最简单的拆分数据方法是使用字符串函数。字符串函数可以按照特定的分隔符将字符串拆分成多个子字符串。例如，使用PHP的explode()函数可以将字符串拆分成数组：

$string = "This is a string";

$array = explode(" ", $string);

// $array will now contain ["This", "is", "a", "string"]

此外，还可以使用正则表达式来拆分字符串，例如：

$string = "This is a string";

$array = preg_split("/\\s+/", $string);

// $array will now contain ["This", "is", "a", "string"]

此外，还可以使用字符串函数str_split()将字符串拆分成字符数组：

$string = "This is a string";

$array = str_split($string);

// $array will now contain ["T", "h", "i", "s", " ", "i", "s", " ", "a", " ", "s", "t", "r", "i", "n", "g"]