Generate Codes

[cyrixware]

Hi i just want to know how to create or generate codes in php.

 

ex. ||textbox|| 'Enter the codes shown below'

 

Any idea is highly appreciated. Thanks.

[teng84]

you mean something like captcha codes.. an image generated to minimize spam?

[unsider]

Similar to the images on registration forms?

[cyrixware]

yep something like that.... before you can finish the regstration you must enter first the codes shown on the screen. (note: codes not in image form, something generated in database)

[unsider]

You write a script that jus generates random string of #/letters, and then outputs that wherever you want?

 

Then have a script check that generated code matches what the user has input.

 

Google a tutorial if thats all you want..

[teng84]

oh men... from DB? weird 

maybe try this first

<?php
// create a 100*30 image
$im = imagecreate(100, 30);
// white background and blue text
$bg = imagecolorallocate($im, 200, 200, 200);
$textcolor = imagecolorallocate($im, 0, 0, 255);
// write the string at the top left
$array = range('A','Z');
$array2 = range(0,9);
$newarray = array_merge($array2,$array);
shuffle($newarray);
foreach($newarray as $val){
    ++$x;
    $value .=$val ;
    if($x == 7){
        break;
    }
}
imagestring($im, 5, 20, 5,$value, $textcolor);
// output the image
header("Content-type: image/png");
imagepng($im);
?>

 

simple but that should work

[cyrixware]

oh men... from DB? weird 

maybe try this first

<?php
// create a 100*30 image
$im = imagecreate(100, 30);
// white background and blue text
$bg = imagecolorallocate($im, 200, 200, 200);
$textcolor = imagecolorallocate($im, 0, 0, 255);
// write the string at the top left
$array = range('A','Z');
$array2 = range(0,9);
$newarray = array_merge($array2,$array);
shuffle($newarray);
foreach($newarray as $val){
    ++$x;
    $value .=$val ;
    if($x == 7){
        break;
    }
}
imagestring($im, 5, 20, 5,$value, $textcolor);
// output the image
header("Content-type: image/png");
imagepng($im);
?>

 

simple but that should work

 

Thanks Bro.

[teng84]

yan ba yun? ungas namn tanong mo pre...

your question is very unclear but nice to know that helps..

[cyrixware]

yan ba yun? ungas namn tanong mo pre...

your question is very unclear but nice to know that helps..

What i mean is the codes shown is from database stored as what unsider says.... hehehe 

[teng84]

then just replace the randomized letters and num there with your DB info