php signup form with database

JS Block Duplicate Commit The first is when the form that tells the browser to disable the Submit button is submitted, and the second is to change the text of the button to give the user some idea of what's going on. This is the code added to your form tag: onsubmit= "document.getElementById" (' MyButton '). Disabled=true;document.getelementbyid (' MyButton '). Value= ' submitting, please wait ... '; Your

PHP prevents forms from repeating the submission method It is a tricky problem for users to submit a form because of the speed of the network, or if the webpage is maliciously flushed, causing the same record to be repeatedly inserted into the database. We can start with the client and the server side, and try to avoid repeating submissions for the same

() . FadeIn (1500, function (){ $ ('# Message'). append (""); }); } }); Return false; The core function of the above code is. ajax () is used to asynchronously transmit the obtained form information (dataString) to the defined backend PHP url (bin/process. php ). If the data is successfully transmitted, it will return a series of defined information to the us

Processing Form data in PHP is better than other web pagesProgramLanguage is simpler-if you use this language for a while, you will find it an indisputable fact. The simplicity of this operation makes it easy to process more complex form events, including the topic discussed today, that is, there are multiple buttons in the same

Submit a jquery mobile form via Ajax and PHP File name:callajax.php File name:index.php +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++JQuery Mobile Form Submissionhttp://blog.csdn.net/tjpu_lin/article/details/28394253 I recently developed a mobile phone page with jquery mobile and encountered a problem when it was submitted to the

);$str = Preg_replace ("/() +)/I ","", $str);//Multiple consecutiveThe label retains only one$str =stripslashes ($STR);echo strip_tags ($STR). "RN------------------------------------------------------RN ";echo Htmlspecialchars ($STR). "RN------------------------------------------------------RN ";echo htmlentities ($STR). "RN------------------------------------------------------RN ";echo mysql_escape_string ($STR). "RN------------------------------------------------------RN "; String conta

The user submits the form may because of the speed of the reason, or the webpage is maliciously refreshes, causes the same record to insert repeatedly in the database, therefore cannot neglect one limit is prevents the user to repeat submits the form, because may the user repeatedly clicked the submit button or the attacker maliciously submits the data, Then we g

database{$ _ SESSION ['IP'] = $ _ SERVER ['remote _ ADDR ']; // writes data for the first time, paving the way for refresh or rollback judgment.Mysql_query ("insert into admin (id, name, age) VALUES (123, 'Yao Ming ', 25)"); // write to the database}Else // the operation after the first write will no longer be written to the database{Echo 'do not submit the

has been submitted, ignoring this submission. The server generates a random number to the SESSION, which is assigned to the form page $data[' sess_id ' = $_session[' sid '] = Mt_rand (9999), $this->load->view (' form ', $DATA);//form page Hidden field holds this session value">Handle if ($_post[' sid ']! = ' $_post[' sid ') = = $_session[' sid ']) {unset ($_ses

. php.Copy codeThe Code is as follows: $ ('regname'). onblur = function (){Name = $ ('regname'). value; // get the Registration nameIf (cname1 = 'yes') {// this step is performed only when the user name format is correctXmlhttp. open ('get', 'chkname. php? Name = '+ name, true); // open () creates XMLHttpRequest to initialize the connection, and Ajax creates a new requestXmlhttp. onreadystatechange = function () {// when XMLHttpRequest is specified as

It was not the first time I wrote a form and submitted it, but I still encountered an unsolved problem. After studying for nearly one day, I asked N + netizens and finally solved the problem. The process was rather tortuous. Thank you for your help. Record it here and you won't be able to fall down in the same place in the future! The database is bbs, and the table is test. three fields are id, name, and se

How PHP handles multiple values processed from a form at once, with a "| |" Do the separators? For example, hobbies add basketball, soccer, and so on as a field stored in the database, between football and basketball with | | As a delimiter? Reply content: How PHP handles multiple values processed from a

The example of this paper is to analyze the way that PHP prevents form recurrence by recording IP. Share to everyone for your reference. The specific analysis is as follows: This principle is relatively simple is the first time the user submitted when we record the user's IP address, that way, if the user submits the form again within a fixed time, it prompts fo

recently developed a mobile phone page with jquery mobile and encountered a problem when it was submitted to the form Form.The background is to use the servlet processing, want to through the servlet inside the redirect page jump forwarding is now no use on the phone, there is errorpage prompt Information.Query the online information and jquery Mobile API that the jquery mobile form submission By default i

used to send the obtained form information (datastring) asynchronously to the defined background PHP URL (bin/process.php) by post. If the data is delivered successfully, it will return a series of our defined information to the user. The last return is false to prevent the page from reloading. In addition to returning success messages and sending emails, there are other things we can do more broadly. For

Of course, it's not over here. After all, if you can create multiple forms on a single page, why can't you build a form across multiple pages? Unfortunately, it's not easy to send data from one page to another page with HTTP. Because there is no built-in mechanism in the HTTP protocol to define the concept of a series of pages. However, with some clever techniques and some useful functions of PHP, we can b

messages and sending emails, we can also do more extensive things. For example, when the obtained data is processed by a background script, the data is inserted into the database and the information submitted by the user is returned.Explanation:First, obtain the value of the form item. The method is mentioned in step 3:Var name = $ ("input # name"). val ();Var email = $ ("input # email"). val ();Var phone

Working with form data in PHP is simpler than other Web programming languages-if you use the language for a while, you'll find it an indisputable fact. The simplicity of this operation makes it easy to handle more complex form events, including the topic discussed today, where multiple buttons are used to handle different tasks in the same

Working with form data in PHP is simpler than other Web programming languages-if you use the language for a while, you'll find it an indisputable fact. The simplicity of this operation makes it easy to handle more complex form events, including the topic discussed today, where multiple buttons are used to handle different tasks in the same

How does PHP make a contact form? [Img = http://pan.baidu.com/share/link? Container ID = 349025 uk = 926243211] [/img] This is how the customer sends the message to my mailbox after leaving a message. How can this problem be achieved? I know how to use form, but I don't know how to implement it internally and how to write the code that responds to the submit