php - Faster way for this mysql_query -

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$handle = fopen("stock.csv", "r");  while (($data = fgetcsv($handle, 1000, ";")) !== false) {     $model = mysql_real_escape_string ($data[0]);     $quantity = mysql_real_escape_string ($data[7]); mysql_select_db("verradt33_xoho", $link);  $quantity = str_replace("ja", "10", $quantity); $quantity = str_replace("nee", "0", $quantity);  $result = mysql_query("update dev_product      set quantity = $quantity     model = '$model'") or die(mysql_error());

even tho code works, takes long time process 7000+ lines in csv. due having replace ja or nee 10 or 0 every single line.

is there way make faster? can't touch csv file, that's hard part of course.

current load time 40 minutes.

your first question should be: is column model indexed?

secondly, try commenting out database access's , see how long takes .csv processing!

mysql_select_db("verradt33_xoho", $link); $handle = fopen("stock.csv", "r");  while (($data = fgetcsv($handle, 1000, ";")) !== false) {     $model = mysql_real_escape_string ($data[0]);     $quantity = mysql_real_escape_string ($data[7]);      $quantity = str_replace("ja", "10", $quantity);     $quantity = str_replace("nee", "0", $quantity);     /*     $result = mysql_query("update dev_product                             set quantity = $quantity                            model = '$model'")  or  die(mysql_error());     */ }

if finishes in seconds database accesses causing speed issues.

suggestion: seem changing ja , nee numerics keep simple

mysql_select_db("verradt33_xoho", $link); $handle = fopen("stock.csv", "r");  while (($data = fgetcsv($handle, 1000, ";")) !== false) {     $model = mysql_real_escape_string ($data[0]);     $quantity = mysql_real_escape_string ($data[7]);      switch ($quantity) {         case 'ja'     : $quantity = 10; break;         case 'nee'    : $quantity = 0;  break;     }      $result = mysql_query("update dev_product                             set quantity = $quantity                            model = '$model'")  or  die(mysql_error());  }

but best hope instant speed index model column.


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