for($counter = 1; $counter <= 6; $counter
) //循环6次 {
pr
("counter is $counter \n"); //打印6次
}
?>
for
高级运用 /*
** 打印必要
介绍说明文字 */
pr
("距离星期
还有几天?\n"); pr
(" \n");
for($currentDate = date("U"); //定义$currentDate时间格式
date("l", $currentDate) != "Monday"; //判断是不是当前系统时间是Monday
$currentDate
(60 * 60 * 24)) //当前时间加上1天 {
/*
** 打印时间名称
*/
pr
(" " . date("l", $currentDate) . "\n");
}
pr
(" \n");
?>
简单
: function pr
Bold($inputText) //定义function prBold
{
pr
("" . $inputText . ""); ////打印$inputText }
pr
("这行没有加重! \n"); //直接打印
串 pr
Bold("这行加重了!!!"); //function prBold pr
(" \n");
pr
("这行没有加重! \n"); //直接打印
串 ?>
有返回值
function makeBold($inputText) //定义function makeBold
{
$boldedText = "";
$boldedText .= $inputText;
$boldedText .= "";
($boldedText); //返回变量$boldedText }
pr
("这行没有加重!!! \n"); //直接打印
串 pr
(makeBold("这行被加重了!!!") . " \n");//
function makeBold pr
("这行没有加重!!! \n"); //直接打印
串 ?>
有默认参数
function pr
Colored($Text, $Color="black") //定义function {
pr
("$Text"); //获取串内容和颜色 }
pr
Colored("这是黑颜色字!"); //function pr
(" \n");
pr
Colored("这是蓝颜色字!", "blue"); //function pr
(" \n");
?>
用
规算法判断是否是整数 function checkInteger($Number)
{
($Number > 1) {
/* 整数减1仍然是整数 */
(checkInteger($Number-1)); }
($Number < 0) {
/* 对于
个负数
*/ /* 可以分析它
绝对值*/ (checkInteger((-1)*$Number-1));//取绝对值把负数按整数分析 }
{
(($Number > 0) AND ($Number < 1)) {
("当然不是"); }
{
/* 0 和 1 是整数 */
/* 根据相关数学定义 */
("是"); }
}
}
pr
("0是整数吗?" . checkInteger(0) . "
\n");
pr
("7是整数吗? " . checkInteger(7) . "
\n");
pr
("3.5呢?" . checkInteger(3.5) . " \n");
pr
("那么-5呢?" . checkInteger(-5) . " \n");
pr
("还有-9.2?" . checkInteger(-9.2) . " \n");
?>
化
$monthName =
化个 "April", "May", "June", "July", "August",
"September", "October", "November", "December");
pr
(" 英语“5月”是 $monthName[5] 
\n");//打印
中第6个元素 ?>
获取
中元素 $monthName =
/*定义$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
元素*/ pr
("Month 5 is " . $monthName[5]. " \n");
pr
("Month Aug is " . $monthName["Aug"] . " \n");
pr
("Month June is " . $monthName["June"] . " \n");
?>
创建
个多维 $Cities =
"华北地区"=>
"北京市",
"天津市",
"石家庄"
),
"西北地区"=>
"西安",
"拉萨"
)
);
pr
("华北地区: ".$Cities["华北地区"][0]); //打印$Cities["华北地区"][0] ?>
PHP 4.0实现表格状打印
/*
** 数据表格化
*/
pr
("\n"); // 表格开始 for($Row=1; $Row <= 12; $Row
) {
pr
("\n"); // 开始行 // do each column
for($Column=1; $Column <= 12; $Column
) {
pr
("");//开始列 pr
($Row * $Column);//表格元素乘积 pr
(""); }
pr
(" \n"); // 行结束
}
pr
("\n"); // 表格结束 ?>
查看系统
些变量 pr
("你正在用文件名字为: "); pr
(__FILE__); pr
(" \n");
pr
(" ");
pr
("你操作系统为: "); pr
(PHP_OS); pr
(" ");
pr
("你php版本为: "); pr
(PHP_VERSION) ?>
打开本地或者远程文件
pr
(" 通过http协议打开文件
\n");
// 通过 http 协议打开文件
(!($myFile = fopen("d:web/web/php/test/data.txt", "r"))) {
pr
("文件不能打开"); exit;
}
while(!feof($myFile)) //循环
{
// 按行读取文件中
内容 $myLine = fgetss($myFile, 255);
pr
("$myLine \n");
}
// 关闭文件
句柄 fclose($myFile);
?>
打开文件
几种方式比较 // 打开文件同时打印文件
每个 ($myFile = fopen("data.txt", "r")) {
while(!feof($myFile))
{
$myCharacter = fgetc($myFile);
pr
($myCharacter); }
fclose($myFile);
}
?>
");?>
// 打开文件同时打印文件
每行 ($myFile = fopen("data.txt", "r")) {
while(!feof($myFile))
{
$myLine = fgets($myFile, 255);
pr
($myLine); }
fclose($myFile);
}
?>
");?>
/* 打开文件同时打印文件
每行, 同时去掉取回
串中 HTML 语言 */
($myFile = fopen("data.txt", "r")) {
while(!feof($myFile))
{
$myLine = fgetss($myFile, 255);
pr
($myLine); }
fclose($myFile);
}
?>
访问文件常见属性
pr
("文件所有者(UID 值):"); pr
(fileowner("data.txt")." ");
pr
("文件大小:"); pr
(filesize("data.txt")." ");
pr
("文件类型:"); pr
(filetype("data.txt")." ");
?>
文本文件内容 // 打开文件同时
打印每行 $myFile = file( "data.txt");
for($index = 0; $index < count($myFile); $index
) {
pr
($myFile[$index]." ");
}
?>
创建目录
(mkdir("myDir1", 0777)) //创建目录 {
pr
("目录创建成功"); //目录建立成功 }
{
pr
("目录建立失败!"); //目录建立失败
}
?>
浏览目录
// 使用表格浏览目录
结构 pr
("\n"); // 创建表格
头 pr
("\n"); pr
("文件名\n"); pr
("文件大小\n"); pr
(" \n");
$myDirectory = opendir("."); // 建立操作目录
句柄 // 读出目录中
每个子项 while($entryName = readdir($myDirectory))
{
pr
(""); pr
("$entryName"); pr
(""); pr
(filesize($entryName)); pr
(""); pr
(" \n");
}
closedir($myDirectory); // 关闭目录
pr
("\n"); ?>
PHP相关信息
phpinfo
; ?>
常用
数值判断 //判断
$colors =
(is_{
pr
("colors is an ");
}
//双精度数判断
$Temperature = 15.23;
(is_double($Temperature)) {
pr
("Temperature is a double"." ");
}
//整数判断
$PageCount = 2234;
(is_eger($PageCount)) {
pr
("$PageCount is an eger"." ");
}
//对象判断
widget {
var $name;
var $length;
}
$thing =
widget; (is_object($thing)) {
pr
("thing is an object"." ");
}
//
判断 $Greeting = "Hello";
(is_
($Greeting)) {
pr
("Greeting is a "." ");
}
?>
文件上传界面
($UploadAction){ $UploadAction=0;
$TimeLimit=60;
/*设置超时限制时间默认时间为 30s
设置为0时为不限时 */ 
_time_limit($TimeLimit); If(($Upfile != "none")&&
($Upfile != ""))
{
$Filepath="d:\web\web\php\test"; //上载文件存放路径
$FileName=$Filepath.$Upfile_name;
($Upfile_size <1024) //上载文件大小 {$FileSize = (
)$Upfile_size . "字节";} ($Upfile_size <(1024 * 1024)) {
$FileSize = number_format((double)($Upfile_size / 1024), 1) . " KB";
}
{
$FileSize = number_format((double)($Upfile_size/(1024*1024)),1)."MB";
}
(!file_exists($FileName)) {
(copy($Upfile,$FileName)) {unlink($Upfile);
echo "
\n";
echo "文件 $Upfile_name 已上载成功!";
echo "
\n";
echo "文件位置:$FileName";
echo "
\n";
echo "文件大小:$FileSize";
echo "
\n";
}
{echo "文件 $Upfile_name上载失败!"; }
}
{echo "文件 $Upfile_name已经存在!"; }
}
{echo "你没有选择任何文件上载!"; }
_time_limit(30); //恢复默认超时设置 }
?>
ACTION = "default.php" METHOD = "POST">
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