php - Random 4 digit number excluding numbers 8 and 9 -


i need generate random 4 digit number, exclude 8 , 9 in generation.

here's code i'm using now, doesn't exclude 8 , 9,

rand(pow(10, 4 - 1), pow(10, 4) - 1);

this work well.

$allowednumbers = range(0, 7); $digits = array_rand($allowednumbers, 4); $number = ''; foreach($digits $d){     $number .= $allowednumbers[$d]; }  echo $number;

benefit here can specify allowed characters creating array of allowed digits. allow include character array including letters or words.


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