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Using the Internal Array Pointers to Access Elements

An internal array pointer, in PHP, is fundamentally an invisible pointer that points to a particular record in an array.
http://www.talkphp.com/vbarticles.php?do=article&articleid=41&title=using-the-internal-array-pointers-to-access-elements-in-arrays
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The native array pointer functions in PHP allow you to traverse an array without actually referring to specific array elements. They can be particularly useful if you're using an associative array and wish to use the first element in the array.

An internal array pointer, in PHP, is fundamentally an invisible pointer that points to a particular record in an array.

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