- print_r: documentation ( source)
<?php
$array [0]= ['id' => 0, 'name' => 'Teig', 'doing' => 'Test'];
$array[0][0] = ['q' => '100', 'u' => 'g', 'p' => 'wheat_flour'];
$array[0][1] = ['q' => '100', 'u' => 'g', 'p' => 'sugar'];
$array[0][2] = ['q' => '100', 'u' => 'g', 'p' => 'milk'];
$array[] = ['count' => '1', 'uidR' => '2'];
unset($array[0][1]);
print_r($array);