php class to insert array of values to oracle DB - php

Question

I am trying to build a class that insert array of values into oracle database, I am also trying to make the class scalable (works with all forms of the application).
the reason am doing this is to reduce code repeating for the application am working on, because it has a lot of forms, and some of them has a lot of variables (50+).. therefore I need to make a class capable of inserting values into table, where the number of values is dynamic (depending on the form).
so far what I did is:
class ArrayQuery {
public $conn;
public $table;
public function __construct($conn){
$this->conn = $conn;
}
public function setTableName($table)
{
$this->table = $table;
}
public function InsertArray(array $args){
$keys = array_keys($args);
$values = array_values($args);
// need help here //
}
}
The construct function will get database connection, by calling the $conn object from the db_connection class (e.g $conn = new db_connection(); $query = new ArrayQuery($conn);)
setTableName is obviously for defining the desired table.
now the ArrayQuery, what I did in my form page, I named the keys of the array the same as the name of columns in table, for example array args['id']= $_post['id']. so basically array_key = column name. I did that in order to get columns name without manually setting them.
now I have 2 arrays: $keys (holds the name of columns), and $values (holds the data to be insert).
I cant figure out how to bind variables into keys? knowing that the number of variables is dynamic ?
any help will be much appreciated
UPDATE:
Here is how the $args array are set
$args = array(
'id' => $_POST['id'],
'firstname' => $_POST['firstname'],
'lastname' => $_POST['lastname'],
'email' => $_POsT['email'],
)
answer:
thanks to #calculon for putting me on the right track, with little modifications to work in my scenario, for future reference the answer to my case is:
$i=0; $col=''; $val='';
foreach ($args as $key => $value) {
if($i==0){
$col .= $key;
$val .= ':'.$key;
}
else{
$col .= ', '.$key;
$val .= ', :'.$key;
}
$i++;
}
$sql = 'INSERT INTO '.$table.' ('.$col.') VALUES ('.$val.') ';
$stmt = oci_parse($this->conn, $sql);
foreach ($args as $key => $value) {
oci_bind_by_name($stmt, $key, $args[$key]) ;
}
oci_execute($stmt);
hope it will be helpful, thanks again calculon.

Answer 1

Approximately such algorithm for inserting one row with an unknown number of columns I used in my project, for multiple rows should be added one more cycle
$i=0; $keys=''; $vals='';
foreach ($args as $key => $value) {
if($i==0){
$keys .= ''.$key;
$vals .= ':'.$key;
}
$keys .= ', '.$key;
$vals .= ', :'.$key;
$i++;
}
$sql = 'INSERT INTO '.$table.' ('.$keys.') VALUES ('.$vals.') ';
$stmt = oci_parse($conn, $sql);
foreach ($args as $key => $value) {
oci_bind_by_name($stmt, $key, $args[$key]) ;
}
oci_execute($stmt);