Array FunctionsArrays
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These functions allow you to interact with and manipulate
arrays in various ways. Arrays are essential for storing,
managing, and operating on sets of variables.
Simple and multi-dimensional arrays are supported, and may be
either user created or created by another function.
There are specific database handling functions for populating
arrays from database queries, and several functions return arrays.
Please see the Arrays
section of the manual for a detailed explanation of how arrays are
implemented and used in PHP.
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&reftitle.install;
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CASE_UPPER and CASE_LOWER are
used with the array_change_key_case function. They
respectively are used for changing a string to upper case or lower case.
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See also is_array, explode,
implode, split,
and join.
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