PHP program to validate the text box.
CODE:
<html>
<script>
function validateform(){
var name=document.myform.name.value;
var password=document.myform.password.value;
if (name==null)
{
alert("Name can't be blank");
}else if(password.length<6)
{
alert("Password must be at least 6 characters long.");
}
}
</script>
<body>
<form name="myform" method="post" action="vali.php" onsubmit="return validateform()" >
Name: <input type="text" name="name"><br/>
Password: <input type="password" name="password"><br/>
<input type="submit" value="register">
</form>
</body>
</html>
<script>
function validateform(){
var name=document.myform.name.value;
var password=document.myform.password.value;
if (name==null)
{
alert("Name can't be blank");
}else if(password.length<6)
{
alert("Password must be at least 6 characters long.");
}
}
</script>
<body>
<form name="myform" method="post" action="vali.php" onsubmit="return validateform()" >
Name: <input type="text" name="name"><br/>
Password: <input type="password" name="password"><br/>
<input type="submit" value="register">
</form>
</body>
</html>
OUTPUT:
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