Regular Expressions 101

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  • PCRE2 (PHP >=7.3)
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/
\([0-9]{2}\) (?:9[0-9]{1}|[1-5]{1})[0-9]{3}-[0-9]{4}
/
gm
\( matches the character ( literally (case sensitive)
Match a single character present in the list below
[0-9]{2}
{2} Quantifier — Matches exactly 2 times
0-9 a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)
\) matches the character ) literally (case sensitive)
matches the character literally (case sensitive)
Non-capturing group
(?:9[0-9]{1}|[1-5]{1})
1st Alternative
9[0-9]{1}
9 matches the character 9 literally (case sensitive)
Match a single character present in the list below
[0-9]{1}
{1} Quantifier — Matches exactly one time (meaningless quantifier)
0-9 a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)
2nd Alternative
[1-5]{1}
Match a single character present in the list below
[1-5]{1}
{1} Quantifier — Matches exactly one time (meaningless quantifier)
1-5 a single character in the range between 1 (index 49) and 5 (index 53) (case sensitive)
Match a single character present in the list below
[0-9]{3}
{3} Quantifier — Matches exactly 3 times
0-9 a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)
- matches the character - literally (case sensitive)
Match a single character present in the list below
[0-9]{4}
{4} Quantifier — Matches exactly 4 times
0-9 a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)
Global pattern flags
g modifier: global. All matches (don't return after first match)
m modifier: multi 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.

Regular Expression
No Match

/
/
gm

Test String