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at January 25, 2011 17:14 by aamirrajpoot
Initial Code
<?php /** * * @simple function to test password strength * * @param string $password * * @return int * */ function testPassword($password) { if ( strlen( $password ) == 0 ) { return 1; } $strength = 0; /*** get the length of the password ***/ $length = strlen($password); /*** check if password is not all lower case ***/ if(strtolower($password) != $password) { $strength += 1; } /*** check if password is not all upper case ***/ if(strtoupper($password) == $password) { $strength += 1; } /*** check string length is 8 -15 chars ***/ if($length >= 8 && $length <= 15) { $strength += 1; } /*** check if lenth is 16 - 35 chars ***/ if($length >= 16 && $length <=35) { $strength += 2; } /*** check if length greater than 35 chars ***/ if($length > 35) { $strength += 3; } /*** get the numbers in the password ***/ preg_match_all('/[0-9]/', $password, $numbers); $strength += count($numbers[0]); /*** check for special chars ***/ preg_match_all('/[|!@#$%&*\/=?,;.:\-_+~^\\\]/', $password, $specialchars); $strength += sizeof($specialchars[0]); /*** get the number of unique chars ***/ $chars = str_split($password); $num_unique_chars = sizeof( array_unique($chars) ); $strength += $num_unique_chars * 2; /*** strength is a number 1-10; ***/ $strength = $strength > 99 ? 99 : $strength; $strength = floor($strength / 10 + 1); return $strength; } /*** example usage ***/ $password = 'php_tutorials_and_examples!123'; echo testPassword($password); ?>
Initial URL
http://www.phpro.org/examples/Password-Strength-Tester.html
Initial Description
Copied it for later use hehe
Initial Title
PHP Password Strength Calculation
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PHP