boneXXX Posted April 21, 2007 Share Posted April 21, 2007 strlen() is for strings, is there any way to use it for integers? Thanks.. Quote Link to comment Share on other sites More sharing options...
taith Posted April 21, 2007 Share Posted April 21, 2007 not that i know of... but there are workarounds... $int=332434; $str=$int.' '; echo strlen($str)-1; basically... your just turning it into a string for that purpose... and the space shouldnt affect any math you may need it for... Quote Link to comment Share on other sites More sharing options...
Glyde Posted April 21, 2007 Share Posted April 21, 2007 Or... <?php $int = 48572045; // One way to cast to a string $str = (string) $int; // Another way $str = "$int"; ?> Quote Link to comment Share on other sites More sharing options...
Tyche Posted April 21, 2007 Share Posted April 21, 2007 If I understand you correctly you want to know the number of digits in an integer The following code will give the number of digits in $n $number_of_digits= 1 + floor(log10(abs($n))); Quote Link to comment Share on other sites More sharing options...
boneXXX Posted April 21, 2007 Author Share Posted April 21, 2007 Thanks for the replies. How about a mixed value integer and char together? $str=$password.' '; $str=$int.' '; $len=strlen($str)-1; if (($len < 6) && (!preg_match("/[^a-zA-Z0-9]+$/s", $password))) { echo " Your password length should be at least 6 and contain numbers and letters"; $form_valid = 0; } How can I fix this thanks? Quote Link to comment Share on other sites More sharing options...
Glyde Posted April 21, 2007 Share Posted April 21, 2007 if (!preg_match("/[a-zA-Z0-9]{6,}$/s", $password)) { echo " Your password length should be at least 6 and contain numbers and letters"; $form_valid = 0; } You don't need to change the data type or get the length for that, regex can handle length checks as well (which is where the {6,} came from) Quote Link to comment Share on other sites More sharing options...
boneXXX Posted April 21, 2007 Author Share Posted April 21, 2007 thanks it echoes if (!preg_match("/[a-zA-Z0-9]{6,}$/s", $password)) { echo " Your password length should be at least 6 and contain numbers and letters"; $form_valid = 0; } You don't need to change the data type or get the length for that, regex can handle length checks as well (which is where the {6,} came from) Thanks for the reply. I tried it: 12345 -> Your password length should be at least 6 and contain numbers and letters 12345f -> No Echo 123456-> No Echo -> Shouldn't it echo here because no char in the password. I want to force the user to enter a integer and char mixed password with min. 6 length. Quote Link to comment Share on other sites More sharing options...
boneXXX Posted April 21, 2007 Author Share Posted April 21, 2007 if (!preg_match("/[a-zA-Z0-9]{6,}$/s", $password) || preg_match("/[0-9]{6,}$/s", $password) || preg_match("/[a-zA-Z]{6,}$/s", $password)) { echo " Your password length should be at least 6 and contain numbers and letters"; $form_valid = 0; } It works now, thanks for the help guys. Quote Link to comment Share on other sites More sharing options...
keeB Posted April 21, 2007 Share Posted April 21, 2007 Most password strength filters use a scoring system, with a baseline for the (configurable) amount of characters, integers, and 'irregular.' You define a score for each of those, and also define baseline score for a password to be accepted. Here's something I found that was written in JavaScript, which could be easily converted to PHP. /* ************************************************************ Created: 20060120 Author: Steve Moitozo <god at zilla dot us> -- geekwisdom.com Description: This is a quick and dirty password quality meter written in JavaScript so that the password does not pass over the network. License: MIT License (see below) Modified: 20060620 - added MIT License Modified: 20061111 - corrected regex for letters and numbers Thanks to Zack Smith -- zacksmithdesign.com --------------------------------------------------------------- Copyright (c) 2006 Steve Moitozo <god at zilla dot us> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. --------------------------------------------------------------- Password Strength Factors and Weightings password length: level 0 (3 point): less than 4 characters level 1 (6 points): between 5 and 7 characters level 2 (12 points): between 8 and 15 characters level 3 (18 points): 16 or more characters letters: level 0 (0 points): no letters level 1 (5 points): all letters are lower case level 2 (7 points): letters are mixed case numbers: level 0 (0 points): no numbers exist level 1 (5 points): one number exists level 1 (7 points): 3 or more numbers exists special characters: level 0 (0 points): no special characters level 1 (5 points): one special character exists level 2 (10 points): more than one special character exists combinatons: level 0 (1 points): letters and numbers exist level 1 (1 points): mixed case letters level 1 (2 points): letters, numbers and special characters exist level 1 (2 points): mixed case letters, numbers and special characters exist NOTE: Because I suck at regex the code might need work NOTE: Instead of putting out all the logging information, the score, and the verdict it would be nicer to stretch a graphic as a method of presenting a visual strength guage. ************************************************************ */ function testPassword(passwd) { var intScore = 0 var strVerdict = "weak" var strLog = "" // PASSWORD LENGTH if (passwd.length<5) // length 4 or less { intScore = (intScore+3) strLog = strLog + "3 points for length (" + passwd.length + ")\n" } else if (passwd.length>4 && passwd.length< // length between 5 and 7 { intScore = (intScore+6) strLog = strLog + "6 points for length (" + passwd.length + ")\n" } else if (passwd.length>7 && passwd.length<16)// length between 8 and 15 { intScore = (intScore+12) strLog = strLog + "12 points for length (" + passwd.length + ")\n" } else if (passwd.length>15) // length 16 or more { intScore = (intScore+18) strLog = strLog + "18 point for length (" + passwd.length + ")\n" } // LETTERS (Not exactly implemented as dictacted above because of my limited understanding of Regex) if (passwd.match(/[a-z]/)) // [verified] at least one lower case letter { intScore = (intScore+1) strLog = strLog + "1 point for at least one lower case char\n" } if (passwd.match(/[A-Z]/)) // [verified] at least one upper case letter { intScore = (intScore+5) strLog = strLog + "5 points for at least one upper case char\n" } // NUMBERS if (passwd.match(/\d+/)) // [verified] at least one number { intScore = (intScore+5) strLog = strLog + "5 points for at least one number\n" } if (passwd.match(/(.*[0-9].*[0-9].*[0-9])/)) // [verified] at least three numbers { intScore = (intScore+5) strLog = strLog + "5 points for at least three numbers\n" } // SPECIAL CHAR if (passwd.match(/.[!,@,#,$,%,^,&,*,?,_,~]/)) // [verified] at least one special character { intScore = (intScore+5) strLog = strLog + "5 points for at least one special char\n" } // [verified] at least two special characters if (passwd.match(/(.*[!,@,#,$,%,^,&,*,?,_,~].*[!,@,#,$,%,^,&,*,?,_,~])/)) { intScore = (intScore+5) strLog = strLog + "5 points for at least two special chars\n" } // COMBOS if (passwd.match(/([a-z].*[A-Z])|([A-Z].*[a-z])/)) // [verified] both upper and lower case { intScore = (intScore+2) strLog = strLog + "2 combo points for upper and lower letters\n" } if (passwd.match(/([a-zA-Z])/) && passwd.match(/([0-9])/)) // [verified] both letters and numbers { intScore = (intScore+2) strLog = strLog + "2 combo points for letters and numbers\n" } // [verified] letters, numbers, and special characters if (passwd.match(/([a-zA-Z0-9].*[!,@,#,$,%,^,&,*,?,_,~])|([!,@,#,$,%,^,&,*,?,_,~].*[a-zA-Z0-9])/)) { intScore = (intScore+2) strLog = strLog + "2 combo points for letters, numbers and special chars\n" } if(intScore < 16) { strVerdict = "very weak" } else if (intScore > 15 && intScore < 25) { strVerdict = "weak" } else if (intScore > 24 && intScore < 35) { strVerdict = "mediocre" } else if (intScore > 34 && intScore < 45) { strVerdict = "strong" } else { strVerdict = "stronger" } document.forms.passwordForm.score.value = (intScore) document.forms.passwordForm.verdict.value = (strVerdict) document.forms.passwordForm.matchlog.value = (strLog) } Quote Link to comment Share on other sites More sharing options...
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