result not getting using multidimensional array - php

Question

The tool_id given here are 7 and 5 and the quantity selected are 3 and 2 respectively.When i select the tool_id of 7 i need to get changed quantity of that tool_id to 3 and when i select the tool_id of 5 i need to get changed quantity of that tool_id to 2.need to change as per the id selected please help me to solve my problem
Here is my code
$tool_id = array(7,5); //array of id
$quantity = array(3,2);//array or qty
$updateArray = array();
for($x = 0; $x < count($tool_id); $x++){
$updateArray[] = array(
'id'=>$tool_id[$x],
'available' => $quantity[$x]
);
}
$this->db->update_batch('tbl_tools',$updateArray,'id');
please help me to solve my problem
public function edit_available()
{
$tool_id=array(7,5);
var_dump($tool_id);
$quantity=array(3,2);
var_dump($quantity);
$data = array();
$i = 0;
foreach($tool_id as $t){
$data[$i]['id'] = $t;
$data[$i]['available'] = $quantity[$i];
$i++;
}
$query=$this->db->update_batch('tbl_tools', $data, 'id');
var_dump($query);
if($query)
{
return true;
}
else
{
return false;
}
}
here am having two tables namely tbl_tools and tbl_tool_use.
the tbl_tools looks as follows
id name quantity available type
5 cutting player 5 5 engineer
6 reflectors 2 2 team
7 spanner 8 8 engineer
8 tester 4 4 team
tbl_tool_use looks as follows
id user_id type tool_id quantity available start_date end_date
201 26 engineer 7,5 3,2 8available,5available 2016-12-30
here in the table tbl_tool_use the tool_id selected are 7 and 5 and for that the quantity selected are 3 and 2 respectively while inserting this data in to the this table at the same time my tbl_tools table should get reduced like this
id name quantity available type
5 cutting player 5 2 engineer
6 reflectors 2 2 team
7 spanner 8 3 engineer
8 tester 4 4 team
this is the concept for that am using that code

Answer 1

Here is your solution.
$tool_id = array(7,5); //array of id
$quantity = array(3,2);//array or qty
$arrayCombine = array_combine($tool_id, $quantity);
// var_dump($arrayCombine);
foreach ($arrayCombine as $key => $value) {
$updateArray[] = array(
'id'=>$key,
'available' => $value
);
}
$this->db->update_batch('tbl_tools',$updateArray,'id');