PHP regular expression: string must contain X character N times

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I'm newbie in the world of regular expression.

I want to create an expression can match X character N times in a string.

for example:

X = t

N = 2

then it should match string "test" or "tit" or "tt".

asked 1 min ago

Bhargav Rupapara

1

PHP regular expression: string must contain X character N times