正则表达式和 PHP - 如何匹配这个字符串？

Question

I have this string:

First part of string. Second part one: Second part two; Third part: Fourth part 2014. Available online:

The string is made in this way:

• First part of string (dot)
• Second part one (colon)
• Second part two (semicolon)
• Third part (colon)
• Fourth part
• 4 digit number (dot)
• Available online (colon)

How it is possible to split this string in an array with as described, using regex?

Thank you.

Answer 1

You probably want something like:

$array = preg_split('/\s*[:;.]\s*/', $str);

or even:

$array = preg_split('/\s*[:;.]\s*/', $str, -1, PREG_SPLIT_NO_EMPTY);

Answer 2

$string = "First part of string. Second part one: Second part two; Third part: Fourth part 2014. Available online:";
preg_match("/(.+?)\.(.+?):(.+?);(.+?):(.+?)(\d{4})\.(.+?):/",$string,$m);
print_r($m);

outputs:

Array
(
    [0] => First part of string. Second part one: Second part two; Third part: Fourth part 2014. Available online:
    [1] => First part of string
    [2] =>  Second part one
    [3] =>  Second part two
    [4] =>  Third part
    [5] =>  Fourth part 
    [6] => 2014
    [7] =>  Available online
)

Hope it'd help you.

Answer 3

Using:

([a-zA-Z ]+)\. ([a-zA-Z ]+): ([a-zA-Z ]+); ([a-zA-Z ]+): ([a-zA-Z ]+)([0-9]{4})\. ([a-zA-Z ]+):

Results in:

First part of string
Second part one
Second part two
Third part
Fourth part 
2014
Available online