Pharaonic
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# array_is_numeric

Checks if all the keys are numeric From 0 to N (Boolean).

1array_is_numeric($array);

# array_is_null

Checks if all the values are Null type (Boolean).

1array_is_null($array);

# array_is_multidimensional

Checks if the array is Multidimensional (Boolean).

1array_is_multidimensional($array);