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<?php $text = "11 a b 13 begin t 899 y 50 f end 91 h"; var_export(preg_match_all('~(?:begin|\G(?!^))(?:(?!end)\D)+\K\d+~s', $text, $out) ? $out[0] : 'no matches');
Output for git.master_jit, git.master, rfc.property-hooks
array ( 0 => '899', 1 => '50', )

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