<?php
echo date("Y/m/d") . "<br>";
echo date("Y.m.d") . "<br>";
echo date("Y-m-d");
?>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>
<?php include 'header.php'; ?>
<h1>欢迎来到我的主页!</h1>
<p>一些文本。</p>
</body>
</html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>
<div class="leftmenu">
<?php include 'menu.php'; ?>
</div>
<h1>欢迎来到我的主页!</h1>
<p>一些文本。</p>
</body>
</html>
<?php
$color='red';
$car='BMW';
?>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>
<h1>欢迎来到我的主页!</h1>
<?php
include 'vars.php';
echo "I have a $color $car"; // I have a red BMW
?>
</body>
</html>
<html>
<body>
<?php
$file=fopen("welcome.txt","r");
?>
</body>
</html>
<html>
<body>
<?php
$file=fopen("welcome.txt","r") or exit("Unable to open file!");
?>
</body>
</html>
<?php
$file = fopen("test.txt","r");
//执行一些代码
fclose($file);
?>
<?php
$file = fopen("welcome.txt", "r") or exit("无法打开文件!");
// 读取文件每一行，直到文件结尾
while(!feof($file))
{
echo fgets($file). "<br>";
}
fclose($file);
?>
<?php
$file=fopen("welcome.txt","r") or exit("无法打开文件!");
while (!feof($file))
{
echo fgetc($file);
}
fclose($file);
?>
<?php
// 允许上传的图片后缀
$allowedExts = array("gif", "jpeg", "jpg", "png");
$temp = explode(".", $_FILES["file"]["name"]);
echo $_FILES["file"]["size"];
$extension = end($temp); // 获取文件后缀名
if ((($_FILES["file"]["type"] == "image/gif")
|| ($_FILES["file"]["type"] == "image/jpeg")
|| ($_FILES["file"]["type"] == "image/jpg")
|| ($_FILES["file"]["type"] == "image/pjpeg")
|| ($_FILES["file"]["type"] == "image/x-png")
|| ($_FILES["file"]["type"] == "image/png"))
&& ($_FILES["file"]["size"] < 204800) // 小于 200 kb
&& in_array($extension, $allowedExts))
{
if ($_FILES["file"]["error"] > 0)
{
echo "错误：: " . $_FILES["file"]["error"] . "<br>";
}
else
{
echo "上传文件名: " . $_FILES["file"]["name"] . "<br>";
echo "文件类型: " . $_FILES["file"]["type"] . "<br>";
echo "文件大小: " . ($_FILES["file"]["size"] / 1024) . " kB<br>";
echo "文件临时存储的位置: " . $_FILES["file"]["tmp_name"] . "<br>";
// 判断当期目录下的 upload 目录是否存在该文件
// 如果没有 upload 目录，你需要创建它，upload 目录权限为 777
if (file_exists("upload/" . $_FILES["file"]["name"]))
{
echo $_FILES["file"]["name"] . " 文件已经存在。 ";
}
else
{
// 如果 upload 目录不存在该文件则将文件上传到 upload 目录下
move_uploaded_file($_FILES["file"]["tmp_name"], "upload/" . $_FILES["file"]["name"]);
echo "文件存储在: " . "upload/" . $_FILES["file"]["name"];
}
}
}
else
{
echo "非法的文件格式";
}
?>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>
<form action="upload_file.php" method="post" enctype="multipart/form-data">
<label for="file">文件名：</label>
<input type="file" name="file" id="file"><br>
<input type="submit" name="submit" value="提交">
</form>
</body>
</html>
<?php
if ($_FILES["file"]["error"] > 0)
{
echo "错误：" . $_FILES["file"]["error"] . "<br>";
}
else
{
echo "上传文件名: " . $_FILES["file"]["name"] . "<br>";
echo "文件类型: " . $_FILES["file"]["type"] . "<br>";
echo "文件大小: " . ($_FILES["file"]["size"] / 1024) . " kB<br>";
echo "文件临时存储的位置: " . $_FILES["file"]["tmp_name"];
}
?>
<?php
// 允许上传的图片后缀
$allowedExts = array("gif", "jpeg", "jpg", "png");
$temp = explode(".", $_FILES["file"]["name"]);
$extension = end($temp); // 获取文件后缀名
if ((($_FILES["file"]["type"] == "image/gif")
|| ($_FILES["file"]["type"] == "image/jpeg")
|| ($_FILES["file"]["type"] == "image/jpg")
|| ($_FILES["file"]["type"] == "image/pjpeg")
|| ($_FILES["file"]["type"] == "image/x-png")
|| ($_FILES["file"]["type"] == "image/png"))
&& ($_FILES["file"]["size"] < 204800) // 小于 200 kb
&& in_array($extension, $allowedExts))
{
if ($_FILES["file"]["error"] > 0)
{
echo "错误：: " . $_FILES["file"]["error"] . "<br>";
}
else
{
echo "上传文件名: " . $_FILES["file"]["name"] . "<br>";
echo "文件类型: " . $_FILES["file"]["type"] . "<br>";
echo "文件大小: " . ($_FILES["file"]["size"] / 1024) . " kB<br>";
echo "文件临时存储的位置: " . $_FILES["file"]["tmp_name"];
}
}
else
{
echo "非法的文件格式";
}
?>
<?php
// 输出 cookie 值
echo $_COOKIE["user"];
// 查看所有 cookie
print_r($_COOKIE);
?>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>
<?php
if (isset($_COOKIE["user"]))
echo "欢迎 " . $_COOKIE["user"] . "!<br>";
else
echo "普通访客!<br>";
?>
</body>
</html>
<?php
// 设置 cookie 过期时间为过去 1 小时
setcookie("user", "", time()-3600);
?>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>
<form action="welcome.php" method="post">
名字: <input type="text" name="name">
年龄: <input type="text" name="age">
<input type="submit">
</form>
</body>
</html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>
欢迎 <?php echo $_POST["name"]; ?>.<br>
你 <?php echo $_POST["age"]; ?> 岁了。
</body>
</html>
<?php
session_start();
// 存储 session 数据
$_SESSION['views']=1;
?>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>
<?php
// 检索 session 数据
echo "浏览量：". $_SESSION['views'];
?>
</body>
</html>
<?php
session_start();
if(isset($_SESSION['views']))
{
$_SESSION['views']=$_SESSION['views']+1;
}
else
{
$_SESSION['views']=1;
}
echo "浏览量：". $_SESSION['views'];
?>
<?php
session_start();
if(isset($_SESSION['views']))
{
unset($_SESSION['views']);
}
?>
<?php
session_destroy();
?>
<?php
$to = "someone@example.com"; // 邮件接收者
$subject = "参数邮件"; // 邮件标题
$message = "Hello! 这是邮件的内容。"; // 邮件正文
$from = "someonelse@example.com"; // 邮件发送者
$headers = "From:" . $from; // 头部信息设置
mail($to,$subject,$message,$headers);
echo "邮件已发送";
?>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>
<?php
if (isset($_REQUEST['email'])) { // 如果接收到邮箱参数则发送邮件
// 发送邮件
$email = $_REQUEST['email'] ;
$subject = $_REQUEST['subject'] ;
$message = $_REQUEST['message'] ;
mail("someone@example.com", $subject,
$message, "From:" . $email);
echo "邮件发送成功";
} else { // 如果没有邮箱参数则显示表单
echo "<form method='post' action='mailform.php'>
Email: <input name='email' type='text'><br>
Subject: <input name='subject' type='text'><br>
Message:<br>
<textarea name='message' rows='15' cols='40'>
</textarea><br>
<input type='submit'>
</form>";
}
?>
</body>
</html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>
<?php
function spamcheck($field)
{
// filter_var() 过滤 e-mail
// 使用 FILTER_SANITIZE_EMAIL
$field=filter_var($field, FILTER_SANITIZE_EMAIL);
//filter_var() 过滤 e-mail
// 使用 FILTER_VALIDATE_EMAIL
if(filter_var($field, FILTER_VALIDATE_EMAIL))
{
return TRUE;
}
else
{
return FALSE;
}
}
if (isset($_REQUEST['email']))
{
// 如果接收到邮箱参数则发送邮件
// 判断邮箱是否合法
$mailcheck = spamcheck($_REQUEST['email']);
if ($mailcheck==FALSE)
{
echo "非法输入";
}
else
{
// 发送邮件
$email = $_REQUEST['email'] ;
$subject = $_REQUEST['subject'] ;
$message = $_REQUEST['message'] ;
mail("someone@example.com", "Subject: $subject",
$message, "From: $email" );
echo "Thank you for using our mail form";
}
}
else
{
// 如果没有邮箱参数则显示表单
echo "<form method='post' action='mailform.php'>
Email: <input name='email' type='text'><br>
Subject: <input name='subject' type='text'><br>
Message:<br>
<textarea name='message' rows='15' cols='40'>
</textarea><br>
<input type='submit'>
</form>";
}
?>
</body>
</html>
<?php
// 错误处理函数
function customError($errno, $errstr)
{
echo "<b>Error:</b> [$errno] $errstr<br>";
echo "脚本结束";
die();
}
// 设置错误处理函数
set_error_handler("customError",E_USER_WARNING);
// 触发错误
$test=2;
if ($test>1)
{
trigger_error("变量值必须小于等于 1",E_USER_WARNING);
}
?>
<?php
// 错误处理函数
function customError($errno, $errstr)
{
echo "<b>Error:</b> [$errno] $errstr<br>";
echo "已通知网站管理员";
error_log("Error: [$errno] $errstr",1,
"someone@example.com","From: webmaster@example.com");
}
// 设置错误处理函数
set_error_handler("customError",E_USER_WARNING);
// 触发错误
$test=2;
if ($test>1)
{
trigger_error("变量值必须小于等于 1",E_USER_WARNING);
}
?>
<?php
// 创建一个有异常处理的函数
function checkNum($number)
{
if($number>1)
{
throw new Exception("变量值必须小于等于 1");
}
return true;
}
// 在 try 块 触发异常
try
{
checkNum(2);
// 如果抛出异常，以下文本不会输出
echo '如果输出该内容，说明 $number 变量';
}
// 捕获异常
catch(Exception $e)
{
echo 'Message: ' .$e->getMessage();
}
?>
<?php
class customException extends Exception
{
public function errorMessage()
{
// 错误信息
$errorMsg = '错误行号 '.$this->getLine().' in '.$this->getFile()
.': <b>'.$this->getMessage().'</b> 不是一个合法的 E-Mail 地址';
return $errorMsg;
}
}
$email = "someone@example...com";
try
{
// 检测邮箱
if(filter_var($email, FILTER_VALIDATE_EMAIL) === FALSE)
{
// 如果是个不合法的邮箱地址，抛出异常
throw new customException($email);
}
}
catch (customException $e)
{
//display custom message
echo $e->errorMessage();
}
?>
<?php
$int = 123;
if(!filter_var($int, FILTER_VALIDATE_INT))
{
echo("不是一个合法的整数");
}
else
{
echo("是个合法的整数");
}
?>
<?php
$var=300;
$int_options = array(
"options"=>array
(
"min_range"=>0,
"max_range"=>256
)
);
if(!filter_var($var, FILTER_VALIDATE_INT, $int_options))
{
echo("不是一个合法的整数");
}
else
{
echo("是个合法的整数");
}
?>
<?php
if(!filter_has_var(INPUT_GET, "email"))
{
echo("没有 email 参数");
}
else
{
if (!filter_input(INPUT_GET, "email", FILTER_VALIDATE_EMAIL))
{
echo "不是一个合法的 E-Mail";
}
else
{
echo "是一个合法的 E-Mail";
}
}
?>
<?php
$filters = array
(
"name" => array
(
"filter"=>FILTER_SANITIZE_STRING
),
"age" => array
(
"filter"=>FILTER_VALIDATE_INT,
"options"=>array
(
"min_range"=>1,
"max_range"=>120
)
),
"email"=> FILTER_VALIDATE_EMAIL
);
$result = filter_input_array(INPUT_GET, $filters);
if (!$result["age"])
{
echo("年龄必须在 1 到 120 之间。<br>");
}
elseif(!$result["email"])
{
echo("E-Mail 不合法<br>");
}
else
{
echo("输入正确");
}
?>
<?php
function convertSpace($string)
{
return str_replace("_", ".", $string);
}
$string = "www_runoob_com!";
echo filter_var($string, FILTER_CALLBACK,
array("options"=>"convertSpace"));
?>
<?php
$int = 122;
$min = 1;
$max = 200;
if (filter_var($int, FILTER_VALIDATE_INT, array("options" => array("min_range"=>$min, "max_range"=>$max))) === false) {
echo("变量值不在合法范围内");
} else {
echo("变量值在合法范围内");
}
?>
<?php
$ip = "2001:0db8:85a3:08d3:1319:8a2e:0370:7334";
if (!filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) === false) {
echo("$ip 是一个 IPv6 地址");
} else {
echo("$ip 不是一个 IPv6 地址");
}
?>
<?php
$url = "http://www.runoob.com";
if (!filter_var($url, FILTER_VALIDATE_URL, FILTER_FLAG_QUERY_REQUIRED) === false) {
echo("$url 是一个合法的 URL");
} else {
echo("$url 不是一个合法的 URL");
}
?>
<?php
$str = "<h1>Hello WorldÆØÅ!</h1>";
$newstr = filter_var($str, FILTER_SANITIZE_STRING, FILTER_FLAG_STRIP_HIGH);
echo $newstr;
?>
<?php
$arr = array('a' => 1, 'b' => 2, 'c' => 3, 'd' => 4, 'e' => 5);
echo json_encode($arr);
?>
<?php
class Emp {
public $name = "";
public $hobbies = "";
public $birthdate = "";
}
$e = new Emp();
$e->name = "sachin";
$e->hobbies = "sports";
$e->birthdate = date('m/d/Y h:i:s a', "8/5/1974 12:20:03 p");
$e->birthdate = date('m/d/Y h:i:s a', strtotime("8/5/1974 12:20:03"));
echo json_encode($e);
?>
<?php
$json = '{"a":1,"b":2,"c":3,"d":4,"e":5}';
var_dump(json_decode($json));
var_dump(json_decode($json, true));
?>
