php 指定した値で埋めた配列を作成（array_fill())

$ary[0] = true
$ary[1] = true
$ary[2] = true

$ary = array_fill(0, 3, true);

$ary[5]  = banana
$ary[6]  = banana
$ary[7]  = banana
$ary[8]  = banana
$ary[9]  = banana
$ary[10] = banana

$ary = array_fill(5, 6, 'banana');

$ary[-2] = pear
$ary[0]  = pear
$ary[1]  = pear
$ary[2]  = pear

$ary = array_fill(-2, 4, 'pear');