字符串转数组

$str = "www.baidu.com";
$str_str = str_split($str);//将字符串分割成数组
print_r($str_str);

//输出：

Array
	(
	[0] => w
	[1] => w
	[2] => w
	[3] => .
	[4] => b
	[5] => a
	[6] => i
	[7] => d
	[8] => u
	[9] => .
	[10] => c
	[11] => o
	[12] => m
	)

 

$str_str = str_split($str,3);//将字符串分割成数组，参数二将字符串从左向右每3个字符分割一次，最后的不够3个了 有几个算几个。
print_r($str_str);

//输出：

Array
	(
	[0] => www
	[1] => .ba
	[2] => idu
	[3] => .co
	[4] => m
	)

 

$strstr = explode('.',$str);//把字符串打散为数组
print_r($strstr);

//输出：

	Array
	(
	[0] => www
	[1] => baidu
	[2] => com
	)

 

$strstr = explode('.',$str,2);//把字符串打散为数组,第三个参数规定所返回的数组元素的数目。
print_r($strstr);

//输出：

Array
	(
	[0] => www
	[1] => baidu.com
	)

 

 

 

 

转载于:https://my.oschina.net/mafighting/blog/1823691