Question

So i have a foreach and i want to insert a bit of html every say 6 times or maybe 11 times the loop is run.

So my insert on each 13th record

if ($i % 13 == 0) { 
}

trouble is i want to add a bit more randomness to it.

Totally forgotten what this is called as well

Answer 1

Something like this will make some code execute $percentage of the time every loop. For example you could set $percent = 20 then your code will execute only 20% of the time each iteration.

$value = rand( 0, 100 ); // Set your ranges (min/max)
$percent = 0; // Set percentage

if ( $percent >= $value )
{
    // Will only execute $percentage of the time each loop
}