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我的PHP练习

WBOY
WBOY原创
2016-06-23 14:31:48906浏览

代码如下:

附近下载:http://files.cnblogs.com/great/MyPHPTest.rar

Hello.php

<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>我的第一个PHP程序</title><style type="text/css">div { border:solid 1px red; margin: 10px 0px 10px 0px; padding: 5px;  }div.innerDiv { border-color:green; }</style></head><body><?php/*php 变量名区分大小写,而 类名、方法名不区分大小写*/function customError($error_level,$error_message /* 可选参数如下:error_file, error_line, error_context */){ 	echo "<b>发生错误:</b> [$error_level] $error_message<br />";	echo "即将停止脚步执行...";	die();}set_error_handler("customError"  , E_USER_WARNING);/*?E_USER_ERROR - 致命的用户生成的 run-time 错误。错误无法恢复。脚本执行被中断。?E_USER_WARNING - 非致命的用户生成的 run-time 警告。脚本执行不被中断。?E_USER_NOTICE - 默认。用户生成的 run-time 通知。脚本发现了可能的错误,也有可能在脚本运行正常时发生。*/$testNum=0;if ($testNum>1){trigger_error("参数必须小于1。");}echo "<br/>";function checkNum($num){	if($num > 1)	{		throw new Exception("值必须小于1");	}	return true;}try{	checkNum(0);	echo "您传入的数字参数正确!";}catch(Exception $e){	echo "调用checkNum()方法时,异常被捕获,异常信息:".$e->GETMessage();}class MyCustomException extends Exception{	public function errorMessage()	{		$errorMsg = "<span style=\"color:red;\">“错误行号:".$this->getLine().",在".$this->getFile().":<b>".$this->getMessage()."</b>”</span>";		return $errorMsg;	}}echo "<br/>";function checkPrice($tempPrice){	if($tempPrice > 100)	{		throw new MyCustomException("价格不能大于100");	}	return true;}try{	checkPrice(200);	echo "您传入的价格参数正确!";}catch(MyCustomException $e){	echo "调用checkPrice()方法时,异常被捕获,异常信息:".$e->errorMessage();}echo "<br/>";function CurrentPageException($ex){	echo "<span style=\"color:red;background-color:gray;\">当前页发生错误!信息:".$ex->getMessage()."</span>";}set_exception_handler("CurrentPageException");//throw new Exception("抛出Exception异常!"); echo "<br/>";//throw new MyCustomException("抛出MyCustomException异常!");//This is a comment/*要让PHP显示错误,修改配置文件 php.ini 中,把display_errors = Off改为 On*/echo "Hello World,我是周杰伦";?><br/><div><?php$myWord = "哈哈,世界和平!<br/>";  print "长度为:".strlen($myWord)."(提示:由于本文件的编码方式是UTF8,在PHP中,一个中文的长度为3,英文的长度为1,如果本文件的编码方式是GB2312,那么一个汉字的长度为2字节)<br/>";echo $myWord."中国万岁".$myWord;//echo($myWord);//print($myWord);echo "字符串\"布鲁斯Bruce.刘Liu最棒\"中Liu的位置为:".strpos("布鲁斯Bruce.刘Liu最棒","Liu")."<br/>";if(4>5){	echo "if执行<br/>";}elseif(4==5){	echo "elseif执行<br/>";}else{	echo "else执行<br/>";}$x="hello";switch ($x){case "bruce":  echo "Number 1";  break;case "Hello":  echo "Number 2";  break;case "hello":  echo "Number 3";  break;default:  echo "No number between 1 and 3";}echo "<br/>";$names = array("aaa","bbb","ccc");echo $names[1];echo "<br/>";$ages = array("aaa"=>18,"bbb"=>19,"ccc"=>28);echo $ages["ccc"];echo "<br/>";$families = array("mmm"=>array("name"=>"bruce","age"=>18,"sex"=>true),"nnn"=>array("name"=>"kim","age"=>19,"sex"=>false),"kkk"=>array("name"=>"yage","age"=>20,"sex"=>true));echo "姓名:".$families["kkk"]["name"].",性别:".$families["kkk"]["sex"];echo "<br/>";if($families["nnn"]["sex"]){	echo $families["nnn"]["name"]."的性别为男性!";}else{	echo $families["nnn"]["name"]."的性别为女性!";}echo "<br/>PHP中的while循环、do while循环、for 循环与其他语言都类似!下面重点介绍 foreach 循环:<br/>";foreach($names as $nameItem){	echo "姓名:".$nameItem."<br/>";}echo "<br/>";function Add($num1,$num2){	return $num1 + $num2;}echo "3.5+5=".Add(3.5,5 /* 如果第二个参数为 true,则结果为4,因为 true 的整数值为1 */);echo "<br/>";echo date("y/m/d");echo "<br/>";/*语法mktime(hour,minute,second,month,day,year,is_dst)*/$tomorrow = mktime(0,0,0,date("m"),date("d")+1,date("Y"));echo "Tomorrow is ".date("Y/m/d", $tomorrow);?></div><?php /*include() 方法与 require() 的异同同:服务器端引用异:include() 函数会生成一个警告(但是脚本会继续执行),而 require() 函数会生成一个致命错误(fatal error)(在错误发生后脚本会停止执行)。*/require("doSubmit.php");?><div><h2>读取文件</h2><?phpif(!file_exists("welcome.txt")){	die("welcome.txt没有找到!"); /* 不往下执行服务器脚本 */}else{	$file = fopen("welcome.txt", "r") or exit("不能打开文件!");	//Output a line of the file until the end is reached	while(!feof($file))	  {	  echo fgets($file). "<br />";	  }	fclose($file);}?></div><?phprequire("doUpload.php");?><div><?php/*语法:setcookie(name, value, expire, path, domain);*/if(!isset($_COOKIE["userInfo"])){	setcookie("userInfo", "Alex Porter", time()+3600 /* 一个小孩后过期 */);}else{	echo "欢迎您:".$_COOKIE["userInfo"]."!<br/>";}session_start();/*Session 保存的Cookie名称为:PHPSESSID*/if(!isset($_SESSION["currentUserName"])){		$_SESSION["currentUserName"] = "张三";}else{	echo $_SESSION["currentUserName"];	//unset($_SESSION['currentUserName']); /* unset() 函数用于释放指定的 session 变量 */	//session_destroy(); /* session_destroy() 函数彻底终结 session */}/*发送邮件语法:mail(to,subject,message,headers,parameters)$to = "testzhangsan@163.com";$subject = "Test mail";$message = "Hello! This is a simple email message.";$from = "testzhangsan@gmail.com";$headers = "From: $from";mail($to,$subject,$message,$headers);echo "Mail Sent.";*/?></div><div>	<div class="innerDiv">		<h2>函数过滤</h2>	</div>	<div>		<?php						$num1 = 15;			echo "类型验证:";			if(!filter_var($num1,FILTER_VALIDATE_INT))			{				//FILTER_VALIDATE_INT 区分大小写				echo "必须是整数类型!";			}			else			{				echo "您输入的整数类型合法!";			}			echo "<br/>";			echo "整数范围验证:";			$numRange = array(				"options"=>array(					"min_range"=>0,					"max_range"=>30				)			);			//注意:上面的 options、min_range、max_range 不能写错			if(!filter_var($num1,FILTER_VALIDATE_INT, $numRange))			{				echo "整数必须在0和30之间!";			}			else			{				echo "您输入的整数的范围合法!";			}			echo "<br/>";			function convertSpace($words)			{				return str_replace("_", " ", $words);			}			$string = "皮_特_是_一_个_好_人!";			echo filter_var($string, FILTER_CALLBACK, array("options"=>"convertSpace"));		?>	</div></div></body></html>

doSubmit.php

<div>	<div class="innerDiv">		<h2>POST提交</h2>	</div>	<div class="innerDiv">		<form action="hello.php" method="post">			姓名:<input type="text" name="name" /><br/>			年龄:<input type="text" name="age" /><br/>			<input type="submit" value="提交" />		</form>	</div>	<div class="innerDiv">		<h3>您提交过来的信息如下</h3>		姓名:<?php echo isset($_POST["name"]) ? $_POST["name"] : ""; ?><br/>		年龄:<?php echo isset($_POST["age"]) ? $_POST["age"] : ""; ?><br/>	</div></div><div>	<div class="innerDiv">		<h2>GET提交</h2>	</div>	<div class="innerDiv">		<form action="hello.php" method="get">			姓名:<input type="text" name="name" /><br/>			年龄:<input type="text" name="age" /><br/>			<input type="submit" value="提交" />		</form>	</div>	<div class="innerDiv">		<h3>您提交过来的信息如下</h3>		<?php		/*		PHP 的 $_REQUEST 变量包含了 $_GET, $_POST 以及 $_COOKIE 的内容。		*/		?>		姓名:<?php echo isset($_GET["name"]) ? $_GET["name"] : ""; /* 也可以用 $_REQUEST["name"] 获取 */ ?><br/>		年龄:<?php echo isset($_GET["age"]) ? $_GET["age"] : ""; ?><br/>	</div></div>

doUpload.php

<div>	<div class="innerDiv">		<h2>文件上传</h2>	</div>	<div class="innerDiv">		<form action="Hello.php" method="post" enctype="multipart/form-data">			<label for="yourImages">您的照片:</label>			<input type="file" name="yourPhotos" id="yourImages" /><br />			<input type="submit" name="submit" value="上传" />		</form>	</div>	<div class="innerDiv">		<h3>您提交过来的信息如下</h3>		<?php			if($_FILES["yourPhotos"]["error"] > 0)			{				echo "上传出错!信息:".$_FILES["yourPhotos"]["error"]."<br/>";			}			else			{				/*				文件名:EditPlus V3.20.400 中文绿色版.RAR				类型:application/octet-stream				大小:1093.7607421875KB				存储路径:C:\WINDOWS\Temp\php2B.tmp				*/				$currentFileName = $_FILES["yourPhotos"]["name"];				$currentFileType = $_FILES["yourPhotos"]["type"];				$currentFileSize = $_FILES["yourPhotos"]["size"];				$currentFileTmp_Name = $_FILES["yourPhotos"]["tmp_name"];				echo "文件名:".$currentFileName."<br/>";				echo "类型:".$currentFileType."<br/>";				echo "大小:".($currentFileSize/1024)."KB<br/>";				echo "临时存储路径:".$currentFileTmp_Name."<br/>";								if (file_exists("uploadedFiles/" . $currentFileName))				{					echo $currentFileName . " 已经存在!";				}				else				{					move_uploaded_file($currentFileTmp_Name,"uploadedFiles/" . $currentFileName);					echo "永久存储路径:" . "uploadedFiles/" . $currentFileName;				}			}		?>	</div></div>

谢谢浏览!

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