Detecting special chars

[Anon]

Hi,

I'm trying to detecte whether or not a string contains som special chars, but it won't work... pleasy help.

Code:
function specialtegnsCheck($text)
{
$errChars="½§!@#£¤$%&/{([)]";

for ($i=0; $i<strlen($errChars); $i++)
{
if (strpos($text, substr($errChars, $i, 1))===0)
return 0;
}

return 1;
}

$ok = specialtegnsCheck("X%X", $ok);

if ($ok==0)
print "ErrChar found!";

---

Why doesn't this print ErrChar found??
I've tried with == instead of ===, but that doesn't work either...

Sincerely,
Kenneth

[brandonschnell]

change:

if (strpos($text, substr($errChars, $i, 1))===0)

to:
if ((string)strpos($text, substr($errChars, $i, 1)) != "")

[Anon]

Hello!

It is simpler to play with the sscanf parameters.. i used this to check weather the password is valid:

$n = sscanf( $np1, "%[a-z0-9]", &$passStr );
if( $np1 != $passStr )
{
echo "Sorry. Invalid password format."; exit;
}

you can add more conditions on ssacnf. to learn more about sscanf parameters, please look into the php online manual.

Best regards, Shakil