First, this example is modified based on the message collation.
We used jquery. js to delete ajax and dom.
Join
Copy codeThe Code is as follows:
<Script type = "text/javascript" src = "lib/jquery. js"> </script>
Add a table
Copy codeThe Code is as follows:
Id = "t <! -- {$ Item. id} -->"
Write a js file:
Copy codeThe Code is as follows:
<Script>
Function delItem (id ){
$. Get ('delete. php? Id = '+ id, null, function (msg) {// ajax request. After the request, run the following code:
If ('1' = msg) {// 1 indicates success
$ ('# T' + id). remove (); // delete a table whose id is txx
} Else {// otherwise, an error message is displayed.
Alert (msg );
}
});
}
</Script>
Change the link to href = "javascript: delItem ('<! -- {$ Item. id} --> ')"
The modification to delete. php is to change the error statement to direct output.
OK.
Index. tpl:
Copy codeThe Code is as follows:
<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<Html xmlns = "http://www.w3.org/1999/xhtml">
<Head>
<Meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8"/>
<Title> all messages </title>
<Link rel = "stylesheet" type = "text/css" href = "style.css" media = "all"/>
<Script type = "text/javascript" src = "lib/jquery. js"> </script>
</Head>
<Body>
<! -- {If $ smarty. session. username} -->
Welcome: <! -- {$ Smarty. session. username} -->
<A href = "logout. php"> exit </a>
<! -- {Else} -->
<A href = "login. php"> logon </a>
<A href = "reg. php"> register </a>
<! -- {/If} -->
<A href = "add. php"> post a message </a>
<! -- {Foreach from = $ gblist item = item} -->
<Table id = "t <! -- {$ Item. id} --> "width =" 700 "border =" 0 "cellspacing =" 0 "cellpadding =" 0 "class =" tb ">
<Tr>
<Td class = "bg"> <B> [<! -- {$ Item. username} -->] </B> posted on: <! -- {$ Item. insert_time} --> </td>
</Tr>
<Tr>
<Td> <! -- {$ Item. content} -->
<Br/>
<! -- {If $ item. user_file} -->
Attachment: <a target = "_ blank" href = "uploads/<! -- {$ Item. user_file} --> "> <! -- {$ Item. user_file} --> </a>
<! -- {/If} -->
</Td>
</Tr>
<Tr>
<Td align = "right"> <! -- {If $ item. user_id ==$ smarty. session. user_id} --> <a href = "add. php? Id = <! -- {$ Item. id} --> "> modify </a> <a href =" javascript: delItem ('<! -- {$ Item. id} --> ') "> Delete </a> <! -- {/If} --> </td>
</Tr>
</Table>
<! -- {/Foreach} -->
<! -- {$ PagePanel} -->
<Script>
Function delItem (id ){
$. Get ('delete. php? Id = '+ id, null, function (msg ){
If ('1' = msg ){
$ ('# T' + id). remove ();
} Else {
Alert (msg );
}
});
}
</Script>
</Body>
</Html>
Delete. php:
Copy codeThe Code is as follows:
<? Php
Require ('common. php ');
// Query the message
$ Q = $ query-> query ('select * from gb_content where id = '. intval ($ _ GET ['id']);
$ Rs = $ query-> fetch_array ($ q );
$ Error = array ();
If ($ rs ['user _ id']! = Intval ($ _ SESSION ['user _ id']) {// judge whether the user_id is the same
$ Error = 'you cannot delete this information. You can only delete your own release ';
}
If (! $ Error ){
$ Query-> query ('delete from gb_content where id = '. intval ($ _ GET ['id']); // delete a statement
If ($ rs ['user _ file']) {// delete an attachment
@ Unlink ('uploads/'. $ rs ['user _ file']);
}
Echo 1; // success
} Else {
Echo $ error;
}
?>
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