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[SOLVED] error else part

kony

By kony
in PHP Coding Help

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kony Newbie

kony

Posted
Posted
echo "<html><script type='javascript'>function check(){
card_no = document.form.card_no.value;
if(card_no.value.length < 16){
alert('card value blank');
return false;
}
if(name==""){
alert('enter your name');
return false;
}
if(exp_date==""){
alert('card value blank');
return false;
}
}</script><body>";
echo "<form name=form method='POST' action='?'>";
echo "Name  ";
echo "<input type='text' name='name' size='20'><br>";
echo "Card No.  ";
echo "<input type='text' name='card_no' size='20'><br>";
echo "Expiry Date  ";
echo "<input type='text' name='exp_date' size='20'><br>";
echo "CVV  ";
echo "<input type='text' name='cvv' size='20'><br>";
echo "Amount  ";
echo "<input type='text' name='amt' size='20'><br>";
echo "<input type='submit' name='confirm' value='Confirm' onclick='return check();'>";
echo "<input type='reset' name='reset'>";
echo "</form>";
echo "</body></html>";
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Tyche Newbie

Tyche

Posted
Posted
You haven't posted exactly what the problem is, but the first statement in your code won't work as you are not escaping the double quotes within the string - try putting \ before the internal " as below 

[code]
echo "<html><script type='javascript'>function check(){
card_no = document.form.card_no.value;
if(card_no.value.length < 16){
alert('card value blank');
return false;
}
if(name==\"\"){
alert('enter your name');
return false;
}
if(exp_date\"\"){
alert('card value blank');
return false;
}
}</script><body>";
[/code]
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kony Newbie

kony

Posted
  • Author
Posted
echo "<html><script type='text/javascript'>function check(){

len = document.form.card_no.value.length
card=document.form.card_no.value
n=0
if(len != 16 && len != 15){
alert('Enter valid card value');
return false;
}

var cardNo = document.form.card_no.value
  var cardexp = /^[0-9]{13,19}$/;
  if (!cardexp.exec(cardNo))  {
    alert('enter number only');
    return false;
  }


if(document.form.name.value.length < 1){
alert('enter ur name');
return false;
}
if(document.form.exp_date.value.length < 4){
alert('enter expiry date');
return false;
}
}</script><body>";
echo "<form name=form method='POST' action='?'>";
echo "Name  ";
echo "<input type='text' name='name' size='20'><br>";
echo "Card No.  ";
echo "<input type='text' name='card_no' size='20'><br>";
echo "Expiry Date  ";
echo "<input type='text' name='exp_date' size='20'><br>";
echo "CVV  ";
echo "<input type='text' name='cvv' size='20'><br>";
echo "Amount  ";
echo "<input type='text' name='amt' size='20'><br>";
echo "<input type='submit' name='confirm' value='Confirm' onclick='return check();'>";
echo "<input type='reset' name='reset'>";
echo "</form>";
echo "</body></html>";

if(isset($_POST['confirm'])){
$name = $_POST['name'];
$card_no = $_POST['card_no'];
$exp = $_POST['exp_date'];
$cvv = $_POST['cvv'];
$amount = $_POST['amt'];
---code---
}

javascript does not run! it has no effect on the form. it is suppose to validate the form fields.
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wildteen88 Regular Member

wildteen88

Posted
Posted
If you are echo'ing large amounts of HTML (including Javascript and CSS) use [url=http://uk2.php.net/manual/en/language.types.string.php#language.types.string.syntax.heredoc]herdoc syntax[/url]

Also rather than alerti'ing one error message at a time, show all the errors on big alert box. I have done this for you.
[code]<?php

echo <<<HTML
<html>
<head>
<script type="text/javascript">
function check() {

    var error = new Array();
    var error_msg = "";

    var frm = document.getElementById("form");

    if(frm.name.value == "") {
        error[0] = "Eenter your Name";
    }

    if(frm.card_no.value.length < 16) {
        error[1] = "Card No. left blank or is invalid";
    }

    if(frm.exp_date.value == ""){
        error[2] = "Card expirary date left blank";
    }

    if(error.length > 0) {

        for(i = 0; i <= (error.length)-1; i++) {
            if(error[i] && error[i] != "") {
                error_msg += "\\t- " + error[i] + "\\n";
            }
        }

        alert("Please fix the following errors:\\n\\n" + error_msg);

        return false;
    } else {
        return true;
    }
}
</script>
</head>
<body>

<form id="form" method="POST" action="?passed=true" onSubmit="return check();">
  Name: &nbsp; <input type="text" name="name" size="20"><br />
  Card No.: &nbsp; <input type="text" name="card_no" size="16"><br />
  Expiry Date: &nbsp; <input type="text" name="exp_date" size="20"><br />
  CVV: &nbsp; <input type="text" name="cvv" size="20"><br />
  Amount: &nbsp; <input type="text" name="amt" size="20"><br />
  <input type="submit" name="confirm" value="Confirm"> &nbsp;
  <input type="reset" name="reset">
</form>

</body>
</html>
HTML;

?>[/code]
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