- print_r: documentation ( source)
<?php
$dataAgent['Paul'] = array('Sale' => 4,'Conv' => 1.5);
$dataAgent['Bill'] = array('Sale' => 6,'Conv' => 5.5);
$dataAgent['Tom'] = array('Sale' => 1);
$dataAgent['Jake'] = array('Sale' => 6,'Conv' => 10.5);
if(array_key_exists("Conv",$dataAgent['Paul']))
{
print_r($dataAgent);
}