frederick can you tell me what i'm doing wrong here ...i'm wanting to use regex to find range of numbers to upload / not upload in the cdn admin .... like wp-content/uploads/avatars/(387[7-9]|38[89][0-9]|39[0-9]{2}|[4-9][0-9]{3}|[1-9][0-9]{4}|100000)
doesn't work is there a way to make this work or is my format wrong its supposed be the range from 3877 - 100000