Swipe card code

[m4ttphpnewb]

Can anyone help me with a code to remove % and ? characters from a text box when a card is swiped through the reader. For example "%ABC?" needs to be changed to "ABC"

 

Thanks!

[Isityou]

str_replace('%', '')

str_replace('?', '')

[PHP Monkeh]

If you're wanting them to be removed from the text box rather than PHP replacing them, you're going to have to look at Javascript.  I believe most card readers try to press enter or submit once the card has been scanned, so you could look at some Javascript events for that

[m4ttphpnewb]

Ok thank you I will look around.

[m4ttphpnewb]

ok I have tried a few things with the str_replace() function and can't seem to get it to work with my text box. this is my last thing to fix on my page and it is driving me nuts.(I had to change script to scrip t to post it in the forum)

  $fullname =  str_replace('%','',$fullname) ;
$fullname =  str_replace('?','',$fullname);
echo "               <input type='text' name='left_fullname' id='textbox1' >
	<scrip t>document.getElementById('textbox1').focus()</scrip t>\n";
if (!$fullname) {
            echo "    <td align=left class=right_main scope=col>\n";
            echo "      <table width=100% height=100% border=0 cellpadding=10 cellspacing=1>\n";
            echo "        <tr class=right_main_text>\n";
            echo "          <td valign=top>\n";
            echo "<br />\n";
            echo "You have not chosen a username. Please try again\n";
            include 'footer.php';
            exit;
        }
@$fullname = addslashes($fullname);

 

 

[PHP Monkeh]

What does the card reader output to the text box currently?  Is it always characters only or are there numbers aswell?

[m4ttphpnewb]

it outputs  %xyz?  to the text box

[m4ttphpnewb]

I have been testing it with a card encoded as  %DEMO1000?  I need it to read in the text box as DEMO1000 so the database recognizes it

[PHP Monkeh]

Are you bothered about the values within the text box?  Because once you submit the form we can let PHP take care of the odd symbols, or would you prefer to use Javascript to get rid of the % and ? as soon as it's swiped.

[m4ttphpnewb]

i am not bothered by the values in the box, i just need them gone to submit

[PHP Monkeh]

Ok then, go to the part of your page where you process the submission.

 

Then you can remove the % and ? by doing this:

 

$fullname=$_POST['left_fullname'];
$fullname=  str_replace('%','',$fullname) ;
$fullname =  str_replace('?','',$fullname);

 

That'll remove all % and ? within the textbox after it's submitted, and then you can insert/update your database

[m4ttphpnewb]

no go,  maybe because of this at the beginning of my page?

if ($request == 'POST'){
  
    @$fullname = stripslashes($_POST['left_fullname'])};

[m4ttphpnewb]

got it! (with your help !!)

if ($request == 'POST'){
    
    @$fullname = stripslashes($_POST['left_fullname']);
    @$fullname=  str_replace('%','',$fullname) ;
    @$fullname =  str_replace('?','',$fullname);}

 

 

[m4ttphpnewb]

any idea on how to make it not auto submit when swiped?

for now i think I will just move  it beneath the buttons and change the buttons so they don't submit then have the whole thing submit with the card swipe.

[PHP Monkeh]

It's just what card readers usually do I'm afraid.  They automate Enter I think once they've finished swiping, which is what will be submitting the form (probably the first submit button too).  There may be a setting that you can change on the card reader though - so that it doesn't auto submit.

[m4ttphpnewb]

hahah I will beat the card reader! (against the wall till it stops auto entering) nope I will work  on a work around and post back when I have  out smarted  the little piece of hardware, thanks for helping me out so much  Im beginning to feel my way around the code much better