php - Mysqli multi query not working, despite appearing correctly formed -


i'm working on php function interacts database add specializations particular user. figured using mysqli multi query best way go accomplishing this. unfortunately none of code queries executing correctly. db connection working without hitch, , individual queries when typed databases web app work.

function assign_specialties($id, $specialties) {     $conn = new mysqli($globals['servername'], $globals['username'], $globals['password'], 'visio');     if ($conn->connect_error) {        die("$conn->connect_errno: $conn->connect_error");     }     $query = "";     $id = mysqli_real_escape_string($conn, $id);     foreach ($specialties $specialty) {         $specialty = mysqli_real_escape_string($conn, $specialty);         $query .= " insert member_specialization (member_id, specialization_name) values ('$id', '$specialty');";     }     //$query = mysqli_real_escape_string($conn, $query);     if ($conn->multi_query($query)) {         echo "<script> alert('yes')</script>";     }     else {         echo "<script> alert('$query')</script>";     }      $conn->close(); }

i have each query seperated semicolon. first time i've tried multi query know has user error, can't figure out error is.

http://php.net/manual/en/mysqli.multi-query.php

data inside query should escaped.

you using mysqli_real_escape_string() on entire query, string needs escaped variable $specialty.

additionally you're using both procedural style , object oriented style in function. whichever style prefer practice consistent.

$query = ""; foreach ($specialties $specialty) {     $specialty = mysqli_real_escape_string($conn, $specialty);     $query .= "insert member_specialization               (member_id, specialization_name)                values               ('$id', '$specialty');"; }  mysqli_multi_query($conn, $query);

Comments

Post a Comment

Popular posts from this blog

Is there a better way to structure post methods in Class Based Views -

i'm using class based views in django , never specify url in ajax calls , omit action parameter in form because know these requests go through post method of class based view. notice view - profile page make many requests depending on user updating on page - post method become convoluted , if/else mess example: def post(self, request, *args, **kwargs): # handle user changing available date if request.post.get('availabledate') != none: self.updateavailabledate(request) return jsonresponse({'result':'success'}) if request.post.get('newprojectname') != none: creative_user = creativeuserprofile.objects.get(id = request.user.id) project = project.create_project(creative_user, request.post['newprojectname']) project.save() return jsonresponse({'projectid': project.id }) if request.post.get('projectimage') != none , request.files['file']: proj...
Read more

performance - Why is XCHG reg, reg a 3 micro-op instruction on modern Intel architectures? -

i'm doing micro-optimization on performance critical part of code , came across sequence of instructions (in at&t syntax): add %rax, %rbx mov %rdx, %rax mov %rbx, %rdx i thought had use case xchg allow me shave instruction , write: add %rbx, %rax xchg %rax, %rdx however, dimay found agner fog's instruction tables , xchg 3 micro-op instruction 2 cycle latency on sandy bridge, ivy bridge, broadwell, haswell , skylake. 3 whole micro-ops , 2 cycles of latency! 3 micro-ops throws off 4-1-1-1 cadence , 2 cycle latency makes worse original in best case since last 2 instructions in original might execute in parallel. now... cpu might breaking instruction micro-ops equivalent to: mov %rax, %tmp mov %rdx, %rax mov %tmp, %rdx where tmp anonymous internal register , suppose last 2 micro-ops run in parallel latency 2 cycles. given register renaming occurs on these micro-architectures, though, doesn't make sense me done way. why wouldn't register renamer ...
Read more

c# - Asp.net web api : redirect unauthorized requst to forbidden page -

im trying redirect unauthorized request forbidden page instead i'm getting forbidden page in response body , how can fix ? here's startup class : app.createperowincontext(storecontext.create); app.createperowincontext<applicationusermanager>(applicationusermanager.create); app.createperowincontext<applicationsigninmanager>(applicationsigninmanager.create); app.usecookieauthentication(new cookieauthenticationoptions { authenticationtype = defaultauthenticationtypes.applicationcookie, expiretimespan = timespan.fromdays(30), }); app.useexternalsignincookie(defaultauthenticationtypes.externalcookie); app.usetwofactorsignincookie(defaultauthenticationtypes.twofactorcookie, timespan.fromminutes(5)); app.usetwofactorrememberbrowsercookie(defaultauthenticationtypes.twofactorrememberbrowsercookie); the method im trying reach : [httpget] [authorize(roles = "admin")] public string getcurrentusername() { return userman...
Read more