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- PCRE2 (PHP >=7.3)
- PCRE (PHP <7.3)
- ECMAScript (JavaScript)
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- Java 8

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M\D*[\d\.]+\s*[a-zA-Z]*\s*[\d\.]+

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gm

M matches the character M with index 77_{10} (4D_{16} or 115_{8}) literally (case sensitive)

\D

matches any character that's not a digit (equivalent to [^0-9])* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)

Match a single character present in the list below

[\d\.]

+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)

\d matches a digit (equivalent to [0-9])

\. matches the character . with index 46_{10} (2E_{16} or 56_{8}) literally (case sensitive)

\s

matches any whitespace character (equivalent to [\r\n\t\f\v ])* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)

Match a single character present in the list below

[a-zA-Z]

* 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 97) and z (index 122) (case sensitive)

A-Z matches a single character in the range between A (index 65) and Z (index 90) (case sensitive)

\s

matches any whitespace character (equivalent to [\r\n\t\f\v ])Match a single character present in the list below

[\d\.]

+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)

\d matches a digit (equivalent to [0-9])

\. matches the character . with index 46_{10} (2E_{16} or 56_{8}) literally (case sensitive)

Global pattern flags

g modifier: **g**lobal. All matches (don't return after first match)

m modifier: **m**ulti line. Causes ^ and $ to match the begin/end of each line (not only begin/end of string)

Your regular expression does not match the subject string.Try launching the debugger to find out why.

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gm

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