password strength script

[chris_s_22]

ok the plan for this scriopt is that when someone types in the password feild it tells you how strong it is, it it contains a lower case it is given a + 1 rating, if there is a upprcase enter again given a + 1 rating, again with a number a + 1 rating is given.

 

now the part where im going wrong if one of these characters is entered i want it to have a + 1 rating

!"£$%^&*()-_=+#~'@;:/?.>,<\|`¬

as u can see what ive got it currently but is this right or what should it be to achieve my goal. or is my code fie and have gone wrong somewhere else?

 

then in the end the total score is added up and the echo for the accumlative points is displayed

<?php 
$do = $_GET['do']; 
switch($do) { 
    case 'check_password_strength': 
        $password = $_GET['pass']; 
        $strength = 0; 
        // letters (lowercase) 
        if(preg_match("/([a-z]+)/", $password)) { 
            $strength++; 
        } 
        // letters (uppercase) 
        if(preg_match("/([A-Z]+)/", $password)) { 
            $strength++; 
        } 
        // numbers 
        if(preg_match("/([0-9]+)/", $password)) { 
            $strength++; 
        } 
        // non word characters 
        if(preg_match("/(W+)/", $password)) { 
            $strength++; 
        } 
        header('Content-Type: text/xml'); 
        header('Pragma: no-cache'); 
        echo '<?xml version="1.0" encoding="UTF-8"?>'; 
        echo '<result><![CDATA['; 
        switch($strength) { 
            case 1: 

                echo '<div style="width: 25%" id="password_bar">Very Weak</div>'; 
            break; 
            case 2: 
                echo '<div style="width: 50%" id="password_bar">Weak</div>'; 
            break; 
            case 3: 
                echo '<div style="width: 75%" id="password_bar">Strong</div>'; 
            break; 
            case 4: 
                echo '<div style="width: 100%" id="password_bar">Very Strong</div>'; 
            break; 
        } 
        echo ']]></result>'; 
    break; 
    default: 
        echo 'Error, invalid action'; 
    break; 
} 
?> 

[chris_s_22]

please someone help it driving me insane

 

the bit what isnt working is the non characters

 

if non characters are entered into the password feild it doesnt add to the stregth

 

uppper cases,lower cases and numbers all do

[Mark Baker]

"/(W+)/"

W is matching for the letter W

I suspect you mean

"/(\w+)/"

[DeanWhitehouse]

Please wait at least 12 hours before bumping threads, no thread is more important than the next

[chris_s_22]

i already tried

 

if(preg_match("/(w+)/", $password)) {

 

 

[Mark Baker]

i already tried

if(preg_match("/(w+)/", $password)) {

Reread what I wrote carefully, looking for \

You're trying to match word characters, not the letter w

 

And you should be testing for the negative. You're after characters that aren't word characters

 

[chris_s_22]

{quote]Reread what I wrote carefully, looking for \

You're trying to match word characters, not the letter w

 

And you should be testing for the negative. You're after characters that aren't word characters

 

sorry i missed that tanks it working the way i want it to now thx