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<?php //I want the 'delimX' to be included as well: $str = "It seems entirely 1 (b natural b) to us that there are teams of scientists in universities and other institutions around the world, attempting to 2 (b discover b) the way the world works. However, it hasn't always been that 3 (b way b) . Although the scientific method is now four or five hundred years old, the ancient Greeks, for example, believed that they could work out the 4 (b causes b) of natural events just by the power of thought."; $result = preg_split ('~(\(b.*?b\))~',$str ,-1, PREG_SPLIT_DELIM_CAPTURE); var_dump($result);
Output for git.master, git.master_jit, rfc.property-hooks
array(9) { [0]=> string(20) "It seems entirely 1 " [1]=> string(13) "(b natural b)" [2]=> string(115) " to us that there are teams of scientists in universities and other institutions around the world, attempting to 2 " [3]=> string(14) "(b discover b)" [4]=> string(64) " the way the world works. However, it hasn't always been that 3 " [5]=> string(9) "(b way b)" [6]=> string(146) " . Although the scientific method is now four or five hundred years old, the ancient Greeks, for example, believed that they could work out the 4 " [7]=> string(12) "(b causes b)" [8]=> string(48) " of natural events just by the power of thought." }

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