php - Search MySQL database with regex substitutions -

-

i want make product search engine user types in product code , bring result, easy.

but, want able compensate numbers letters , vice versa.

e.g user types 6o12l, product code 60121.

what need put in sql query bring products 6o12l and/or 60121?

so far have isn't working, keeps bringing same result everytime no matter type in:

$searchstring = $_post['query'] ; $searchstring = preg_replace('#\w#', '', $searchstring);  $firstletter = substr($searchstring, 0, 1) ;  include("db.php") ;  $result = $dbh->prepare("select productcode                      products                      productcoderegexp '6[o0]12[1l]'                      , productcode '$firstletter%'") ; $result->execute() ;  while($row = $result->fetch(pdo::fetch_assoc)) { echo $row['productcode'].'<br />' ; }

i have managed working, have encountered new problem.

i'm using str_replace substitute letters numbers , viceversa in users query string, work 1 or other, not both:

$qstring = str_replace(array('o', 'l', '0', '1'), array('[o0]', '[1l]', '[o0]', '[1l]'), $searchstring) ;

which gives me mangled output of e.g. a[[1l]l]bc instead of a[1l]bc

do have product codes letters? can translate query string numbers before run query. that's easiest thing do, , faster testing both.


Comments

Post a Comment

Popular posts from this blog

c# - SVN Error : "svnadmin: E205000: Too many arguments" -

-
i trying reposotries using c# code process svncommand = null; var psi = new processstartinfo("svnadmin"); psi.redirectstandardoutput = true; psi.redirectstandarderror = true; psi.useshellexecute = false; psi.arguments= @"dump c:\repositories\myrepo > c:\temp\myrepodumpfile.dump"; using (svncommand = process.start(psi)) { var myoutput = svncommand.standardoutput; var myerror = svncommand.standarderror; debug.write("output :" + environment.newline + environment.newline + myoutput.readtoend() + environment.newline + "error :" + environment.newline + environment.newline + myerror.readtoend()); svncommand.close(); } when use dump command commandline svnadmin dump c:\repositories\myrepo > c:\temp\myrepodumpfile.dump it works fine when try ...
Read more

c# - Copy ObservableCollection to another ObservableCollection -

-
how copy observablecollection item observablecollection without reference of first collection? here observablecollection item value changes affecting both collections. code private observablecollection<ratemodel> _allmetalrate = new observablecollection<ratemodel>(); private observablecollection<ratemodel> _metalrateondate = new observablecollection<ratemodel>(); public observablecollection<ratemodel> allmetalrate { { return this._allmetalrate; } set { this._allmetalrate = value; notifypropertychanged("metalrate"); } } public observablecollection<ratemodel> metalrateondate { { return this._metalrateondate; } set { this._metalrateondate = value; notifypropertychanged("metalrateondate"); } } foreach (var item in metalrateondate) allmetalrate.add(item); what causing , how can solve it? you need clone object referenced item before it's a...
Read more

All overlapping substrings matching a java regex -

-
is there api method returns (possibly overlapping) substrings match regular expression? for example, have text string: string t = 04/31 412-555-1235; , , have pattern: pattern p = new pattern("\\d\\d+"); matches strings of 2 or more characters. the matches are: 04, 31, 412, 555, 1235. how overlapping matches? i want code return: 04, 31, 41, 412, 12, 55, 555, 55, 12, 123, 1235, 23, 235, 35. theoretically should possible -- there obvious o(n^2) algorithm enumerates , checks substrings against pattern. edit rather enumerating substrings, safer use region(int start, int end) method in matcher . checking pattern against separate, extracted substring might change result of match (e.g. if there non-capturing group or word boundary check @ start/end of pattern). edit 2 actually, it's unclear whether region() expect zero-width matches. specification vague, , experiments yield disappointing results. for example: string line = "xx90xx"; strin...
Read more