Implementation steps of orderly splitting of php strings
Today I will tell you a few functions. Let us work together to realize the steps of orderly splitting of php string. Please see the case below
chunk_split() :函数把字符串分割为一连串更小的部分。 explode()：使用一个字符串分割另一个字符串 str_split()：将字符串分割到数组中 chunk_split()
Grammar
chunk_split(string,length,end)
Parameter Description
string Required. Specifies the string to be split.
length Optional. Numeric value defining the length of the string block. The default is 76.
end Optional. A string value that defines what to place at the end of each string block. The default is \r\n.
<!--?php $str = "Shanghai"; echo chunk_split($str,1,"."); ?--> 输入结果：S.h.a.n.g.h.a.i. explode()
This function is the inverse function of implode(). It uses one string to split another string and returns an array.
array explode( string separator, string string [, int limit] )
Parameter Description
separator split flag
string The string to be split
limit is optional, indicating that the returned array contains at most limit elements. The last element will contain the remaining part of the string, supporting negative numbers.
<!--?php $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.
? 1 array str_split( string string [, int length] )
Parameter Description
string The string to be divided
length is optional, indicating the length of each division unit, which cannot be less than 1
Example:
<!--?php $str = 'one two three'; $arr1 = str_split($str); $arr2 = str_split($str, 3); print_r($arr1); print_r($arr2); ?-->
The output results are 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
)I believe you have mastered the methods after reading these cases. For more exciting information, please pay attention to other related articles on the php Chinese website!
Related reading:
Answers to questions about camel case naming and JS
The above is the detailed content of Implementation steps of orderly splitting of php strings. For more information, please follow other related articles on the PHP Chinese website!
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