Matrix and Channel Entries API

gistfile1.php

<?php

// example incoming data
$operator['online_profiles'][] = array(
  'PROFILE_TYPE' => 'facebook',
	'PROFILE_DATA' => 'http://facebook.com/foo'
);

// prep for matrix API
// field_id and col_id hardcoded
if(count($operator['online_profiles']))
{
	$i = 0;
	foreach($operator['online_profiles'] as $profile)
	{
		$data["field_id_121"]['row_order'][] = "row_new_$i";
		$data["field_id_121"]["row_new_$i"]["col_id_48"] = $profile['PROFILE_DATA'];
		$data["field_id_121"]["row_new_$i"]["col_id_49"] = $profile['PROFILE_TYPE'];
		$i++;
	}
}
...