This is an example of one way not to repair a crumbling porch. Over time the elements got to the outer later of this porch brickwork. Mortar and bricks became loose and fell out. What the home owner did was to provide bracing to keep addotional courses of block from falling out.
I did not do a home inspection on this property. The picture was taken from the street of a home I was driving by when I saw the condition of the porch structure. It is not know if there was any kind of Safery issue related ith the deteriorated brick work.