用

<HTML>

<HEAD>

<TITLE>for的高級運用</TITLE>

</HEAD>

<BODY>

<?

/*

** 打印必要的說明文字

*/

print("<B>距離星期一還有幾天?</B>\n");

print("<OL>\n");

for($currentDate = date("U"); //定義$currentDate時間格式

date("l", $currentDate) != "Monday"; //判斷是不是當前系統時間是Monday

$currentDate += (60 * 60 * 24)) //當前時間加上1天

{

/*

** 打印時間名稱

*/

print("<LI>" . date("l", $currentDate) . "\n");

}

print("</OL>\n");

?>

</BODY>

</HTML>

函數的簡單調用:

<HTML>

<HEAD>

<TITLE>簡單的函數</TITLE>

</HEAD>

<BODY>

<FONT SIZE=5>

<?

function printBold($inputText) //定義function printBold()

{

print("<B>" . $inputText . "</B>"); ////打印$inputText

}

print("這行沒有加重!<BR>\n"); //直接打印字符串

printBold("這行加重了!!!"); //調用function printBold()函數

print("<BR>\n");

print("這行沒有加重!<BR>\n"); //直接打印字符串

?>

</FONT>

</BODY>

</HTML>

有返回值的函數

<HTML>

<HEAD>

<TITLE>有返回值的函數</TITLE>

</HEAD>

<BODY>

<FONT SIZE=5>

<?

function makeBold($inputText) //定義function makeBold()函數

{

$boldedText = "<B>";

$boldedText .= $inputText;

$boldedText .= "</B>";

return($boldedText); //返回變量$boldedText

}

print("這行沒有加重!!!<BR>\n"); //直接打印字符串

print(makeBold("這行被加重了!!!") . "<BR>\n");//調用function makeBold()函數

print("這行沒有加重!!!<BR>\n"); //直接打印字符串

?>

</SIZE>

</BODY>

</HTML>

有默認參數的函數

<HTML>

<HEAD>

<TITLE>有默認參數的函數</TITLE>

</HEAD>

<BODY>

<FONT SIZE=5>

<?

function printColored($Text, $Color="black") //定義function函數

{

print("<FONT COLOR=\"$Color\">$Text</FONT>"); //獲取字符串的內容和顔色

}

printColored("這是黑顔色的字!"); //調用function函數

print("<BR><BR>\n");

printColored("這是藍顔色的字!", "blue"); //調用function函數

print("<BR>\n");

?>

</SIZE>

</BODY>

</HTML>

用的規算法判斷是否是整數

<HTML>

<HEAD>

<TITLE>判斷整數</TITLE>

</HEAD>

<BODY>

<?

function checkInteger($Number)

{

if($Number > 1)

{

/* 整數減1仍然是整數 */

return(checkInteger($Number-1));

}

elseif($Number < 0)

{

/* 對于一個負數,*/

/* 可以分析它的絕對值*/

return(checkInteger((-1)*$Number-1));//取絕對值,把負數按整數分析

}

else

{

if(($Number > 0) AND ($Number < 1))

{

return("當然不是");

}

else

{

/* 0 和 1 是整數 */

/* 根據相關數學定義 */

return("是的");

}

}

}

print("<B>0是整數嗎?</B>" .

checkInteger(0) . "<BR>\n");

print("<B>7是整數嗎?</B> " .

checkInteger(7) . "<BR>\n");

print("<B>3.5呢?</B>" . checkInteger(3.5) . "<BR>\n");

print("<B>那麽-5呢?</B>" . checkInteger(-5) . "<BR>\n");

print("<B>還有-9.2?</B>" . checkInteger(-9.2) . "<BR>\n");

?>

</BODY>

</HTML>

初始化數組

<HTML>

<HEAD>

<TITLE>初始化數組</TITLE>

</HEAD>

<FONT SIZE=5>

<?

$monthName = array(1=>"January", "February", "March",//初始化一個數組

"April", "May", "June", "July", "August",

"September", "October", "November", "December");

print(" 英語的「5月」是<B> $monthName[5] </B>。<BR>\n");//打印數組中的第6個元素

?>

</FONT>

</BODY>

</HTML>

獲取數組中的元素

<HTML>

<HEAD>

<TITLE>獲取數組中的元素</TITLE>

</HEAD>

<?

$monthName = array(

/*定義$monthName[1]到$monthName[12]*/

1=>"January", "February", "March",

"April", "May", "June",

"July", "August", "September",

"October", "November", "December",

/*定義$monthName["Jan"]到$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",

/*定義$monthName["Jan"]到$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"

);

/*打印相關的元素*/

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>

創建一個多維數組

<HTML>

<HEAD>

<TITLE>創建一個多維數組</TITLE>

</HEAD>

<?

$Cities = array( //二維數組array()

"華北地區"=>array(

"北京市",

"天津市",

"石家莊"

),

"西北地區"=>array(

"西安",

"拉薩"

)

);

print("華北地區: ".$Cities["華北地區"][0]); //打印$Cities["華北地區"][0]

?>

</BODY>

</HTML>

PHP 4.0實現表格狀打印

<HTML>

<HEAD>

<TITLE>實現表格狀打印</TITLE>

</HEAD>

<BODY>

<?

/*

** 數據表格化

*/

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

for($Row=1; $Row <= 12; $Row ++)

{

print("<TR>\n"); // 開始行

// do each column

for($Column=1; $Column <= 12; $Column ++)

{

print("<TD>");//開始列

print($Row * $Column);//表格元素乘積

print("</TD>");

}

print("</TR>\n"); // 行結束

}

print("</TABLE>\n"); // 表格結束

?>

</BODY>

</HTML>

查看系統的一些變量

<HTML>

<HEAD>

<TITLE>查看PHP的環境變量</TITLE>

</HEAD>

<BODY>

<?

print("你正在用文件的名字爲: ");

print(__FILE__);

print(" <BR>\n");

print("<hr>");

print("你的操作系統爲: ");

print(PHP_OS);

print("<hr>");

print("你的php的版本爲: ");

print(PHP_VERSION)

?>

</BODY>

</HTML>

打開本地或者遠程文件

<HTML>

<HEAD>

<TITLE>打開本地或者遠程文件</TITLE>

</HEAD>

<BODY>

<?

print("<H3>通過http協議打開文件</H3>\n");

// 通過 http 協議打開文件

if(!($myFile = fopen("d:web/web/php/test/data.txt", "r")))

{

print("文件不能打開");

exit;

}

while(!feof($myFile)) //循環

{

// 按行讀取文件中的內容

$myLine = fgetss($myFile, 255);

print("$myLine <BR>\n");

}

// 關閉文件的句柄

fclose($myFile);

?>

</BODY>

</HTML>

打開文件的幾種方式比較

<HTML>

<HEAD>

<TITLE>讀取文件內容</TITLE>

</HEAD>

<BODY>

<?

// 打開文件同時打印文件的每一個字符

if($myFile = fopen("data.txt", "r"))

{

while(!feof($myFile))

{

$myCharacter = fgetc($myFile);

print($myCharacter);

}

fclose($myFile);

}

?>

<? print("<hr>");?>

<?

// 打開文件同時打印文件的每一行

if($myFile = fopen("data.txt", "r"))

{

while(!feof($myFile))

{

$myLine = fgets($myFile, 255);

print($myLine);

}

fclose($myFile);

}

?>

<? print("<hr>");?>

<?

/* 打開文件同時打印文件的每一行,

同時去掉取回字符串中的 HTML 語言

*/

if($myFile = fopen("data.txt", "r"))

{

while(!feof($myFile))

{

$myLine = fgetss($myFile, 255);

print($myLine);

}

fclose($myFile);

}

?>

</BODY>

</HTML>

訪問文件常見屬性

<HTML>

<HEAD>

<TITLE>訪問文件常見屬性</TITLE>

</HEAD>

<BODY>

<BR>

<?

print("文件的所有者(UID 值):");

print(fileowner("data.txt")."<br>");

print("文件的大小:");

print(filesize("data.txt")."<br>");

print("文件的類型:");

print(filetype("data.txt")."<br>");

?>

</BODY>

</HTML>

調用文本文件內容

<HTML>

<HEAD>

<TITLE>調用文本文件內容</TITLE>

</HEAD>

<BODY>

<CENTER>

<?

// 打開文件同時,打印每一行

$myFile = file( "data.txt");

for($index = 0; $index < count($myFile); $index++)

{

print($myFile[$index]."<BR>");

}

?>

</CENTER>

</BODY>

</HTML>

創建目錄函數

<HTML>

<HEAD>

<TITLE>創建目錄函數</TITLE>

</HEAD>

<BODY>

<?

if(mkdir("myDir1", 0777)) //創建目錄的函數

{

print("目錄創建成功"); //目錄建立成功

}

else

{

print("目錄建立失敗!"); //目錄建立失敗

}

?>

</BODY>

</HTML>

浏覽目錄

<HTML>

<HEAD>

<TITLE>浏覽目錄</TITLE>

</HEAD>

<BODY>

<?

// 使用表格浏覽目錄的結構

print("<TABLE BORDER=\"1\">\n");

// 創建表格的頭

print("<TR><font color='red'>\n");

print("<TH>文件名</TH>\n");

print("<TH>文件的大小</TH>\n");

print("</font></TR>\n");

$myDirectory = opendir("."); // 建立操作目錄的句柄

// 讀出目錄中的每一個子項

while($entryName = readdir($myDirectory))

{

print("<TR>");

print("<TD>$entryName</TD>");

print("<TD ALIGN=\"right\">");

print(filesize($entryName));

print("</TD>");

print("</TR>\n");

}

closedir($myDirectory); // 關閉目錄

print("</TABLE>\n");

?>

</BODY>

</HTML>

PHP相關信息

<HTML>

<HEAD>

<TITLE>PHP相關信息</TITLE>

</HEAD>

<BODY>

<?

phpinfo();

?>

</BODY>

</HTML>

常用的數值判斷函數

<HTML>

<HEAD>

<TITLE>常用的數值判斷函數</TITLE>

</HEAD>

<BODY>

<?

//判斷數組

$colors = array("red", "blue", "green");

if(is_array($colors))

{

print("colors is an array"."<br>");

}

//雙精度數判斷

$Temperature = 15.23;

if(is_double($Temperature))

{

print("Temperature is a double"."<br>");

}

//整數判斷

$PageCount = 2234;

if(is_integer($PageCount))

{

print("$PageCount is an integer"."<br>");

}

//對象判斷

class widget

{

var $name;

var $length;

}

$thing = new widget;

if(is_object($thing))

{

print("thing is an object"."<br>");

}

//字符判斷

$Greeting = "Hello";

if(is_string($Greeting))

{

print("Greeting is a string"."<br>");

}

?>

</BODY>

</HTML>

文件上傳界面

<HTML>

<HEAD>

<TITLE>文件上傳界面</TITLE>

</HEAD>

<BODY><TABLE><CENTER>

<?

if($UploadAction){

$UploadAction=0;

$TimeLimit=60;

/*設置超時限制時間默認時間爲 30s,設置爲0時爲不限時 */

set_time_limit($TimeLimit);

If(($Upfile != "none")&&

($Upfile != ""))

{

$Filepath="d:\web\web\php\test"; //上載文件存放路徑

$FileName=$Filepath.$Upfile_name;

if($Upfile_size <1024) //上載文件大小

{$FileSize = (string)$Upfile_size . "字節";}

elseif($Upfile_size <(1024 * 1024))

{

$FileSize = number_format((double)($Upfile_size / 1024), 1) . " KB";

}

else

{

$FileSize = number_format((double)($Upfile_size/(1024*1024)),1)."MB";

}

if(!file_exists($FileName))

{

if(copy($Upfile,$FileName))

{unlink($Upfile);

echo "<br><br>\n";

echo "文件 $Upfile_name 已上載成功!";

echo "<br><br>\n";

echo "文件位置:$FileName";

echo "<br><br>\n";

echo "文件大小:$FileSize";

echo "<br><br>\n";

}

else

{echo "文件 $Upfile_name上載失敗!"; }

}

else

{echo "文件 $Upfile_name已經存在!"; }

}

else

{echo "你沒有選擇任何文件上載!"; }

set_time_limit(30); //恢複默認超時設置

}

?>

<FORM ENCTYPE = "multipart/form-data" NAME = "SubmitForm"

ACTION = "default.php" METHOD = "POST">

<INPUT TYPE = "hidden" NAME = "MAX_FILE_SIZE" VALUE ="1000000">

<INPUT TYPE = "hidden" NAME = "UploadAction" VALUE = "1">

<TR><TD><INPUT NAME = "Upfile" TYPE = "file" SIZE = "30"></TD>

</TR><TR><TD><INPUT NAME = "submit" VALUE = "提交" TYPE = "submit">

<INPUT NAME = "reset" VALUE = "重置" TYPE = "reset"></TD>

</TR></FORM></CENTER></TABLE>

</BODY>

</HTML>

經典循環例子 <HTML> <HEAD> <TITLE>經典循環例子</TITLE> </HEAD> <BODY> <? for($counter = 1; $counter <= 6; $counter++) //循環6次 { print("<B>counter is $counter</B><BR>\n"); //打印6次 } ?> </BODY> </HTML> for的高級運用 <HTML> <HEAD> <TITLE>for的高級運用</TITLE> </HEAD> <BODY> <? /* ** 打印必要的說明文字 */ print("<B>距離星期一還有幾天?</B>\n"); print("<OL>\n"); for($currentDate = date("U"); //定義$currentDate時間格式 date("l", $currentDate) != "Monday"; //判斷是不是當前系統時間是Monday $currentDate += (60 * 60 * 24)) //當前時間加上1天 { /* ** 打印時間名稱 */ print("<LI>" . date("l", $currentDate) . "\n"); } print("</OL>\n"); ?> </BODY> </HTML> 函數的簡單調用: <HTML> <HEAD> <TITLE>簡單的函數</TITLE> </HEAD> <BODY> <FONT SIZE=5> <? function printBold($inputText) //定義function printBold() { print("<B>" . $inputText . "</B>"); ////打印$inputText } print("這行沒有加重!<BR>\n"); //直接打印字符串 printBold("這行加重了!!!"); //調用function printBold()函數 print("<BR>\n"); print("這行沒有加重!<BR>\n"); //直接打印字符串 ?> </FONT> </BODY> </HTML> 有返回值的函數 <HTML> <HEAD> <TITLE>有返回值的函數</TITLE> </HEAD> <BODY> <FONT SIZE=5> <? function makeBold($inputText) //定義function makeBold()函數 { $boldedText = "<B>"; $boldedText .= $inputText; $boldedText .= "</B>"; return($boldedText); //返回變量$boldedText } print("這行沒有加重!!!<BR>\n"); //直接打印字符串 print(makeBold("這行被加重了!!!") . "<BR>\n");//調用function makeBold()函數 print("這行沒有加重!!!<BR>\n"); //直接打印字符串 ?> </SIZE> </BODY> </HTML> 有默認參數的函數 <HTML> <HEAD> <TITLE>有默認參數的函數</TITLE> </HEAD> <BODY> <FONT SIZE=5> <? function printColored($Text, $Color="black") //定義function函數 { print("<FONT COLOR=\"$Color\">$Text</FONT>"); //獲取字符串的內容和顔色 } printColored("這是黑顔色的字!"); //調用function函數 print("<BR><BR>\n"); printColored("這是藍顔色的字!", "blue"); //調用function函數 print("<BR>\n"); ?> </SIZE> </BODY> </HTML> 用的規算法判斷是否是整數 <HTML> <HEAD> <TITLE>判斷整數</TITLE> </HEAD> <BODY> <? function checkInteger($Number) { if($Number > 1) { /* 整數減1仍然是整數 */ return(checkInteger($Number-1)); } elseif($Number < 0) { /* 對于一個負數,*/ /* 可以分析它的絕對值*/ return(checkInteger((-1)*$Number-1));//取絕對值,把負數按整數分析 } else { if(($Number > 0) AND ($Number < 1)) { return("當然不是"); } else { /* 0 和 1 是整數 */ /* 根據相關數學定義 */ return("是的"); } } } print("<B>0是整數嗎?</B>" . checkInteger(0) . "<BR>\n"); print("<B>7是整數嗎?</B> " . checkInteger(7) . "<BR>\n"); print("<B>3.5呢?</B>" . checkInteger(3.5) . "<BR>\n"); print("<B>那麽-5呢?</B>" . checkInteger(-5) . "<BR>\n"); print("<B>還有-9.2?</B>" . checkInteger(-9.2) . "<BR>\n"); ?> </BODY> </HTML> 初始化數組 <HTML> <HEAD> <TITLE>初始化數組</TITLE> </HEAD> <FONT SIZE=5> <? $monthName = array(1=>"January", "February", "March",//初始化一個數組 "April", "May", "June", "July", "August", "September", "October", "November", "December"); print(" 英語的「5月」是<B> $monthName[5] </B>。<BR>\n");//打印數組中的第6個元素 ?> </FONT> </BODY> </HTML> 獲取數組中的元素 <HTML> <HEAD> <TITLE>獲取數組中的元素</TITLE> </HEAD> <? $monthName = array( /*定義$monthName[1]到$monthName[12]*/ 1=>"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December", /*定義$monthName["Jan"]到$monthName["Dec"]*/ "Jan"=>"January", "Feb"=>"February", "Mar"=>"March", "Apr"=>"April", "May"=>"May", "Jun"=>"June", "Jul"=>"July", "Aug"=>"August", "Sep"=>"September", "Oct"=>"October", "Nov"=>"November", "Dec"=>"December", /*定義$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" ); /*打印相關的元素*/ 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> 創建一個多維數組 <HTML> <HEAD> <TITLE>創建一個多維數組</TITLE> </HEAD> <? $Cities = array( //二維數組array() "華北地區"=>array( "北京市", "天津市", "石家莊" ), "西北地區"=>array( "西安", "拉薩" ) ); print("華北地區: ".$Cities["華北地區"][0]); //打印$Cities["華北地區"][0] ?> </BODY> </HTML> PHP 4.0實現表格狀打印 <HTML> <HEAD> <TITLE>實現表格狀打印</TITLE> </HEAD> <BODY> <? /* ** 數據表格化 */ print("<TABLE bgcolor='ffccoo' BORDER=\"1\">\n"); // 表格開始 for($Row=1; $Row <= 12; $Row ++) { print("<TR>\n"); // 開始行 // do each column for($Column=1; $Column <= 12; $Column ++) { print("<TD>");//開始列 print($Row * $Column);//表格元素乘積 print("</TD>"); } print("</TR>\n"); // 行結束 } print("</TABLE>\n"); // 表格結束 ?> </BODY> </HTML> 查看系統的一些變量 <HTML> <HEAD> <TITLE>查看PHP的環境變量</TITLE> </HEAD> <BODY> <? print("你正在用文件的名字爲: "); print(__FILE__); print(" <BR>\n"); print("<hr>"); print("你的操作系統爲: "); print(PHP_OS); print("<hr>"); print("你的php的版本爲: "); print(PHP_VERSION) ?> </BODY> </HTML> 打開本地或者遠程文件 <HTML> <HEAD> <TITLE>打開本地或者遠程文件</TITLE> </HEAD> <BODY> <? print("<H3>通過http協議打開文件</H3>\n"); // 通過 http 協議打開文件 if(!($myFile = fopen("d:web/web/php/test/data.txt", "r"))) { print("文件不能打開"); exit; } while(!feof($myFile)) //循環 { // 按行讀取文件中的內容 $myLine = fgetss($myFile, 255); print("$myLine <BR>\n"); } // 關閉文件的句柄 fclose($myFile); ?> </BODY> </HTML> 打開文件的幾種方式比較 <HTML> <HEAD> <TITLE>讀取文件內容</TITLE> </HEAD> <BODY> <? // 打開文件同時打印文件的每一個字符 if($myFile = fopen("data.txt", "r")) { while(!feof($myFile)) { $myCharacter = fgetc($myFile); print($myCharacter); } fclose($myFile); } ?> <? print("<hr>");?> <? // 打開文件同時打印文件的每一行 if($myFile = fopen("data.txt", "r")) { while(!feof($myFile)) { $myLine = fgets($myFile, 255); print($myLine); } fclose($myFile); } ?> <? print("<hr>");?> <? /* 打開文件同時打印文件的每一行, 同時去掉取回字符串中的 HTML 語言 */ if($myFile = fopen("data.txt", "r")) { while(!feof($myFile)) { $myLine = fgetss($myFile, 255); print($myLine); } fclose($myFile); } ?> </BODY> </HTML> 訪問文件常見屬性 <HTML> <HEAD> <TITLE>訪問文件常見屬性</TITLE> </HEAD> <BODY> <BR> <? print("文件的所有者(UID 值):"); print(fileowner("data.txt")."<br>"); print("文件的大小:"); print(filesize("data.txt")."<br>"); print("文件的類型:"); print(filetype("data.txt")."<br>"); ?> </BODY> </HTML> 調用文本文件內容 <HTML> <HEAD> <TITLE>調用文本文件內容</TITLE> </HEAD> <BODY> <CENTER> <? // 打開文件同時,打印每一行 $myFile = file( "data.txt"); for($index = 0; $index < count($myFile); $index++) { print($myFile[$index]."<BR>"); } ?> </CENTER> </BODY> </HTML> 創建目錄函數 <HTML> <HEAD> <TITLE>創建目錄函數</TITLE> </HEAD> <BODY> <? if(mkdir("myDir1", 0777)) //創建目錄的函數 { print("目錄創建成功"); //目錄建立成功 } else { print("目錄建立失敗!"); //目錄建立失敗 } ?> </BODY> </HTML> 浏覽目錄 <HTML> <HEAD> <TITLE>浏覽目錄</TITLE> </HEAD> <BODY> <? // 使用表格浏覽目錄的結構 print("<TABLE BORDER=\"1\">\n"); // 創建表格的頭 print("<TR><font color='red'>\n"); print("<TH>文件名</TH>\n"); print("<TH>文件的大小</TH>\n"); print("</font></TR>\n"); $myDirectory = opendir("."); // 建立操作目錄的句柄 // 讀出目錄中的每一個子項 while($entryName = readdir($myDirectory)) { print("<TR>"); print("<TD>$entryName</TD>"); print("<TD ALIGN=\"right\">"); print(filesize($entryName)); print("</TD>"); print("</TR>\n"); } closedir($myDirectory); // 關閉目錄 print("</TABLE>\n"); ?> </BODY> </HTML> PHP相關信息 <HTML> <HEAD> <TITLE>PHP相關信息</TITLE> </HEAD> <BODY> <? phpinfo(); ?> </BODY> </HTML> 常用的數值判斷函數 <HTML> <HEAD> <TITLE>常用的數值判斷函數</TITLE> </HEAD> <BODY> <? //判斷數組 $colors = array("red", "blue", "green"); if(is_array($colors)) { print("colors is an array"."<br>"); } //雙精度數判斷 $Temperature = 15.23; if(is_double($Temperature)) { print("Temperature is a double"."<br>"); } //整數判斷 $PageCount = 2234; if(is_integer($PageCount)) { print("$PageCount is an integer"."<br>"); } //對象判斷 class widget { var $name; var $length; } $thing = new widget; if(is_object($thing)) { print("thing is an object"."<br>"); } //字符判斷 $Greeting = "Hello"; if(is_string($Greeting)) { print("Greeting is a string"."<br>"); } ?> </BODY> </HTML> 文件上傳界面 <HTML> <HEAD> <TITLE>文件上傳界面</TITLE> </HEAD> <BODY><TABLE><CENTER> <? if($UploadAction){ $UploadAction=0; $TimeLimit=60; /*設置超時限制時間默認時間爲 30s,設置爲0時爲不限時 */ set_time_limit($TimeLimit); If(($Upfile != "none")&& ($Upfile != "")) { $Filepath="d:\web\web\php\test"; //上載文件存放路徑 $FileName=$Filepath.$Upfile_name; if($Upfile_size <1024) //上載文件大小 {$FileSize = (string)$Upfile_size . "字節";} elseif($Upfile_size <(1024 * 1024)) { $FileSize = number_format((double)($Upfile_size / 1024), 1) . " KB"; } else { $FileSize = number_format((double)($Upfile_size/(1024*1024)),1)."MB"; } if(!file_exists($FileName)) { if(copy($Upfile,$FileName)) {unlink($Upfile); echo "<br><br>\n"; echo "文件 $Upfile_name 已上載成功!"; echo "<br><br>\n"; echo "文件位置:$FileName"; echo "<br><br>\n"; echo "文件大小:$FileSize"; echo "<br><br>\n"; } else {echo "文件 $Upfile_name上載失敗!"; } } else {echo "文件 $Upfile_name已經存在!"; } } else {echo "你沒有選擇任何文件上載!"; } set_time_limit(30); //恢複默認超時設置 } ?> <FORM ENCTYPE = "multipart/form-data" NAME = "SubmitForm" ACTION = "default.php" METHOD = "POST"> <INPUT TYPE = "hidden" NAME = "MAX_FILE_SIZE" VALUE ="1000000"> <INPUT TYPE = "hidden" NAME = "UploadAction" VALUE = "1"> <TR><TD><INPUT NAME = "Upfile" TYPE = "file" SIZE = "30"></TD> </TR><TR><TD><INPUT NAME = "submit" VALUE = "提交" TYPE = "submit"> <INPUT NAME = "reset" VALUE = "重置" TYPE = "reset"></TD> </TR></FORM></CENTER></TABLE> </BODY> </HTML>
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