匹配字符串的正则表达式包含文本双引号和方括号

Question

I am trying to extract the text between two strings with double quotes and square brackets. [gallery ids=" and "]

The format I have is:

[gallery ids="55,57,56,58,59"]

Which I would like to turn in to

55,57,56,58,59

I have tried every variety of pattern I've come across but have had no luck. Can anyone tell me what pattern would achieve this using PHP's regex functions?

Answer 1

That should work for you:

$string = '[gallery ids="55,57,56,58,59"]';
if (preg_match('/\[gallery\sids="([^"]+)"\]/', $string, $m)) {
    echo $m[1];
}

or if you want to match more than one string like that in the text, then just use preg_match_all:

if (preg_match_all('/\[gallery\sids="([^"]+)"\]/', $string, $m)) {
    print_r($m[1]);
}