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@ 2022-09-02T12:05:59Z

<?php

$barcode = ']d201070462608682672140097289158930[GS]10101656[GS]17261130';

preg_match_all('/^]d2(?:
01(?P<g01>.{14})|
10(?P<g10>(?:(?!\[GS]).){1,20})(?:\[GS]|$)|
17(?P<g17>.{6})|
21(?P<g21>(?:(?!\[GS]).){1,20})(?:\[GS]|$)
)+$/x', $barcode, $matches);

print_r($matches);

Output
Performance
VLD
References
Branches

print_r: documentation ( source)
preg_match_all: documentation ( source)

preferences:dark modelive previewkey bindings

25.6 ms | 405 KiB | 5 Q