Create array with key and value in loop PHP - php

Question

I'm using PDO, and I managed to get the table columns despite the table name and create the bind variables, like in ... VALUES (:foo, :bar);.
The method I'm trying to do this is insert().
public function insert()
{
// the variable names depend on what table is being used at the moment the script runs.
// These methods use the PDO `getColumnMeta()` to retrieve the name of each column
$sql = "INSERT INTO {$this->getTableName()}({$this->getTableColumns()}) "
. "VALUES ({$this->getTableColumns(true)})";
// The previous method gets the name of each column and returns a single string, like "foo, bar, [...]"
// and this function is used to separate each word, with the specified delimiter
$col = explode(", ", $this->getTableColumns());
// Now here lays the problem.
// I already know how to retrieve the columns name as a variable, and
// how to dynamically create the get method, using `ucfirst()`
// What I need would be something like this being inside of a
// loop to retrieve all the separated words from `$col` array.
$data = array(
$col[$i] => "\$this->entity->get".ucfirst($col[$i])."()",
)
/*
* From now on, is what I need to do.
*/
// Lets pretend the column names are "foo, bar".
$data = array(
":foo" => $this->entity->getFoo(),
":bar" => $this->entity->getBar()
)
// That'd be the final array I need, and then continue with
$stm = $this->db->prepare($sql);
$stm->execute($data);
}

Answer 1

You have to loop over $data array and add function as per your requirement.
Fetch values from `... VALUES (:foo, :bar); Then explode as you did in your code , then loop over $col array and add values to $data as required
foreach($col as $val){
$method = "get".ucfirst( $val);
$data[ $val] = call_user_func(array( $this->entity,$method));
}
Above code may work as follow
$data[':foo'] = $this->entity->getFoo();
$data[':bar'] = $this->entity->getBar();