How to update multiple rows php -


i want update multiple rows

this html code :

<form action="" method="post"> <input type="text" name="name" placeholder=""/> <input type="text" name="phone" placeholder=""/> <input type="text" name="blood" placeholder=""/> <input type="text" name="id" placeholder=""/> <input type="text" name="email" placeholder=""/> <input type="submit" name="sub" value=""/> </form>

and php code :

  if(isset($_post['sub'])) {     $name = $_post['name'];     $phone = $_post['phone'];     $blood = $_post['blood'];     $id = $_post['id'];     $email = $_post['email'];     if($name or $phone or $blood or $id or $email) {       $res_11 = mysql_query("update `general_info` set `name`='$name',`phone`='$phone',`blood`='$blood',`id_2`='$id',`email`='$email'  `id`='1'") or die(mysql_error());     }   }else{     echo "error";   }

i have table this

name | phone | blood

and want if body update 1 row update

if write new phone update phone in database

try code:

 if(isset($_post['sub'])) {      $subquery = "";      if(isset($_post['name']) && $_post['name'] != "") {          $subquery .= " name = '". $_post['name'] ."',";                 $name = $_post['name'];      }      if(isset($_post['phone']) && $_post['phone'] != "") {          $subquery .= " phone = '". $_post['phone'] ."',";                  $phone = $_post['phone'];      }      if(isset($_post['blood']) && $_post['blood'] != "") {          $subquery .= " blood = ". $_post['blood'] .",";                  $blood = $_post['blood'];      }       if(isset($_post['email']) && $_post['email'] != "") {          $subquery .= " email= '". $_post['email'] ."',";                  $email = $_post['email'];      }      if(isset($_post['id']) && $_post['id'] != "") {          $subquery .= " id_2 = '". $_post['id'] ."',";                  $id = $_post['id'];      }      if($name or $phone or $blood or $id or $email) {       $res_11 = mysql_query("update `general_info` set ". substr($subquery, 0, -1) ."  `id`='1'") or die(mysql_error());     }   }else{     echo "error";   }

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