入力
(str_splitだとなぜか文字化けするので、このようにしないといけません。)
<?php
$arr = preg_split("//u", "あいうえおかきくけこさしすせそたちつてとなにぬねのはひふへほまみむめもやゆよらりるれろわ");
var_dump($arr); // 表示のためのコード
?>
結果
array(46) { [0]=> string(0) "" [1]=> string(3) "あ" [2]=> string(3) "い" [3]=> string(3) "う" [4]=> string(3) "え" [5]=> string(3) "お" [6]=> string(3) "か" [7]=> string(3) "き" [8]=> string(3) "く" [9]=> string(3) "け" [10]=> string(3) "こ" [11]=> string(3) "さ" [12]=> string(3) "し" [13]=> string(3) "す" [14]=> string(3) "せ" [15]=> string(3) "そ" [16]=> string(3) "た" [17]=> string(3) "ち" [18]=> string(3) "つ" [19]=> string(3) "て" [20]=> string(3) "と" [21]=> string(3) "な" [22]=> string(3) "に" [23]=> string(3) "ぬ" [24]=> string(3) "ね" [25]=> string(3) "の" [26]=> string(3) "は" [27]=> string(3) "ひ" [28]=> string(3) "ふ" [29]=> string(3) "へ" [30]=> string(3) "ほ" [31]=> string(3) "ま" [32]=> string(3) "み" [33]=> string(3) "む" [34]=> string(3) "め" [35]=> string(3) "も" [36]=> string(3) "や" [37]=> string(3) "ゆ" [38]=> string(3) "よ" [39]=> string(3) "ら" [40]=> string(3) "り" [41]=> string(3) "る" [42]=> string(3) "れ" [43]=> string(3) "ろ" [44]=> string(3) "わ" [45]=> string(0) "" }