With associative arrays, you can use any alphanumeric keys that you want for the array elements.
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Q15: The array_push() function adds one or more
Q16: Aside from its main function, the array_splice()
Q17: You use the array_unshift() function to remove
Q18: The internal array pointer is a special
Q19: The last element is removed from the
Q21: Use the array_slice() function to return or
Q22: You refer to the values in a
Q23: The _ function lets you add or
Q24: The array_unshift() function adds _ element(s) to
Q25: The array_push() function _ one or more
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