Question 40810 in PHP Question posted in
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PHP regex match SKU (several patterns) in string

There are names of records in which are mixed several types of SKU that may contains symbols, digits, etc.

Examples:

Name of product 67304-4200-52-21
67304-4200-52 Name of product
67304-4200 Name of product
38927/6437 Name of product
BKK1MBM06-02 Name of product
BKK1MBM06 Name of product

I need to preg_match (PHP) only SKU part with any symbols in any combinations.

So i wrote pattern:

/d+/d+|d+-?d+-?d+-?d+|bbkk.*b/i

It works but not with [BKK*] SKU.

Is it way to combine all this types of SKU together in one pattern?

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2

Answers


  1. 0

    Use

    d+(?:d+(?:-?d+){3}|/d+)|b[bB][kK][kK][A-Za-z0-9-]*

    See regex proof.

    REGEX101 EXPLANATION

    1st Alternative d+(?:d+(?:-?d+){3}|/d+)
d matches a digit (equivalent to [0-9])
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
Non-capturing group (?:d+(?:-?d+){3}|/d+)
1st Alternative d+(?:-?d+){3}
d matches a digit (equivalent to [0-9])
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
Non-capturing group (?:-?d+){3}
{3} matches the previous token exactly 3 times
- matches the character - with index 4510 (2D16 or 558) literally (case sensitive)
? matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy)
d matches a digit (equivalent to [0-9])
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
2nd Alternative /d+
/ matches the character / with index 4710 (2F16 or 578) literally (case sensitive)
d matches a digit (equivalent to [0-9])
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
2nd Alternative b[bB][kK][kK][A-Za-z0-9-]*
b assert position at a word boundary: (^w|w$|Ww|wW)
Match a single character present in the list below [bB]
bB matches a single character in the list bB (case sensitive)
Match a single character present in the list below [kK]
kK matches a single character in the list kK (case sensitive)
Match a single character present in the list below [kK]
kK matches a single character in the list kK (case sensitive)
Match a single character present in the list below [A-Za-z0-9-]
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
A-Z matches a single character in the range between A (index 65) and Z (index 90) (case sensitive)
a-z matches a single character in the range between a (index 97) and z (index 122) (case sensitive)
0-9 matches a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)
- matches the character - with index 4510 (2D16 or 558) literally (case sensitive)
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  2. 0

    The pattern d+-?d+-?d+-?d+ means that there should be at least 4 digits as all the hyphens are optional, but in the example data the part with the numbers have at least a single hyphen, and consist of 2, 3 or 4 parts.

    You could repeat the part with the digits and hyphen 1 or more times, and instead of using .*b use S*b to match optional non whitespace chars that will backtrack until the last word boundary.

    Note that if you use another delimiter in php than /, you don’t have to escape /

    Using a case insensitive match:

    b(?:d+(?:-d+)+|bkkS*|d+/d+)b

    Explanation

    • b A word boundary to prevent a partial word match
    • (?: Non capture group for the alternatives
      • d+(?:-d+)+ Match 1+ digits and repeat 1 or more times matching - and again 1+ digits (or use {1,3} instead of +)
      • | Or
      • bkkS* Match bkk and optional non whitespace characters
      • | Or
      • d+/d+ Match 1+ digits / and 1+ digits
    • ) Close the non capture group
    • b A word boundary

    See a regex101 demo.

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