PHP regular matches 5 to 10 digits without duplicates

It is convenient to match numbers with regular expressions, and here we introduce the method of matching 5 to 10 digits without repetition for your reference. Matches a duplicate of 5 to 10 digits, the regular expression can write: \d{5,10}. To match no duplicates of 5 to 10 digits, refer to the next online method of others, as follows: ^ (?! \d*? (\d) \d*?\1) \d{5,10}$ Below is an example of a matching no-duplicates number in PHP, as follows: ' If ($result >0) { echo ' matches ';} else { echo ' does not conform ';}? >

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