We have some links that sometimes work and sometimes don't.
We need PHP code to test all of the links possible. The links start with a specific URL but have a changing 18 character code at the end.
We need the code to try the first link, if the link work it save in list, if the link don't work change the first character to A, if the link doesn't work, change the first character to B, C, D, etc... all the way to Z then change the first character to a, b, c, etc... all the way to z then change the first character to 0, 1,2, etc... all the way to 9. After done with first character, start over, but with second character, third character, all the way to the 18th character.
After testing all characters, test two character at same time, then test three character at the same time etc. all the way until all characters are being tested at the same time.
I should be able to define the amount how many characters to test, first two characters, first three, first four etc. default should be testing 1 character at a time only.
At the end of the test the code should display a list of good links and a list of bad links.