Detailed explanation of usage based on php split() function_PHP tutorial

The basic syntax of the PHP function split() is: array split (string $pattern, string $string [, int $limit]). We give you two examples to explain in detail how to use this function.

For beginners, mastering the usage of common functions in PHP is the basis for continued learning. Today we will introduce to you in detail some methods of using the PHP function split(). We hope that you can increase your knowledge base through the content introduced in this article.
Description
array split ( string $pattern, string $string [, int $limit] )
Hint
preg_split The () function uses Perl-compatible regular expression syntax and is generally a faster alternative to the PHP function split(). If you don't need the power of regular expressions, it's faster to use explode() so you don't incur waste from the regular expression engine.
This function returns a string array, each unit is a string substring separated by the case-sensitive regular expression pattern as a boundary. If limit is set, the returned array contains at most limit cells, with the last cell containing all remaining parts of string. If an error occurs, split() returns FALSE.
Split the first four fields in /etc/passwd:
Example 1839. PHP function split() example
In-depth explanation of PHP nl2br() formatted output

Copy code The code is as follows:

If there are n items matching pattern in the string, the returned array will contain n+1 cells . For example, if pattern is not found, a one-element array is returned. Of course, this is also true if string is empty.
Parse dates that may be separated by slashes, dots, or dashes:
Example 1840. PHP function split() example

Copy code The code is as follows:

// The delimiter can be a slash, dot, or horizontal line
$date = "04/30/1973";
list($month, $day, $year) = split ('[/.-]', $date);
echo "Month: $month; Day: $day; Year: $year
n";
?>

To imitate the similar @chars = split('', $str) behavior in Perl, please refer to the examples in the preg_split() or str_split() function .
Note that pattern is a regular expression. If the delimiting character you want to use is a special character in a regular expression, you must escape it first. If you think the PHP function split() (or any other regex function) behaves strangely, please read the regex.7 file included in the regex/ subdirectory of the PHP distribution. This file is in manual page format and can be read with a command like man /usr/local/src/regex/regex.7

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