Need help with Password Regex

[DoubleDee]

How do I modify this so it just requires a minimum Password length of 8 characters, but no maximum?

    if (preg_match(    (?=.{8,15}$)        # Ensure Length is 8-15 Characters
                (?=.*?[A-Z])        # Check for at least 1 Upper-Case
                (?=.*?[a-z])        # Check for at least 1 Lower-Case
                (?=.*?[0-9])        # Check for at least 1 Number
                (?=.*?[\~\`\!\@\#\$\%\^\&\*\(\)\_\-\+\=\{\[\}\]\|\:\;\"\'\<\,\>\.\?\/\\\\])    # Check for at least 1 Special-Character
            ){ 

Do I just changes things to this...

    if (preg_match(    (?=.{8, }$) 

Thanks,


Debbie

[DoubleDee]

I have been playing around and came up with this...

    if (preg_match('~(?=.{8, }$)        # Ensure Length is 8 or more Characters
                (?=.*?[A-Z])        # Check for at least 1 Upper-Case
                (?=.*?[a-z])        # Check for at least 1 Lower-Case
                (?=.*?[0-9])        # Check for at least 1 Number
                                # Check for at least 1 Special-Character
                (?=.*?[\~\`\!\@\#\$\%\^\&\*\(\)\_\-\+\=\{\[\}\]\|\:\;\"\'\<\,\>\.\?\/\\\\])~', $trimmed['newPass1'])){ 

...but it is not working.


Debbie

[logic_earth]

I think you forgot to use the "x" mondifier... "~regex~x"

x (PCRE_EXTENDED)

If this modifier is set, whitespace data characters in the pattern are totally ignored except when escaped or inside a character class, and characters between an unescaped # outside a character class and the next newline character, inclusive, are also ignored. This is equivalent to Perl's /x modifier, and makes it possible to include commentary inside complicated patterns. Note, however, that this applies only to data characters. Whitespace characters may never appear within special character sequences in a pattern, for example within the sequence (?( which introduces a conditional subpattern.

[DoubleDee]

I think you forgot to use the "x" mondifier... "~regex~x"

I'm trying to piece together stuff from a simpler Regex that has been working...

I tried this, but still no go?!

    if (preg_match('~(?x)            # Comments Mode
                ^            # Beginning of String Anchor
                (?=.{8, }$)    # Ensure Length is 8 or more Characters
                (?=.*?[A-Z])    # Check for at least 1 Upper-Case
                (?=.*?[a-z])    # Check for at least 1 Lower-Case
                (?=.*?[0-9])    # Check for at least 1 Number
                            # Check for at least 1 Special-Character
                (?=.*?[\~\`\!\@\#\$\%\^\&\*\(\)\_\-\+\=\{\[\}\]\|\:\;\"\'\<\,\>\.\?\/\\\\])
                $            # End of String Anchor
                ~', $trimmed['newPass1'])){ 

Debbie

[kennard]

If all you want is a min of 8 alpha-numeric chars then

<?php

$password = "abc33";
$pattern = '/^[\da-zA-Z]{8,}$/';
$isPasswordValid = preg_match($pattern, $password);
echo $isPasswordValid;  //outputs 0 or 1
?>

[logic_earth]

The "x" goes at the very end of the regex, after "~". Without it those comments and whitespace are part of the regex.