These work the same as do while loops only they execute until the condition evaluated is true
Here's a quick example:
$value=5;
do{
print "$value\n";
$value=$value-1;
} until($value<=10);
This is executes once and prints out $value;
5
Then $value is decremented and becomes 4
since 4<=10 is true execution of the loop is terminated
Now onto the exciting world of for loops
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