Notes ¶. Note: array() is a language construct used to represent literal arrays, and not a regular function.

Compares values only. Ignores indexes of array. Example: array_diff, array_intersect. [prefix] u - will do comparison with user defined function. Letter u can ...

Array_chunk · Is_array · Array_is_list · Array_count_values

An array in PHP is actually an ordered map. A map is a type that associates values to keys. This type is optimized for several different uses; it can be treated ...

Arrays ¶ · Introduction · Installing/Configuring · Requirements · Installation · Runtime Configuration · Predefined Constants · Sorting Arrays · Array Functions.

Returns an array containing the results of applying the callback function to the corresponding value of array (and arrays if more arrays are provided) used as ...

There's a lot of multidimensional array_keys function out there, but each of them only merges all the keys in one flat array. Here's a way to find all the keys ...

Prior to PHP 8.0.0, a string needle will match an array value of 0 in non-strict mode, and vice versa. That may lead to undesireable results. Similar edge cases ...

Array_search · In_array · Key_exists

The + operator returns the right-hand array appended to the left-hand array; for keys that exist in both arrays, the elements from the left-hand array will be ...

array_is_list() - Checks whether a given array is a list · is_float() - Finds whether the type of a variable is float · is_int() - Find whether the type of a ...

Applies the user-defined callback function to each element of the array array. array_walk() is not affected by the internal array pointer of array . array_walk ...

Array_walk · Array_walk_recursive · Iterator_apply