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<?php $str[] = "3543900000133243"; $str[] = "3543sssssxxxxxx23243"; $str[] = "1543344=-23-1--923243"; $pattern = "/\A3543(.+)3243\Z/"; foreach($str as $key=>$string) { if(preg_match($pattern,$string,$res)) { echo "found in $string: ".$res[1]." starts at position ".strpos($string,$res[1])."\r\n"; } else { echo "not found in $string"."\r\n"; } }
Output for git.master, git.master_jit, rfc.property-hooks
found in 3543900000133243: 90000013 starts at position 4 found in 3543sssssxxxxxx23243: sssssxxxxxx2 starts at position 4 not found in 1543344=-23-1--923243

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