p()
is the main method, and d()
works the same way, except that it calls the die()
method instead of returning the variable:
of that, PrestaShop defines the ppp()
and ddd()
methods, which are respectively the aliases of p()
and d()
. They work exactly the same, but are often easier to search and find in a huge block of code.
ppp()
ddd()
These debug methods are not activated by default. To activate them, you must enable the Debug mode, by setting _PS_MODE_DEV_
to true
(see above).
http://doc.prestashop.com/display/PS16/Setting+Up+Your+Local+Development+Environment