PHP Development Message Board CRUD (add, delete, change, check) operation _php Instance

Source: Internet
Author: User
Tags create database

Project structure:

Add Page: Description: Here only focus on the operation, the interface of the art does not work, I hope we understand ...

List page:

To modify a page:

SQL required in the project:

Copy Code code as follows:

Create Database form;

Use form;

CREATE TABLE ' message ' (
' id ' tinyint (1) not NULL auto_increment,
' User ' varchar not NULL,
' title ' varchar Not NULL,
' Content ' Tinytext not NULL,
' Lastdate ' date not NULL,
PRIMARY KEY (' id ')
) Engine=innodb DEFAULT CHARSET=GBK auto_increment=1;


conn.php
Copy Code code as follows:

<?php
$conn = @ mysql_connect ("localhost", "root", "") or Die ("Database link error");
mysql_select_db ("form", $conn);
mysql_query ("Set names ' GBK '");
?>

add.php
Copy Code code as follows:

<?php
Include ' conn.php ';
if ($_post[' submit ']) {
$sql = "INSERT into message (id,user,title,content,lastdate) VALUES (NULL, ' $_post[user] ', ' $_post[title] ', ' $_post[ Content] ', now () ';
mysql_query ($sql);

Page jumps, implemented as JavaScript
$url = "list.php";
echo "<script language= ' javascript ' type= ' text/javascript ' >";
echo "window.location.href= ' $url '";
echo "</script>";
}
?>
<script type= "Text/javascript" >
function Checkpost () {

if (addform.user.value== "") {
Alert ("Please enter user name");
AddForm.user.focus ();
return false;
}
if (addform.title.value.length<5) {
Alert ("title cannot be less than 5 characters");
AddForm.title.focus ();
return false;
}
}
</script>
<form name= "AddForm" method= "POST" action= "add.php" onsubmit= "return Checkpost ();" >
User: <input type= "text" name= "user"/><br/>
Title: <input type= "text" name= "title"/><br/>
Content: <textarea name= "Content" rows= "8" cols= "></textarea><br/>"
<input type= "Submit" name= "Submit" value= "Add"/></form>

list.php
Copy Code code as follows:

<?php
Include ' conn.php ';
?>
<?php
echo "<div align= ' center ' ><a href= ' add.php ' > continue to add </a></div>";
?>
<table width=500 border= "0" align= "center" cellpadding= "5" cellspacing= "1" bgcolor= "#add3ef" >
<?php
$sql = "SELECT * from Message order by ID";
$query =mysql_query ($sql);
while ($row =mysql_fetch_array ($query)) {
?>

<tr bgcolor= "#eff3ff" >
<td> title: <font color= "Red" ><?= $row [title]?></font> User: <font color= "Red" ><?= $row [  User]? ></font><div align= "right" ><a href= "preedit.php?id=<?= $row [id]?>" > Edit </a> | <a href= "delete.php?id=<?= $row [id]?>" > Delete </a></div></td>
</tr>
<tr bgcolor= "#ffffff" >
<td> content: <?= $row [content]?></td>
</tr>
<tr bgcolor= "#ffffff" >
<td><div align= "Right" > Release date: <?= $row [lastdate]?></div></td>
</tr>
<?php}?>
</table>

delete.php
Copy Code code as follows:

<?php
Include ' conn.php ';
$id = $_get[' id '];
$query = "Delete from message where id=". $id;
mysql_query ($query);
?>
<?php
Page jumps, implemented as JavaScript
$url = "list.php";
echo "<script language= ' javascript ' type= ' text/javascript ' >";
echo "window.location.href= ' $url '";
echo "</script>";
?>

preedit.php
Copy Code code as follows:

<?php
Include ' conn.php ';
$id =$_get[id];
$query = "SELECT * FROM message WHERE id =". $id;
$result =mysql_query ($query);
while ($rs =mysql_fetch_array ($result)) {
?>
<form method= "POST" action= "postedit.php" >
<input type= "hidden" name= "id" value= "<?= $rs [id]?>" >
User: <input type= "text" name= "user" value= "<?= $rs [user]?>"/><br/>
Title: <input type= "text" name= "title" value= "<?= $rs [title]?>"/><br/>
Content: <textarea name= "Content" rows= "8" cols= "a" ><?= $rs [content]?></textarea><br/>
<input type= "Submit" name= "Submit" value= "edit"/>
</FORM>
<?php}?>

postedit.php
Copy Code code as follows:

<?php
Include ' conn.php ';
$query = "Update message set user= ' $_post[user]", title= ' $_post[title] ', content= ' $_post[content] ' where id= ' $_post[id ' '";
mysql_query ($query);
?>
<?php
Page jumps, implemented as JavaScript
$url = "list.php";
echo "<script language= ' javascript ' type= ' text/javascript ' >";
echo "window.location.href= ' $url '";
echo "</script>";
?>

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