PHP/arrays/pointer

Arrays have an internal pointer for serial access. Most functions don't use it, but there are a number which do, or which are related to the order of elements.

There are also functions which remove, add, or rotate elements; those should probably be documented here as well.

pointer

• current(): return the current element
• end(): point the internal pointer at the last element
• key(): return the index element of the current array position
• next(): advance the internal pointer by one element
• prev(): move the internal pointer back by one element
• reset(): point the internal pointer at the first element

order only

• array_key_first(): gets the first key of an array
• array_key_last(): gets the last key of an array