Below you will find my code for a form. I am trying to do Regular expression. I have the expression but when i enter something that is not right it will still post. I believe the reason is that i am still calling the $_POST of original not taking into consideration of the regex. Any help would be great.
<html>
<head> <title> Assign 2 </title>
<style type = "text/css">
p.border
{
border-color: red;
border-style: solid;
border-width: 10px;
padding: 15px;
font-size: 65px;
color: blue;
text-align: center;
}
</style>
<script language="Javascript" type="text/javascript">
function limitText(limitField, limitNum) {
if (limitField.value.length > limitNum) {
limitField.value = limitField.value.substring
(0, limitNum);
}
function check()
{
var csat = document.entryForm.major_CSAT;
var isas = document.entryForm.major_ISAS;
if(csat.checked == true)
{
enable('CSAT_area');
}
else
{
disable('CSAT_area');
}
if(isas.checked == true)
{
enable('ISAS_area');
}
else
{
disable('ISAS_area');
}
}
function disable(toDisable)
{
elements = document.entryForm.elements;
for(var i = 0; i < elements.length; i++) {
var elementName = elements[i].parentNode.getAttribute('name');
if(elementName == toDisable)
{
elements[i].disabled = true;
elements[i].parentNode.style.color = '#999999';
}
}
}
function enable(toEnable)
{
elements = document.entryForm.elements;
for(var i = 0; i < elements.length; i++) {
var elementName = elements[i].parentNode.getAttribute('name');
if(elementName == toEnable)
{
elements[i].disabled = false;
elements[i].parentNode.style.color = '#000000';
}
}
}
</script>
</head>
<body onload="check()">
<form name="entryForm" action="crscat_resp.php"
method="post">
<p class = "border">
<b>Course Catalog Data Entry Page</b>
</P><br />
Enter your first name:
<input type="text"name="fn"maxlength="20"/><br />
Enter your last name:
<input type="text"name="ln" maxlength="20"/>
<p>
Select the department abbreviation:
<select name="dept">
<option value="ITEC">ITEC</option>
<option value="MATH">MATH</option>
<option value="STAT">STAT</option>
<option value="MGMT">MGMT</option>
<option value="MKTG">MKTG</option>
</select>
</p>
Enter the Course Number:
<input type="text"name="cn" maxlength="3"
size = "4"/><br />
Enter the Course Title:
<input type="text"name="ct" maxlength="30"
size = "40"/>
<p>
Enter the Course Description:
(max. 400 characters)<br />
<textarea rows="10" cols="50"
name ="cd"
onKeyDown="limitText(this,400);"
onKeyUp="limitText(this,400);">
</textarea>
</p>
<table border="1">
<tr>
<th colspan="2">Select the major(s)
that require this course.</th>
</tr>
<tr>
<td><input type="checkbox"name="major_CSAT"
value="CSAT" onclick="check()"/>CSAT</td>
<td><input type="checkbox"name="major_ISAS"
value="ISAS" onclick="check()"/>ISAS</td>
</tr>
<tr>
<th colspan="2">Areas of
Concentration.</th>
</tr>
<tr>
<td rowspan ="4" name="CSAT_area">
<input type="checkbox"name="con[]"
value="Compuer Science" />
Compuer Science<br />
<input type="checkbox"name="con[]"
value="Database" />
Database<br />
<input type="checkbox"name="con[]"
value="Software Engineering"
/>Software Engineering<br />
<input type="checkbox"name="con[]"
value="Networks"/>Networks<br />
</td>
<td name="ISAS_area">
<input type="checkbox"name="con[]"
value="Information Systems"/>
Information Systems<br />
<input type="checkbox"name="con[]"
value="Web Development" />
Web Development<br /><br /><br />
</td>
</tr>
</table>
<p>
<input type="submit" value="Submit New Course Entry" />
<input type="reset" value="Reset Form" />
</p>
</form>
<h2>Source Code</h2>
<p>
<?php
show_source(__FILE__);
?>
</p>
</body>
</html><?php
ini_set('display_errors',1);
error_reporting(E_ALL | E_STRICT);
?>
<html>
<head>
<style type = "text/css">
p.border
{
border-color: black;
border-style: solid;
}
p.tborder
{
border-color: green;
border-style: solid;
border-width: 10px;
padding: 15px;
font-size: 65px;
color: black;
text-align: center;
}
.error { color: red; }
</style>
</head>
<body>
<?php
$fn = trim($_POST['fn']);
$ln = trim($_POST['ln']);
$dept = trim($_POST['dept']);
$cn = trim($_POST['cn']);
$ct = trim($_POST['ct']);
$cd = trim($_POST['cd']);
$dn = $dept . ' ' . $cn;
$okay = TRUE;
if (empty($_POST['fn'])) {
print '<p class="error">Please enter
your first name.</p>';
$okay = FALSE;
}
if (preg_match("/[a-zA-Z]+/",$fn));
else print '<p class="error">
Please only use letters<br /></p>';
if (empty($_POST['ln'])) {
print '<p class="error">Please enter
your last name.</p>';
$okay = FALSE;
}
if (preg_match("/[a-zA-Z]+/",$ln));
else print '<p class="error">
Please only use letters<br /></p>';
if (empty($_POST['cn'])) {
print '<p class="error">Please enter
a course number.</p>';
$okay = FALSE;
}
if (preg_match("/^[0-9]{100,499}+/",$cn));
else print '<p class="error">
Please only use 100 - 499 <br /></p>';
if (empty($_POST['ct'])) {
print '<p class="error">Please enter
the course title.</p>';
$okay = FALSE;
}
if (empty($_POST['cd'])) {
print '<p class="error">Please enter
a course description.</p>';
$okay = FALSE;
}
?>
<p class ="tborder">
<b>Course Catalog System</b>
</p>
<p class = "border">
<?php
print ("$dn <br />");
if (preg_match("/[a-zA-Z]+/",$ct));
else print 'Please only use letters<br />';
print strtoupper("$ct");
?>
</p>
<p class = "border">
<?php
print ("<u>Course Description</u> <br />
$cd");
?>
</p>
<?php
print("IT Majors and Areas of Concentration
that require this course. <br />");
//$majorCheck = $_POST["major_ISAS"].$_POST["major_CSAT"];
if(isset($_POST["con"]) && (isset($_POST["major_ISAS"]) || isset
($_POST["major_CSAT"])))
{
$con = $_POST['con'];
if(isset($_POST["major_ISAS"]))
{
$areaCount = 0;
$majorAreas = Array("Information Systems","Web Development");
foreach($con as $mc)
{
if(in_array($mc, $majorAreas))
{
print "ISAS-$mc<br />\n";
$areaCount++;
}
}
if($areaCount == 0)
{
print ('<p class="error">Please choose select
an area of concentration for this major</p>');
}
}
if(isset($_POST["major_CSAT"]))
{
$areaCount = 0;
$majorAreas = Array("Computer Science","Database",
"Software Engineering","Networks");
foreach($con as $mc)
{
if(in_array($mc, $majorAreas))
{
print "CSAT-$mc<br/ >\n";
$areaCount++;
}
}
if($areaCount == 0)
{
print ('<p class="error">Please choose select
an area of concentration for this major</p>');
}
}
}
else
{
print '<p class="error">Please select at
least one major and concentration!</p>';
}
?>
<h2>Source Code</h2>
<?php
show_source(__FILE__);
?>
</body>
</html>