regex for numbers on multiple lines php
php, regex
Solution
I don't think it's even possible to do this with a single regex, but your code will be far more legible and maintainable if you approach this one step at a time.
This works, and it shouldn't be too hard to figure out how it works:
$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);
Here's the output:
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
)
Problem
I have a file that looks like this (yes the line breaks are right): ``` 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 grabs the EID tags (the numbers that start with 9000) but I can't 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 line should return `900014002326018` instead of ignoring the first and second line I am not good with regular expressions, so if you could explain so I learn and stop having to have someone help me with simple regex, that would be awesome. EDIT: The whole number is 15 digits starting with 9000