PHP foreach to make query - php

Question

I have an array like this
Array ( [12313] => 1 [12312] => 1 ) 1
The array keys are the items that exist in the warehouse and values are the number of items.
I would like to check if the items and amounts actually exist in the warehouse database using php. I thought maybe I could use a foreach for each item check but I don't know how to use foreach. I would like to make a query like:
$query=$this->db->query("SELECT COUNT(*) as amount FROM warehouse where item=12313");
$check=$query->row_array();
$amt=$check['amount'];
if($amt>0){
return true;
}
else{
return false;
}

Answer 1

$array=array ( '12313' => 1,'12312' => 1 );
foreach($array as $k=>$val)
{
$query=$this->db->query("SELECT COUNT(*) as amount FROM warehouse where item='".$k."'");
$check=$query->row_array();
$amt=$check['amount'];
if($amt>0){
return true;
}
else{
return false;
}
}

Answer 2

Are you looking for something like:
$items = array(
12313 => 1,
12312 => 1,
);
foreach ( $items as $key => $value ) : //iterate over array
$query = "SELECT COUNT(*) as amount FROM warehouse where item = $key";
$check = $query->row_array();
$amt = $check['amount'];
if( $amt>0 ) {
return true;
}
else {
return false;
}
endforeach;

Answer 3

try this
$arr = array("[12313]" => "1" ,"[12312]" => "2");
foreach ($arr as $key=>$value) {
$query="SELECT COUNT(*) as amount FROM warehouse where item='".$key."'";
$check=$query->row_array();
$amt=$check['amount'];
if($amt>0){
return true;
}
else{
return false;
}
}

Answer 4

$array = array('12313' => 1, '12312' => 1);
foreach ($array as $key => $value) {
$this->db->select('COUNT(*) as amount');
$this->db->from('warehouse');
$this->db->where('item', $key);
$result = $this->db->get()->row_array();
return ($result['amount'] >= $value) ? TRUE : FALSE; //match no of items
// return ($result['amount'] > 0) ? TRUE : FALSE; //OR if just check the count
}