Haig Davis wrote:
Morning All,
I've been figthing with this little problem for two days now, so far no luck
with google and am beginning to question my own sanity.
I have a application that has over one hundred forms some quite lengthy so
what I'm trying to achieve rather than writing a bunch of individual
sanitize statements then form validation statemenst that I could run $_POST
through a foreach loop and filter the values by form class i.e.is it an
emaill addreess or simply a text block with letters and numbers. The regex's
alone work fine as does the foreach loop the only issue I have is the IF
statement comparing $key to expected varieable names.
Heres the bit of code envolved.
if(isset($_POST['submit'])){
foreach($_POST as $keyTemp => $valueTemp){
$key = mysqlclean($keyTemp);
$value = mysqlclean($valueTemp);
$$key = $key;
$$key = $value;
if($key != ("$customerServiceEmail") || ("$billingEmail") ||
("$website")){
if(preg_match("/[^a-zA-Z0-9\s]/", $value)){
$style = "yellow";
$formMsg = "Invalid Characters";
$bad = $key;
}
}
if($key = ("$customerServiceEmail") || ("$billingEmail")){
if(preg_match("/^([a-zA-Z0-9._%-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4})*$/",
$value)){
$style = "yellow";
$formMsg = "Invalid Characters";
$bad = $key;
}
}
}
}
Thanks for taking a peek.
Haig
1] Pear has several classes that will help you from reinventing the wheel.
2] I always, when possible, restrict what users are allowed to enter. Then, I
simply delete or warn them about anything that is not permissible. e.g., they
can enter any of the plain html tags. Any tags not in this list are removed.
//region******** Usable XHTML elements for user admin prepared user instructions
[Only these XHTML tags can be used] ********/
$inlineHtmlTagsArray = array('a', 'b', 'img', 'em', 'object', 'option',
'select', 'span', 'strong',);//Note img is both empty and inline
$blockHtmlTagsArray = array('div', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'p', 'pre',);
$emptyHtmlTagsArray = array('br', 'hr', 'img',);
$listHtmlTagsArray = array('li', 'ol', 'ul');
$tableHtmlTagsArray = array('col', 'table', 'tbody', 'td', 'th', 'thead', 'tr',);
I also do syntax and reverse DNS tests for all links and email addresses.
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