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Regex for numbers on multiple lines php

I have a file that looks like this (yes, line breaks are correct):

39                                              9
30 30 30 31 34 30 30 32 33 32 36 30 31 38 0D 0A 00014002326018..
39 30 30 30 31 34 30 30 32 33 32 36 30 35 34 0D 900014002326054.
0A                                              .
39 30 30 30 31 34 30 30 32 33 32 36 30 39 31 0D 900014002326091.
0A                                              .
39 30 30 30 31 34 30 30 32 33 32 36 31 36 33 0D 900014002326163.
0A                                              .
39                                              9
30 30 30 31 34 30 30 32 33                      000140023
32 36 32 30 30 0D 0A                            26200..
39                                              9
30 30 30 31 34 30 30 32 33 32 36 32 30 30 0D 0A 00014002326200..
39 30 30 30 31 34 30 30 32 33 32 36 31 32 32 0D 900014002326122.
0A                                              .
39                                              9
30 30 30 31 34 30 30 32 33                      000140023
32 36 31 35 34 0D 0A                            26154..
39 30 30 30 31 34 30 30 32 33                   9000140023
32 36 31 33 31 0D 0A                            26131..
39                                              9
30 30 30 31 34 30 30 32 33                      000140023
32 36 31 30 34 0D 0A                            26104..
39 30 30 30 31 34 30 30 32 33 32 36 30 39 30 0D 900014002326090.
0A                                              .
39 30 30 30 31 34 30 30 32 33 32 36 31 39 37 0D 900014002326197.
0A                                              .
39                                              9
30 30 30 31 34 30 30 32 33 32 36 32 30 38 0D 0A 00014002326208..
39 30 30 30 31 34 30 30 32 33                   9000140023
32 36 31 31 35 0D 0A                            26115..
39                                              9
30 30 30 31 34 30 30 32 33                      000140023
32 36 31 36 34 0D 0A                            26164..
39                                              9
30 30 30 31 34 30 30 32 33                      000140023
32 36 30 31 36 0D 0A 39 30 30 30 31 34 30 30 32 26016..900014002
33                                              3
32 36 32 34 36 0D 0A                            26246..
39                                              9
30 30 30 31 34 30 30 32 33                      000140023
32 36 32 34 36 0D 0A                            26246..
39                                              9
30 30 30 31 34 30 30 32 33                      000140023
32 36 30 37 39 0D 0A                            26079..
39                                              9
30 30 30 31 34 30 30 32 33                      000140023
32 36 31 32 30 0D 0A                            26120..
39                                              9
30 30 30 31 34 30 30 32 33 32 36 32 32 38 0D 0A 00014002326228..
39 30 30 30 31 34 30 30 32 33                   9000140023
32 36 31 38 36 0D 0A                            26186..

I have this code that captures EID tags (numbers starting with 9000), but I cannot figure out how to get it to do multiple lines.

$data = file_get_contents('tags.txt');

$pattern = "/(\d{15})/i";

preg_match_all($pattern, $data, $tags);
$count = 0;
foreach ( $tags[0] as $tag ){

    echo $tag . '<br />';
    $count++;
}

echo "<br />" . $count . " total head scanned";

For example, the first and second rows should return 900014002326018instead of ignoring the first and second rows

I am not good at regular expressions, so if you could explain, so I find out and stop being able to help me with a simple regular expression, that would be great.

EDIT: the whole number is 15 digits, starting at 9000

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3 answers

, , , .

, , :

$eid_tag_src = <<<END_EID_TAGS
39                                              9
30 30 30 31 34 30 30 32 33 32 36 30 31 38 0D 0A 00014002326018..
39 30 30 30 31 34 30 30 32 33 32 36 30 35 34 0D 900014002326054.
  :
 etc.
  :
39 30 30 30 31 34 30 30 32 33                   9000140023
32 36 31 38 36 0D 0A                            26186..
END_EID_TAGS;

/* Remove hex data from first 48 characters of each line */
$eid_tag_src = preg_replace('/^.{48}/m','',$eid_tag_src);

/* Remove all white space */
$eid_tag_src = preg_replace('/\s+/','',$eid_tag_src);

/* Replace dots (CRLF) with spaces */
$eid_tag_src = str_replace('..',' ',$eid_tag_src);

/* Convert to array of EID tags */
$eid_tags = explode(' ',trim($eid_tag_src));

print_r($eid_tags);

:

Array
(
    [0] => 900014002326018
    [1] => 900014002326054
    [2] => 900014002326091
    [3] => 900014002326163
    [4] => 900014002326200
    [5] => 900014002326200
    [6] => 900014002326122
    [7] => 900014002326154
    [8] => 900014002326131
    [9] => 900014002326104
    [10] => 900014002326090
    [11] => 900014002326197
    [12] => 900014002326208
    [13] => 900014002326115
    [14] => 900014002326164
    [15] => 900014002326016
    [16] => 900014002326246
    [17] => 900014002326246
    [18] => 900014002326079
    [19] => 900014002326120
    [20] => 900014002326228
    [21] => 900014002326186
)
+4

:

$result = preg_replace('~\R?(?:[0-9A-F]{2}\h+)+~', '', $data);
$result = explode('..', rtrim($result, '.'));

:

\R?            # optional newline character
(?:            # open a non-capturing group
  [0-9A-F]{2}  # two hexadecimal characters
  \h+          # horizontal white characters (spaces or tabs)
)+             # repeat the non-capturing group one or more times

, , . .

, ( ) 48 , :

$result = preg_replace('~(?:^|\R).{48}~', '', $data);

, , (, 16 * 3 → 48 ), $data .

ini_set("auto_detect_line_endings", true);
$data = '';
$handle = @fopen("tags.txt", "r");
if ($handle) {
    while (($buffer = fgets($handle, 128)) !== false) {
        $data .= substr($buffer, 48, -1);
    }
    if (!feof($handle)) {
        echo "Error: fgets() has failed\n";
    }
    fclose($handle);
} else {
    echo "Error opening the file\n";
}

$result = explode ('..', rtrim($data, '.'));

. ( \r\n), substr() -2. , , .

+6

( ):

RegEx: /(?:^.{48}|\.)([0-9]+\.?)/m -

( ): , IF , 48 ( ).

:

$pattern = '/(?:^.{48}|\.)([0-9]+\.?)/m'; 

preg_match_all($pattern, $data, $tags);

//join all the bits belonging to the number
$data=implode("", $tags[1]); 

//count the dots to have a correct count of the numbers grabbed
//since each number was grabbed with an ending dot initially
$count=substr_count($data, ".");

//replace the dots with a html <br> tag (avoiding a split and a foreach loop)
$tags=str_replace('.', "<br>", $data); 

print $tags . "<br>" . $count . " total scanned";

http://3v4l.org/Z4EhI

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