php functions to split strings include explode() and str_split()
##explode()
This function is the inverse function of implode(). It uses one string to split another string and returns an array.Grammar:(Recommended learning:PHP video tutorial)
array explode( string separator, string string [, int limit] )
Example:
$str = 'one|two|three|four';
print_r(explode('|', $str));
print_r(explode('|', $str, 2));
// 负数的 limit（自 PHP 5.1 起）
print_r(explode('|', $str, -1));
?>
The output results are as follows:
Array
(
[0] => one
[1] => two
[2] => three
[3] => four
)
Array
(
[0] => one
[1] => two|three|four
)
Array
(
[0] => one
[1] => two
[2] => three
)
str_split()
str_split() splits the string into an array and returns an array successfully.Syntax:
array str_split( string string [, int length] )
Example:
$str = 'one two three';
$arr1 = str_split($str);
$arr2 = str_split($str, 3);
print_r($arr1);
print_r($arr2);
?>
The output is as follows:
Array
(
[0] => o
[1] => n
[2] => e
[3] =>
[4] => t
[5] => w
[6] => o
[7] =>
[8] => t
[9] => h
[10] => r
[11] => e
[12] => e
)
Array
(
[0] => one
[1] => tw
[2] => o t
[3] => hre
[4] => e
)
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