php add delete change and check the example of demo written by yourself
- 2020-08-22 21:56:39
- OfStack
1. Common method for linking databases: ES0en.php
2. Increase add. php
3. Delete del. php
<?php
// The first 1 Step: Link the database
$conn=@mysql_connect("localhost:3306","root","root")or die ("mysql A link failure ");
// The first 2 step : Select the specified database and set the character set
@mysql_select_db("php_blog",$conn) or die ("db A link failure ".mysql_error());
mysql_query('SET NAMES UTF8')or die (" Character set error ");
?>
2. Increase add. php
<?php
include("conn.php");// Introducing a linked database
if(!empty($_POST['sub'])){
$title=$_POST['title'];
$con=$_POST['con'];
echo $sql="insert into news(id,title,dates,contents) value (null,'$title',now(),'$con')" ;
mysql_query($sql);
echo" Insert the success ";
}
?>
<form action="add.php" method="post">
The title : <input type="text" name="title"><br>
content : <textarea rows="5" cols="50" name="con"></textarea><br>
<input type="submit" name="sub" value=" published ">
</form>
3. Delete del. php
<?php
include("conn.php");// Introducing a linked database <pre name="code" class="html"><?php
include("conn.php");// Introducing a linked database
if(!empty ($_GET['id'])){
$sql="select * from news where id='".$_GET['id']."'";
$query=mysql_query($sql);
$rs=mysql_fetch_array($query);
}
if(!empty($_POST['sub'])){
$title=$_POST['title'];
$con=$_POST['con'];
$hid=$_POST['hid'];
$sql="update news set title='$title',contents='$con' where id='$hid' limit 1 ";
mysql_query($sql);
echo "<script> alert(' The update is successful '); location.href='index.php'</script>";
echo" The update is successful ";
}
?>
<form action="edit.php" method="post">
<input type="hidden" name="hid" value="<?php echo $rs['id']?>"/>
The title : <input type="text" name="title" value="<?php echo $rs['title']?>"><br>
content : <textarea rows="5" cols="50" name="con"><?php echo $rs['contents']?></textarea><br>
<input type="submit" name="sub" value=" published ">
</form></pre><br>
if(!empty($_GET['del'])){ $d=$_GET['del']; $sql="delete from news where id ='$d'"; } $query=mysql_query($sql); echo " Delete the success "; ?><p></p>
<pre></pre>
<br>
4 Change, edit.php page
<p></p>
<p><br>
</p>
<p></p><pre name="code" class="html"><?php
include("conn.php");// Introducing a linked database
if(!empty ($_GET['id'])){
$sql="select * from news where id='".$_GET['id']."'";
$query=mysql_query($sql);
$rs=mysql_fetch_array($query);
}
if(!empty($_POST['sub'])){
$title=$_POST['title'];
$con=$_POST['con'];
$hid=$_POST['hid'];
$sql="update news set title='$title',contents='$con' where id='$hid' limit 1 ";
mysql_query($sql);
echo "<script> alert(' The update is successful '); location.href='index.php'</script>";
echo" The update is successful ";
}
?>
<form action="edit.php" method="post">
<input type="hidden" name="hid" value="<?php echo $rs['id']?>"/>
The title : <input type="text" name="title" value="<?php echo $rs['title']?>"><br>
content : <textarea rows="5" cols="50" name="con"><?php echo $rs['contents']?></textarea><br>
<input type="submit" name="sub" value=" published ">
</form></pre><br>
5. Check out the list page <pre name="code" class="html"><a href="add.php"> Add content </a>
<hr>
<hr>
<form>
<input type="text" name="keys" />
<input type="submit" name="subs" value=" search "/>
</form>
<?php
include("conn.php");// Introducing a linked database
if(!empty($_GET['keys'])){
$w=" title like '%".$_GET['keys']."%'";
}else{
$w=1;
}
$sql="select * from news where $w order by id desc";
$query=mysql_query($sql);
while($rs=mysql_fetch_array($query)){
?>
<h2> The title :<a href="view.php?id=<?php echo $rs['id'] ?>"><?php echo $rs['title'] ?></a> <a href="edit.php?id=<?php echo $rs['id'] ?>"> The editor </a> | | <a href="del.php?del=<?php echo $rs['id'] ?>"> delete </a></h2>
<li><?php echo $rs['dates'] ?></li>
<p><?php echo $rs['contents'] ?></p>
<hr>
<?php
}
?>
</pre><br>
<p></p>
<p><br>
</p>