php分割函数

// 使用explode()函数
$str = "apple,banana,grape";
$result = explode(",", $str);
print_r($result); // 输出: Array ( [0] => apple [1] => banana [2] => grape )

// 使用str_split()函数
$str = "HelloWorld";
$result = str_split($str, 3);
print_r($result); // 输出: Array ( [0] => Hel [1] => loW [2] => orl [3] => d )

$str = "apple, banana, grape";
$result = explode(",", $str);
print_r($result); // 输出: Array ( [0] => apple [1] =>  banana [2] =>  grape )

$result = array_map('trim', explode(",", $str));
print_r($result); // 输出: Array ( [0] => apple [1] => banana [2] => grape )

$str = "apple,banana,grape";
$result = explode(",", $str);
array_unshift($result, $result[2]);
array_shift($result);
print_r($result); // 输出: Array ( [0] => grape [1] => apple [2] => banana )

$result = array_reverse(explode(",", $str));
print_r($result); // 输出: Array ( [0] => grape [1] => banana [2] => apple )