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PHP基础语法

2013-12-31 16:24 316 查看
<html>
<body>
<?php
include 'menu.php';
require "menu.php";
include 'vars.php';
echo "No.0: I have a $color $car <br/>";

echo "No.1: Hello, World!<br/>";
print "No.2: My name is Angelo<br/>";
//This is a comment;
$txt1 = "Hello World!";

$number = 16;
echo "No.3: $txt1 <br>";

$txt2 = "GaoChao";
echo "No.4: ".$txt1. ": " .$txt2."<br>";

echo "No.5: ". strlen($txt1) . "<br>";

echo "No.6: ".strpos($txt1, "World")."<br>";

echo "No.7: ".++$number;

echo "<br>";
echo "No.8: ";

//if语句
$d = date("D");
if ($d == "Fri")
echo "Have a nice weekend!";
else
echo "Have a nice ".$d."!";

if ($d == "Mon")
{
echo "<br>Hello!";
echo "Have a nice Monday! <br/>";
}

//elseif语句
echo "No.9: ";
if ($d == "Fri")
echo "Have a nice weekend!";
elseif ($d == "Sun")
echo "Have a nice Sunday!";
elseif ($d =="Mon")
echo "Have a nice day!";

//switch语句
$x = "Number 2";
echo "<br>No.10: ";
switch ($x)
{
case "Number 1": echo "Number1"; break;
case "Number 2": echo "Number2"; break;
case "Number 3": echo "Number3"; break;
default: echo "false";
}

//一维数组
echo"<br/>No.11: ";
$names = array("Peter", "Angelo", "Gao");
echo $names[0]. " and ". $names[1]. " and ". $names[2];

//关联数组
echo "<br/>No.12: ";
$ages = array("Peter"=>32, "Angelo"=>23, "Gao"=>26);
//$ages['Peter'] = 32;...
echo "Peter's age is: ".$ages['Peter'].";  ";
echo "Angelo's age is: ".$ages['Angelo'].";  ";
echo "Gao's age is: ".$ages['Gao']."  ";

//多位数组
echo "<br/>No.13: ";
$families = array
(
"Griffin" => array
(
"peter",
"Lois",
"Megan"
),
"Quagmire" => array
(
"Glenn"
),
"Brown" => array
(
"Cleveland",
"Loretta",
"Junior"
)
);
echo $families['Griffin'][2];

//while循环
echo "<br>No.14: ";
$i = 1;
while ($i <= 5)
{
echo "The number is ". $i . "; ";
$i++;
}

//do while循环
echo "<br>";
$i = 0;
do
{
$i++;
echo "The number is ". $i . ";";
}
while($i < 5);

//for循环
echo "<br>No.15: ";
for ($i = 1; $i <=5; $i++)
{
echo "Hello: " . $i . "; ";
}

//foreach语句
echo "<br>No.16: ";
foreach ($ages as $v)
{
echo "Value: " . $v . "; ";
}

//自定义函数
echo "<br>No.17: ";
function writeMyName()
{
echo "GaoChao";
}
writeMyName();

//PHP函数-添加参数
echo "<br>No.18: ";
function writeMyName2($fname)
{
return $fname . " Angelo";
}
echo "My name is: " . writeMyName2("Miachel");

echo "<br>";
function writeMyName3($fname, $punctuation)
{
echo $fname . " Angelo" . $punctuation . "<br/>";
}
echo "My name is: ";
writeMyName3("John", "...");

//Date()函数: date(formate, timestamp)
echo "<br>No.19: ";
echo date("Y/m/d"); //Y：2013；y:13; M:Dec; m:12; D:Wed; d:25;
echo "<br/>";
echo date("Y.m.d");
echo "<br/>";
echo date("Y-m-d");
echo "<br/>";
echo date("Y, m, d");

//mktime(hour, minute, second, month, day, year)
$tomorrow = mktime(0, 0, 0, date("m"), date("d") + 1, date("Y"));
echo "<br/>";
echo "<br/>No.20: ";
echo "Tomorrow is: " . date("Y-m-d", $tomorrow);

//fopen();
echo "<br/>No.21: ";

//$file = fopen("welcome.txt", "w") or exit("Unable to open file!");
$file = fopen("welcome.txt", "w+") ;//or exit("Unable to open file!");
if(feof($file)) echo "End of file";
fclose($file);

//fgets():逐行读取
echo "<br/><br/>No.22: ";
$file = fopen("welcome.txt", "r") or exit("Unable to open file!");
while(!feof($file))
{
echo fgets($file). "<br/>";
}
fclose($file);

//fgetc():逐字符读取文件
echo "<br/><br/>No.23: ";
$file = fopen("welcome.txt", "r") or exit("Unable to open file!");
while(!feof($file))
{
echo fgetc($file);
}
fclose($file);

//include require
include 'header.php';
require 'header.php';
?>
</body>
</html>
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