php - Using for() to update multiple rows in mysql database -


i trying update multiple rows in database. have total number of rows in table counted , bound variable:

$result = '32'

i attempt query each row:

for ($x = 0; $x <= $result; $x++) {     if ($update = $db -> prepare("update substrates set substrate_name = ?, substrate_desc = ?, substrate_base = ?, substrate_tax = ? substrate_id = ?"))     {         $substrate_name = $_post['substrate_name'];         $substrate_desc = $_post['substrate_desc'];         $substrate_base = $_post['substrate_base'];         $substrate_tax  = $_post['substrate_tax'];         $substrate_id   = $x;         $update -> bind_param('sssss', $substrate_name, $substrate_desc, $substrate_base, $substrate_tax, $substrate_id);         if ($update -> execute() == true) {             // success stuff...         }          else {             // error stuff...         }         $update -> close();     } }

my problem when run script, each row in table filled last row edited. example:

aaa | aaaaa | 1.00 | 6.35 bbb | bbbbb | 2.00 | 6.35 ccc | ccccc | 3.00 | 6.35

becomes:

ccc | ccccc | 3.00 | 6.35 ccc | ccccc | 3.00 | 6.35 ccc | ccccc | 3.00 | 6.35

how can fix script update each row individually?

try this:

for ($x = 0; $x <= $result; $x++) {     if ($update = $db -> prepare("update substrates set substrate_name = ?, substrate_desc = ?, substrate_base = ?, substrate_tax = ? substrate_id = ?"))     {         $substrate_name = $_post['substrate_name'][$x];         $substrate_desc = $_post['substrate_desc'][$x];         $substrate_base = $_post['substrate_base'][$x];         $substrate_tax  = $_post['substrate_tax'][$x];         $substrate_id   = $x;         $update -> bind_param('sssss', $substrate_name, $substrate_desc, $substrate_base, $substrate_tax, $substrate_id);         if ($update -> execute() == true) {             // success stuff...         }          else {             // error stuff...         }         $update -> close();     } }

Comments

Post a Comment

Popular posts from this blog

asynchronous - C# WinSCP .NET assembly: How to upload multiple files asynchronously -

i using winscp .net assembly uploading files. want upload multiple files asynchronous way. have created method works single upload. public class uploadingdata { private sessionoptions _sessionoptions; private session _session; //connection etc private void onconnected() { foreach (var fileinfo in localfileslist) { var task = task.factory.startnew(() => uploadfilesasync(fileinfo)); } } private async task uploadfilesasync(string file) { string remotefilepath = _session.translatelocalpathtoremote(file, @"/", "/test_data_upload"); var uploading = _session.putfiles(file, remotefilepath, false); //when done await task.run(() => thread.sleep(1000)); } } please suggest me correct way. thanks you can use backgroundworker class this: string[] images = new string[50]; foreach (var path in images) { backgroundworker
Read more

aws api gateway - SerializationException in posting new Records via Dynamodb Proxy Service in API -

i getting "__type": "com.amazon.coral.service#serializationexception" as reply in postman & in test console in api gateway trying post record directly dynamodb using api proxy services.. referring aws article - https://aws.amazon.com/blogs/compute/using-amazon-api-gateway-as-a-proxy-for-dynamodb/ here's mapping { "tablename": "tablenamegoeshere", "item": { "id" : "$context.requestid" "eventname" : "$input.path('$.eventname')", "timestamp" : $input.path('$.timestamp'), "answers": "$util.parsejson($input.path('$.answers'))" } } update: did asked ... , worked if try add array of json objects gives me above same error - here's trying now. please - couldnt find on google well #set($inputroot = $input.path('$')) { "tablename": "answer", "item": {
Read more

asp.net - Problems sending emails from forum -

i have been redesigning site has message board, has been written guy looked after site. it has few problems , written in .asp , uses .mdb files database. you can see whole thing here . feel free post if helps, test thing have set using original files , new database. the basic problem when posts message, supposed email sent them, have posted it. when replies, originator supposed message, replier has been posted. i’d have thought @ point in process there should script/file in postmessage.asp? the postmessage.asp page below. <% option explicit %> <!-- #include virtual="common/adovbs.inc" --> <html> <head> <meta http-equiv="content-type" content="text/html; charset=windows-1252"> <meta name="generator" content="microsoft frontpage 4.0"> <meta name="progid" content="frontpage.editor.document"> <title>new page 2</title> <base target="_self"
Read more