Retrieving values from MySQL using php -


here have made mysql has columns of "id","name","username","email",age" . made the php code retrieve data given id.

eg:if user enter id=3 shows datas corresponding id.

but want set multiple inputs user can type more 1 id , list corresponding datas of particular id.

my php code:

<?php   if($_server['request_method']=='get'){      $id  = $_get['id'];         require_once('dbconnect.php');      $sql = "select * user id='".$id."'";      $r = mysqli_query($con,$sql);      $result = array();              while($res = mysqli_fetch_array($r)){      array_push($result,array(         "id"=>$res['id'],         "name"=>$res['name'],         "username"=>$res['username'],         "email"=>$res['email'],          "age"=>$res['age']         )     );             }     echo json_encode(array("result"=>$result));      mysqli_close($con);  }

now url gives perfect result: "http://www.allwaysready.16mb.com/sort.php?id=4"

now how can corresponding values multiple id's?

you can use array syntax pass multiple ids script , use mysql's in() query against them @ once.

url: http://www.allwaysready.16mb.com/sort.php?id[]=4&id[]1&id[]=2

$ids = $_get['id']; $ids = array_map(function($id) {     return (int) $id; }, $ids); $ids = implode(',', $ids);  $sql = "select * user work in($ids);

i cast ids integers because current code wide open sql injection. should using paramterized queries.


Comments

Post a Comment

Popular posts from this blog

jOOQ update returning clause with Oracle -

according http://www.jooq.org/doc/3.8/manual/sql-building/sql-statements/update-statement/ jooq doesn't support returning clause in update statements databases except firebird , postgres. does know, still correct oracle jooq? according oracle's documentation, oracle db supports returning clase delete, insert, or update statements. incorrect manual you're right - manual wrong , should fixed: https://github.com/jooq/jooq/issues/5470 single row update returning jooq 3.8 added support single row update .. returning statements. internally, uses callablestatement , pl/sql block of form: begin update "my_table" set "my_table"."column" = 'xyz' "my_table"."id" = 1 returning "my_table"."id", "my_table"."column" ?, ?; ? := sql%rowcount; end; the relevant issue is: https://github.com/jooq/jooq/issues/5190 multi row update returning a...
Read more

java - Warning equals/hashCode on @Data annotation lombok with inheritance -

i have entity inherits other. on other hand, i'm using lombok project reduce boilerplate code, put @data annotation. annotation @data inheritance produces next warning: generating equals/hashcode implementation without call superclass, though class not extend java.lang.object. if intentional, add '@equalsandhashcode(callsuper=false)' type. is advisable add annotation @equalsandhashcode (callsuper = true) or @equalsandhashcode (callsuper = false) ? if not added, 1 callsuper=false or callsuper=true ? the default value false . 1 if don't specify , ignore warning. yes, recommended add @equalsandhashcode annotation on @data annotated classes extend else object. cannot tell if need true or false , depends on class hierarchy, , need examined on case-by-case basis. however, project or package, can configure in lombok.config call super methods if not direct subclass of object. lombok.equalsandhashcode.callsuper = call for configuration system ...
Read more

java - BasicPathUsageException: Cannot join to attribute of basic type -

i using java 8 jpa (hibernate 5.2.1). have clause works perfectly, until introduce clause make use foreign key table values too. i getting following error: basicpathusageexception: cannot join attribute of basic type i think problem related fact have join table, , not sure how create join using join table. employee - employee_category - category model (employee.java): @manytomany(cascade = cascadetype.all, fetch=fetchtype.eager) @jointable ( name="employee_category", joincolumns={ @joincolumn(name="emp_id", referencedcolumnname="id") }, inversejoincolumns={ @joincolumn(name="cat_id", referencedcolumnname="id") } ) private set<category> categories; model (category.java): @id private string id; jpa when introduce following code, fails error above (i think problem new piece of code): join<t, category> category = from.join("id"); predicates.add(criteriabuilder.like(category....
Read more