- rand: documentation ( source)
- srand: documentation ( source)
<?php
$fake_solution="1100111010110111010010100101111101111011101101011100100001110011001110010011011011101100011100100010100011011000101011010001000010000000010110101111101001101000";
srand(0); //for me... in this server... the first rand() value after srand(0) gives "1804289383"
for($i=0;$i<strlen($fake_solution);$i++){
$fake_solution[$i]=$fake_solution[$i]^(rand()%2);
}
echo($fake_solution);