regex101: PCRE (Legacy) Match Workspace

Pro

^start of line

Non-Capturing Group(?:0|\+[1-9]\d{0,2})

1st Alternative0

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

2nd Alternative\+[1-9]\d{0,2}

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

\d{0,2}a digit, repeated between 0 and 2 times

\d{10,15}a digit, repeated between 10 and 15 times

$end of line

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

25 tokens

Regular Expression

^(?:0|\+[1-9]\d{0,2})\d{10,15}$

New

01234567890
012345678901
0123456789012
01234567890123
012345678901234
0123456789012345
01234567890123456

+9991234567890
+99912345678901
+999123456789012
+9991234567890123
+99912345678901234
+999123456789012345
+9991234567890123456

Substitution

01234567890
012345678901
0123456789012
01234567890123
012345678901234
0123456789012345
01234567890123456

+9991234567890
+99912345678901
+999123456789012
+9991234567890123
+99912345678901234
+999123456789012345
+9991234567890123456