Use ajax to post the following values Program Debugged: = F. user_age.value;VaR usersex = F. user_sex.value;// The URL of the receiving form var url = "/ajax_output.php"; // The value of post, and connect each variable through & to VaR poststr = "User_name =" + username + "& user_age =" + userage + "& user_sex =" + usersex;// Instantiate Ajax // var Ajax = initajax (); VaR Ajax = false; // Start initializing the XMLHTTPRequest object If (window. XMLHttpRequest) {// Mozilla Browser Ajax = new XMLHttpRequest (); If (Ajax. overridemimetype) {// sets the mime category Ajax. overridemimetype ("text/XML "); } } Else if (window. activexobject) {// IE browser Try { Ajax = new activexobject ("msxml2.xmlhttp "); } Catch (e ){ Try { Ajax = new activexobject ("Microsoft. XMLHTTP "); } Catch (e ){} } } If (! Ajax) {// exception. An error occurred while creating the object instance. Window. Alert ("the XMLHTTPRequest object instance cannot be created ."); Return false; } // Open the connection Ajax in post mode. open ("Post", URL, true); // defines the HTTP header information of the transmitted file Ajax. setRequestHeader ("Content-Type", "application/X-WWW-form-urlencoded"); // send post data Ajax. send (poststr); // get the Ajax execution status. onreadystatechange = function (){ // If the execution status is successful, the returned information is written to the specified layer. If (Ajax. readystate = 4 & Ajax. Status = 200 ){ MSG. innerhtml = Ajax. responsetext; } } } </SCRIPT> <body> <Div id = "MSG"> </div> <form name = "user_info" method = "Post" Action = ""> Name: <input type = "text" name = "user_name"/> <br/> Age: <input type = "text" name = "user_age"/> <br/> gender: <input type = "text" name = "user_sex"/> <br/> <input type = "button" value = "Submit Form" onclick = "saveuserinfo () "> </form> </body> the preceding page is stored as Ajax. PHP then creates another PHP file, ajax_output.php <? Echo $ _ post ['user _ name']; Echo $ _ post ['user _ age']; Echo $ _ post ['user _ sex'];?>
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