php - Record is added but category id is 0 in mysql database -


this code when submit button clicked; adds records in database, category id 0; although there categories in category table

 $db = new database();   $query = "select * categories";  $categories = $db->select($query);  if (isset($_post['submit'])) {  //assign variables   $title = mysqli_real_escape_string ($db->link,$_post['title']);   $body = mysqli_real_escape_string ($db->link,$_post['body']);   $category = mysqli_real_escape_string($db->link,$_post['category']);   $author = mysqli_real_escape_string ($db->link,$_post['author']);   $tags = mysqli_real_escape_string ($db->link,$_post['tags']);   //validate not empty      if ($title == '' || $body == '' || $category = '' || $author == '' || tags == '') {        $error = 'please fill out fields';      }     else {         $query = "insert posts (title,body,category,author,tags)            values ('$title', '$body', '$category', '$author', '$tags')" ;        $insert_row = $db->insert($query); } }

this html block issue:

 <div class="form-group">  <label>category</label>   <select name="category" class="form-control">   <?php while($row = $categories->fetch_assoc()) : ?>   <option value="<?php echo $row['id'];?>"><?php echo $row['name'];?> </option>          <?php endwhile; ?>    </select>    </div>

check if using auto_increment on category.id (or named.)

if yes, can check status of auto_increment with:

select auto_increment information_schema.tables table_name = 'categories' , table_schema = database( ) ;

or

show table status 'categories'

(btw can reset auto_increment field with:

alter table categories auto_increment = 100;

but thinking don't have auto_increment there @ all.)


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

jquery - Responsive Navbar with Sub Navbar -

good day, forgive me nav vocabulary not best. if question confusing apologize. i'm working on navigation bar needs centered on page @ 768px , above. items in nav open (or perhaps toggle) subnav lives directly below. these nav should appear centered on page. i have been able work through responsive portion of nav bar, having main items align vertically , sub nav menu of each item roll out below, , gave them indent separation. working well. however, issue not responsive side, behavior @ width greater 768px. happens toggling menu's sub navigation pushes other main items down page below sub nav. here's code: $(document).ready(function () { //stick in fixed 100% height behind navbar don't wrap $('#slide-nav.navbar-inverse').after($('<div class="inverse" id="navbar-height-col"></div>')); $('#slide-nav.navbar-default').after($('<div id="navbar-height-col"></d
Read more