php 入门笔记 cookie 函数 session mail 数据库连接 xml

<script>ec(2);</script>

<blockquote>
<pre class="brush:php;toolbar:false"><?php教程 //写cookie
setcookie("user", "wang70937", time()+60);
//session
session_start();

if(isset($_session['views']))
  $_session['views']=$_session['views']+1;

else
  $_session['views']=1;
echo "session: views=". $_session['views']."<br />";
?>

<script>
	function show(){
		alert("asdf");
	}
</script>


	<title>php测试页面 </title>
	<script src="clienthint.js"></script>
	
		<?php //输出
			echo "<br />"."[******输出******]"."<br>";
			echo "hello world!"."<br>";
			$a = "php";
			$b = "language";
			echo $a." ".$b."<br>";
			
			//数组
			echo "<br>"."[******数组******]"."<br>";
			$arr = array("abcde", "fghijk", "lmnopq");
			foreach($arr as $value)
			{
				echo $value."<br>";
			}
			
			//函数
			echo "<br>"."[******函数******]"."<br>";
			function funa($a, $b){
				echo "函数参数：".$a.", ".$b;
				return "ret_value";
			}
			$ret = funa(123, "param");
			echo "函数返回值：".$ret."<br>";
			
		
			echo "<br>"."[******表单******]"."<br>";
		?>
			

name: age:

"; echo "
"."[******上传文件******]"."
"; ?>

filename:

"."[******session******]"."
"; //retrieve session data echo "pageviews=". $_session['views']; ?>
"."[******删除session******]"."
"; // session_destroy(); ?> "."[******发送邮件******]"."
"; $to = "wang70937@163.com"; $subject = "test mail"; $message = "hello! this is a simple email message."; $from = "wang70937@gmail.com"; $headers = "from: $from"; mail($to,$subject,$message,$headers); echo "mail sent."."
"; ?> "."[******mysql数据库******]"."
"; $con = mysql_connect("localhost","root","1"); if (!$con) { die('could not connect: ' . mysql_error()); } else echo "连接mysql成功!"."
"; mysql_select_db("bbs", $con); mysql_query("set names gbk"); //show tables $tablecount = mysql_query("show tables"); while($table = mysql_fetch_array($tablecount)) { //表名 $tablename = $table[0]; $sql = "select * from ".$tablename; $result = mysql_query($sql); echo "
表：[".$tablename."]
"; //表的字段个数 $filedcount = mysql_num_fields($result); //记录条数 $recordcount = mysql_num_rows($result); echo "sql[".$sql."] 记录条数：".$recordcount."
"; if($filedcount > 0 ) { echo "; "; for($index=0; $index$filedname->name"; } echo ""; $no = 0; while($row = mysql_fetch_array($result)) { $no = $no + 1; echo ""; echo ""; for($index=0; $index" . $row[$index] . ""; } echo ""; } echo "

记录序号

" . $no . "

"; } } mysql_close($con); ?> "."********xml解析********"."
"; /*$xmldoc = new domdocument(); $xmldoc->load("note.xml"); $x = $xmldoc->documentelement; foreach ($x->childnodes as $item) { print $item->nodename . " = " . $item->nodevalue . "
"; }*/ $xml = simplexml_load_file("note.xml"); echo $xml->getname() . "
"; foreach($xml->children() as $child) { echo $child->getname() . ": " . $child . "
"; } ?> "."*******ajax*******"."
"; ?>

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