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This article mainly introduces the use of preg_split function in PHP to split strings containing newlines and semicolons. It has certain reference value. Now I share it with you. Friends in need can refer to it
preg_ split() Function is used to split strings using regular expressions. Its main difference from the split() and explode() functions is:
split()Function: Use regular expressions to split the string and return an array, if an error occurs, false.
preg_split() Function : Uses Perl-compatible regular expression syntax, usually faster than split() .
explode()Function: Use one string to split another string, usually faster than the above two functions.
preg_ split() The syntax of the function is:
array preg_split( string pattern, string subject [, int limit [, int flags]] )
Parameter description:
| Parameters | Description |
|---|---|
| pattern | Regular expression |
| subject | Objects that need to be matched for splitting |
| limit | Optional, if specified limit, then at most limit substrings will be returned, if limit is -1 means there is no limit and can be used to continue specifying optional parameters flags
|
| flags | Settings limit is optional after -1, and can be any combination of the following tags (combined with the bitwise OR operator |):
|
这样，我们就有了按换行符和分号分割字符串的方法了。
$result = preg_split('/[;\r\n]+/s', $value); // 返回数据保存在$result数组中其中：
\r 表示：回车符(ACSII：13 或0x0d)，就是我们常说的硬回车。
\n 表示：换行(ACSII：10 或0x0a)，就是我们常说的软回车。
分号就不用说了吧：）
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