PHP PROGRAMMING UNIT-V Array: Anatomy of an Array ...
array_key_exists() • As was stated earlier, PHP needs to have additional functionality when navigating arrays since it allows atypical indexing. • array_key_exists() checks for an array index within an array and returns true if it exists. • Syntax: boolean array_key_exists(index, array) • For example, from the in-class exercise, the ................
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