PHP array Tutorial articles sample scripts codes

PHP array are useful to store multiple data using a single variable. Using index of the PHP array we can access the stored data. Indexes ( or Keys ) to an array element can either a number or a string.
An array is a list variables. Each item in an array is commonly known as element of the array and can be accessed directly via its index.

Function	Details
Creating an Array	How to create and assign keys
array_change_key_case()	Changing keys to upper case or lower case chars
array_chunk()	Split an array into chunks
array_column()	Displaying one column data of an array
array_combine()	Creating array with Keys of one and values of another array
array_count_values	calculate the frequency of occurrence of elements inside a array
Displaying elements	Listing all elements of the array
array_diff	We can generate a resultant third array by differentiating two arrays
array_diff_assoc	Resultant third array by differentiating two arrays considering Keys
array_diff_uassoc	Resultant third array by differentiating values and (keys through callback function)
array_diff_ukey	Resultant third array by comparing keys through callback function
array_udiff	Resultant third array by comparing values through callback function
array_diff_key	We can generate a resultant third array by differentiating two arrays by considering keys only
array_fill_keys	Create array by filling keys and value
array_fill	Filling an array with value
array_filter()	Creating new array using filter ( callback ) function
array_intersect_assoc()	Intersection of arrays considering keys and values
array_intersect()	Intersection of arrays considering values only
array_intersect_key()	Intersection of arrays considering keys only
array_intersect_uassoc()	Intersection of arrays considering keys & values through callback function
array_intersect_ukey()	Intersection of arrays considering keys through callback function
in_array	Check the presence of an element inside an array. Returns True of False
is_array	To check the variable is array or not
array_size()	How many elements are present inside the array? We can find out by count or sizeof() function.
array_keys()	Returns Array of keys of a main array
array_key_exists()	Search Key, returns TRUE if found, FALSE otherwise
array_key_first()	Getting first key of the array ( >= PHP 7.3.0 )
array_key_last()	Getting last key of the array ( >= PHP 7.3.0 )
array_push	add elements to an existing array
array_max()	Maximum minimum value present inside array
array_merge	add one array to other by using array_merge
array_merge_recursive()	Merge one or more arrays recursively
array_pop	Removing last element of an array
array_rand	Randomly collecting elements of an array
array_range	Create array using a range with optional step value
array_search	Returns the key if matching found, FALSE otherwise
array_shift	Remove first element of an array
array_sum	Total value or sum of the elements present inside an array
array_shuffle	randomizes the order of the elements of an array
Breaking string	We can split a string and create a array by using all words.
Session array	create a session array and carry same data across the pages.
Sorting	Sorting all elements of an array by sort command
usort	sort the elements by using user defined function.
array_map	apply native functions or user defined function to each elements
array_unshift	Adding element at beginning of an array
array_unique	set of unique value from an array
unset	Delete elements by using key or value
array_walk()	Passing user defined function to each element of an array
Multidimensional Array	Creating and displaying elements of Multidimensional array
Array checkbox	Getting checkbox value using array
http_build_query	generate query string using elements to pass through URL

Navigation of Internal Pointer or cursor of the Array

Function	Details
Current	Present Element of the array
Next	Next Element of the array
Previous	Previous Element of the array
end	Last Element of the array
reset	First Element of the array

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