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Write data to the database using ajax php

Source: Internet
Author: User
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First, you need an input table. Copy codeThe Code is as follows: <! --
To change this template, choose Tools | Templates
And open the template in the editor.
-->
<! Doctype html public "-// W3C // dtd html 4.01 Transitional // EN">
<Html>
<Head>
<Title> </title>
<Meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8">
<Script src = "submit. js" language = "javascript"> </script>
</Head>
<Body>
Insert knowledge point
<Form name = "insertForm">
<Label for = "question"> </label> knowledge point
<Input name = "question" type = "text"/>
<Br/>
<Label for = "answer"> answer </label>
<Input name = "answer" type = "text"/>
<Br/>
<Br/>
<Input name = "confirm" value = "add" type = "button" onclick = "getValue ();">
</Form>
</Body>
</Html>

Js is required to process the submitted data to the server and obtain the submitted returned data from the server. The submit. js code is as follows:Copy codeThe Code is as follows :/*
* To change this template, choose Tools | Templates
* And open the template in the editor.
*/
Var xmlHttp;
Function getValue (){
Alert ("getvaluel ");
Var question = document. insertForm. question. value;
// Alert (question );
Var answer = document. insertForm. answer. value;
// Alert (answer );
Submit (question, answer );
};
Function submit (question, answer ){
XmlHttp = GetXmlHttpObject ();
If (xmlHttp = null)
{
Alert ("Your browser does not support AJAX! ");
Return;
}
XmlHttp. onreadystatechange = function (){
If (xmlHttp. readyState = 4 ){
Alert (xmlHttp. responseText );
}
};
Var url = "insert1.php ";
XmlHttp. open ("post", url, true );
XmlHttp. setRequestHeader ("Content-Type", "application/x-www-form-urlencoded; charset = UTF-8 ");
XmlHttp. send ("question =" + question + "& answer =" + answer );

}
Function GetXmlHttpObject ()
{
Var xmlHttp = null;
Try
{
// Firefox, Opera 8.0 +, Safari
XmlHttp = new XMLHttpRequest ();
}
Catch (e)
{
// Internet Explorer
Try
{
XmlHttp = new ActiveXObject ("Msxml2.XMLHTTP ");
}
Catch (e)
{
XmlHttp = new ActiveXObject ("Microsoft. XMLHTTP ");
}
}
Return xmlHttp;
}

Then the PHP processing interface is responsible for exchanging data with the server.Copy codeThe Code is as follows: <? Php
/*
* To change this template, choose Tools | Templates
* And open the template in the editor.
*/
// Echo $ _ POST ["question"];
// Echo $ _ POST ["answer"];
$ Q = $ _ POST ['question'];
$ A = $ _ POST ['answer'];
// $ Q = 'qq ';
// $ A = "";
$ Con = mysql_connect ("localhost", "joe", "123 ");
If (! $ Con)
{
// Die ('could not connect: '. mysql_error ());
Echo 'could not connect: '. mysql_error ();
}
Mysql_select_db ("joe", $ con );
Mysql_query ("insert into message VALUES ('$ Q',' $ A', 'None ')");
Mysql_close ($ con );
Echo "input successful ";
?>

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Related Keywords:
how to get data from database using ajax in struts2 send data from javascript to php using ajax save data to mysql database using php php write to database write to database php how to add data to mysql database using php how to send data to mysql database using php

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