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Php + ajax + SQL for data interaction

Source: Internet
Author: User
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Php + ajax + SQL for data interaction 1. create a new SQL table. The table content is as follows:


2. create a public file conn. php to connect to the database:


  Header ("Content-Type: text/html; charset = utf8"); // Declare the encoding format $ conn = mysql_connect ("Localhost","Root","Aaaaaa")Or die("Database connection error". Mysql_errno (); // Connect to SQL mysql_select_db ("Phptest", $ Conn); mysql_query ('Set NAMES utf8')Or die('Character Set setting error'. Mysql_error (); // sets the input character set encoding.?>
3. the php Server provides the front-end ajax data interface to create the phptoAJAX file. Php
 

     Require_once("Conn. php"); // Import a public file $ query = mysql_query ("SElECT * FROM txt")Or die("Error message:". Mysql_error (); $ jsonArray =Array(); // New data is used to receive data groups corresponding to each row of the databaseWhile($ Rows = mysql_fetch_array ($ query )){
// Process automatically corresponding content in the database $ rows ['Content'] = Mb_substr (strip_tags (htmlspecialchars_decode ($ rows ['Content']), 0,100,"UTF-8"); // Add the database content to the new array
Array_push ($ jsonArray, $ rows); // note that $ rows}EchoJson_encode ($ jsonArray); // Convert to json and pass it to the front end
4. create a new phpToAJAX. HTML front-end to receive data. here I use the ajax method encapsulated by jquery, as shown in the page after execution:
Html> <Html> <HeadLang ="En"> <MetaCharset =UTF-8"> <Title>
    Title> <ScriptType ="Text/javascript"Src =Jquery-1.8.3.min.js">
    Script>
    Head> <Body> <UlId ="List">
  
     

    Ul> <ScriptType ="Text/javascript"> $ (Function() {$. Ajax ({Type:"Post", // Transfer methodUrl:"PhpToAJAX. php", // Data interfaceDataType:"Json", // Receiving format success:Function(Msg) // if the receiving succeeds, execute the following {VarLi ="";For(VarI = 0; I
    
     
Length-1; I ++) // 10 {li + =
     "
     
  • "+ Msg [I] ['Title'] +"
    "+ Msg [I] ['Content'] +"... + Msg [I] ['Id'] +"'Target = '_ blank'>Details
    • 
     ";} $ ("# List").Html (li) ;}, error:Function() // If the receiving fails, execute the following
    
    {Console. log ("Link error")}});});
     Script>
    Body>
    Html>
    5. click the "details" link shown in the previous step to view the corresponding article content and create a phpArtcle. php file.
    
      Require_once("Conn. php"); $ Id = $ _ GET ['Art']; // Receives data uploaded by the front-end
    // Query the corresponding content of the database
    $ Query = mysql_query ("SELECT * FROM txt WHERE id = '$ ID'") or die ("article error:". mysql_error ());
    // Traverse the array to display the content
    If($ Rows = mysql_fetch_array ($ query )){Echo"". $ Rows ['Title']."";Echo"
    ". Htmlspecialchars_decode ($ rows ['Content'])."
    ";}
                  
    ------------------- Finished -----------------------

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    Related Keywords:
    php get json data from ajax post how to save data in database using ajax in php send data from javascript to php using ajax ajax php how to get ajax post data in php sql for data analysis udacity ajax sql query builder

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