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PHP Taskbook Level 10.5

Given a number, display the process of factoring the number into prime factors, as in school.

Given an arbitrary two-dimensional array:

[ [11, 12, 13, 14, 15], [21, 22, 23, 24, 25], [31, 32, 33, 34, 35], [41, 42, 43, 44, 45], [51, 52, 53, 54, 55], ]

Write code that will get an array of values ​​for a given column:

[ 13, 23, 33, 43, 54 ]

Given a multidimensional array of arbitrary nesting level:

[ 'a' => [ 'b' => [ 'c' => '+++' ] ], ]

Make a function that will return the elements of an array, receiving as a parameter a string with the array keys separated by dots:

func('a.b.c'); // will return '+++'

Once you enter the page, fill in the table as follows:

byitkaruhu