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clear text box value after submit

Posted by 77517296

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77517296

clear text box value after submit
September 05, 2012 04:26PM

Registered: 12 years ago
Posts: 131
Rating: 0

Hi Guys, Can any one help me. After inserting a value form a textbox to mysql db. the value remains (not sure how) but when I refresh the page (with the text box being empty now) it keeps entering the value provided at the start.

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77726812Lancevjm

Re: clear text box value after submit
September 05, 2012 07:46PM

Registered: 11 years ago
Posts: 100
Rating: 0

Hay

in your script you prob have

Language: PHP
value="<?PHP print $uname;?>"

in your textbox which retrieve that last value. Are you using checks to see whether your button is clicked to process your form? as in the

Language: PHP
isset($_REQUEST[';POST';])

with some conditional logic(if statements)?

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BrendonCon

Re: clear text box value after submit
September 05, 2012 11:00PM

Registered: 11 years ago
Posts: 78
Rating: 0

Could be a cache thing with the browser or a setting ... You could write a small Javascript reset function to clear the front end or as 77726812Lancevjm said you could do conditional logic if you are echoing out the values into the fields ... Are you outputting to the fields? If not then its most likely a browser setting ... What browser are you using? PHP by nature runs in the background and runs from top to bottom once as the page loads, so usually cahce-ing isn't too much of an issue with PHP ... Let's see your code?

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BrendonCon

Re: clear text box value after submit
September 05, 2012 11:03PM

Registered: 11 years ago
Posts: 78
Rating: 0

Side note for those who use chrome a lot as a dev environment, the auto-fill feature can help you breeze though forms, can even save different auto-fill profiles / values ... A good browser, firefox is also up there but sadly no auto-fill feature built into it ...

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77517296

Re: clear text box value after submit
September 06, 2012 09:25AM

Registered: 12 years ago
Posts: 131
Rating: 0

Language: PHP
<html>
<title>Manage Courses</title>
<head>
 
</head>
<?php
include';config.php';;
 
$course = " ";
 
 
if(isset($_POST[';submit';]))
{
$course = $_POST[';course';];
$course = htmlspecialchars($course);
 
$SQL = mysql_query("INSERT INTO course(cname) VALUES(';$course';)"); 
 echo "course  " .$course . "     added succesfully"; 
}
else
{
 echo "enter new course";
}
?>
 
<body>
 
<FORM NAME ="form1" METHOD ="POST" ACTION ="course_man.php">
Course Name: <INPUT TYPE = ';TEXT'; Name =';course'; value = " " size = ';25';>
<P>
<INPUT TYPE = "Submit" Name = "submit"  VALUE = "Save">
</P>
</FORM>
 
</body>
</html>

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77517296

Re: clear text box value after submit
September 06, 2012 11:40AM

Registered: 12 years ago
Posts: 131
Rating: 0

Hi Guys, Thanks for your efforts I've managed to find solution to this issue. The problem was that the cache memory wasn't cleared after the "submit" button.
So now I am refreshing the page after every "submit" event with the simple

Language: PHP
 header(';location: mypage.php';);

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BrendonCon

Re: clear text box value after submit
September 06, 2012 11:59AM

Registered: 11 years ago
Posts: 78
Rating: 0

No worries ... Seems a bit excessive to do a header redirect with PHP just to clear the form though?

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77517296

Re: clear text box value after submit
September 06, 2012 02:52PM

Registered: 12 years ago
Posts: 131
Rating: 0

The major issue here was that , the information was inserted every time you refresh the page (and I did not want those duplicate records).