php - automatically populate arrays -

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strangely enough haven't found question or answers problem (should quite basic), ask here.

in php if have array named myarray don't know contents of, can't this:

$myarray[20] = "some string";

because entry 20 may exist.

so there way automatically insert string last entry, nothing overwritten in array?

you add new item array like:

$myarray[] = "some string";

this automatically add end of existing array without overwriting existing array entries.


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