dongyang9813 2013-08-07 21:19
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从strpos值数组中提取子字符串

I have the following string

$string = "Hello World!<br />- 8/7/2013<br />Content<br />- 8/6/2013<br />Hello World";

I want to extract all the information between the dash + space ("- ") and the next line break tag. Is that possible? I've been researching Google for hours but no luck. I'm thinking that I need an array of strpos of the "- " and the following line break tag and then batch substr them. But of course if you can do this any other way, that would be so much appreciated!

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  • dongtaigan1594 2013-08-07 21:26
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    I've updated my answer to handle multiple occurances.

    You can do this with a simple regular expression:

    preg_match_all("@- (.*)<br />@U", $string, $matches);
    print_r($matches[1]);
    

    The above will print

    Array
    (
        [0] => 8/7/2013
        [1] => 8/6/2013
    )
    

    This matches the pattern - (.*)<br /> with (.*) meaning anything. The @s here work as delimiters to separate the actual pattern with the modifiers (in this case U meaning an ungreedy match).

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