PHP? ??? ?? ??? ??? ?? ?? ???? ?????.
?? ?? ?? ??? ??? ?? ?? ??? ??????.
?? ?? ???? ?? ???? "??"? ???? ?? ?? ???? ?? ?????.
<body> <a href="edit.php?id=<?php echo $arr['id']?>"><font color="red">修改</font></a> </body>
??? ?? ?? ???? edit.php???. "Edit"? ???? ? ??? id ?? ?? ?? ?? ???? ?????.
$_GET? ???? ID? ?????. ?? ?? ???? ????, ???? <form> ???? ?????? ?? ?? ?? ?? ???? ??? ?????.
<?php $id = isset($_GET["id"])?$_GET["id"]:""; ?>
SQL ?? ??? ????.
<?php $sql="select id,title,author,content from new where id = '$id'"; $rel = mysqli_query($link,$sql);//執(zhí)行sql語(yǔ)句 $arr= mysqli_fetch_array($rel); //獲取一條新聞的所有信息 ?>
POST? ?? ??, ???, ??? ?????
<?php $title = isset($_POST['title'])?$_POST['title']:""; //獲取標(biāo)題 $author = isset($_POST['author'])?$_POST['author']:""; //獲取作者 $content = isset($_POST['content'])?$_POST['content']:""; //獲取內(nèi)容 ?>
?? ??? HTML ???? ?????
<body> <form name="article" method="post" action="update.php" style="margin:5px;"> <h1>新聞修改頁(yè)</h1> <input type="hidden" name="id" value="<?php echo $arr['id']?>"/><br/> 標(biāo) 題:<input type="text" name="title" value="<?php echo $arr['title']?>"/><br/><br/> 作 者:<input type="text" name="author" value="<?php echo $arr['title']?>"/><br/><br/> <span>內(nèi) 容:</span> <textarea cols=30 rows=5 name="content"><?php echo $arr['content']?></textarea><br/><br/> <input type="submit" value="修改新聞"/> </form> </body>
??? ?? "??"? ???? ?? ?? ???? ?? ??? ???? HTML ???? ?????.
?? ??:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>新聞修改頁(yè)面</title>
<style type="text/css">
span{display:inline-block; float: left; width: 50px;}
input[type="submit"]{margin-left: 10%;}
</style>
</head>
<body bgcolor="#ccc">
<?php
$link = mysqli_connect('localhost','username','password','test');
mysqli_set_charset($link, "utf8");
if (!$link) {
die("連接失敗:".mysqli_connect_error());
}
$id = isset($_GET["id"])?$_GET["id"]:"";
$title = isset($_POST['title'])?$_POST['title']:"";
$author = isset($_POST['author'])?$_POST['author']:"";
$content = isset($_POST['content'])?$_POST['content']:"";
$sql="select id,title,author,content from new where id = '$id'";
//echo $sql;
$rel = mysqli_query($link,$sql);//執(zhí)行sql語(yǔ)句
$arr= mysqli_fetch_array($rel);
?>
<form name="article" method="post" action="update.php" style="margin:5px;">
<h1>新聞修改頁(yè)</h1>
<input type="hidden" name="id" value="<?php echo $arr['id']?>"/><br/>
標(biāo) 題:<input type="text" name="title" value="<?php echo $arr['title']?>"/><br/><br/>
作 者:<input type="text" name="author" value="<?php echo $arr['title']?>"/><br/><br/>
<span>內(nèi) 容:</span>
<textarea cols=30 rows=5 name="content"><?php echo $arr['content']?></textarea><br/><br/>
<input type="submit" value="修改新聞"/>
</form>
</body>
</html>
