csv - Prevent PHP from attempting to perform mathematical calculations on a string -


so i'm using php take contents of csv file, put string array , use sql add database on ibm iseries.

however php keeps trying treat contents of string (which contains special characters "*" , "-") mathematical computation.

how prevent this?

here code in question

if (($handle = fopen($_files['uploadcsv']['tmp_name'], "r")) !== false) {   while (($data = fgetcsv($handle, 1000, ",")) !== false)     {       $length = count($data);       $s_data = implode(',', $data);       if($length > $maxcol)       {         // echo $length;         // die;         $uploadmsg = "data error: not ($maxcol) columns: ($s_data) <br>";       }       else       {             if($data[0] <> '')            {               $recda[0] = trim($data[0]); // qty = 1 roll               // prepare sql statement (possibly faster, safer, better practice)             $insertsql = "insert mikelib/pallets (pallet)                                      values($recda[0]) nc";              $stmt = db2_prepare($db2conn, $insertsql);                //$result = db2_exec($db2conn, "insert file ...$data[0]"              $result = db2_execute($stmt, $data[0]);             if(!$result)             {               $uploadmsg .= "result code: " . $result . "data error: " . db2_stmt_error() . " msg: " . db2_stmt_errormsg() . "data: ($s_data)<br>";               }             else             {             $s_data = implode(',', $recda);              $uploadmsg .= "added row ($s_data)<br>";             }           }          }     }     fclose($handle); }

here example output of error "result code: data error: 42604 msg: numeric constant 5d09c not valid. sqlcode=-103data: (a2501-0044*970*5d09c*034)"

actually, it's database parsing data math.

take @ line:

$insertsql = "insert mikelib/pallets (pallet)                                      values($recda[0]) nc"; $stmt = db2_prepare($db2conn, $insertsql);

you're putting values directly query, if query has math, or invalid symbols, it'll break query.

what should is:

$insertsql = "insert `mikelib/pallets` (pallet)                                      values(?) nc"; $stmt = db2_prepare($db2conn, $insertsql);  $recda0 = $recda[0]; db2_bind_param($stmt, 1, "recda0", db2_param_in);

that way, there's nothing in $recda[0] break query, or parsed part of query.


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