Arrays

• Introduction
• Predefined Constants
• Sorting Arrays
• Array Functions
  • array — Create an array
  • array_all — Checks if all array elements satisfy a callback function
  • array_any — Checks if at least one array element satisfies a callback function
  • array_change_key_case — Changes the case of all keys in an array
  • array_chunk — Split an array into chunks
  • array_column — Return the values from a single column in the input array
  • array_combine — Creates an array by using one array for keys and another for its values
  • array_count_values — Counts the occurrences of each distinct value in an array
  • array_diff — Computes the difference of arrays
  • array_diff_assoc — Computes the difference of arrays with additional index check
  • array_diff_key — Computes the difference of arrays using keys for comparison
  • array_diff_uassoc — Computes the difference of arrays with additional index check which is performed by a user supplied callback function
  • array_diff_ukey — Computes the difference of arrays using a callback function on the keys for comparison
  • array_fill — Fill an array with values
  • array_fill_keys — Fill an array with values, specifying keys
  • array_filter — Filters elements of an array using a callback function
  • array_find — Returns the first element satisfying a callback function
  • array_find_key — Returns the key of the first element satisfying a callback function
  • array_first — Gets the first value of an array
  • array_flip — Exchanges all keys with their associated values in an array
  • array_intersect — Computes the intersection of arrays
  • array_intersect_assoc — Computes the intersection of arrays with additional index check
  • array_intersect_key — Computes the intersection of arrays using keys for comparison
  • array_intersect_uassoc — Computes the intersection of arrays with additional index check, compares indexes by a callback function
  • array_intersect_ukey — Computes the intersection of arrays using a callback function on the keys for comparison
  • array_is_list — Checks whether a given array is a list
  • array_key_exists — Checks if the given key or index exists in the array
  • array_key_first — Gets the first key of an array
  • array_key_last — Gets the last key of an array
  • array_keys — Return all the keys or a subset of the keys of an array
  • array_last — Gets the last value of an array
  • array_map — Applies the callback to the elements of the given arrays
  • array_merge — Merge one or more arrays
  • array_merge_recursive — Merge one or more arrays recursively
  • array_multisort — Sort multiple or multi-dimensional arrays
  • array_pad — Pad array to the specified length with a value
  • array_pop — Pop the element off the end of array
  • array_product — Calculate the product of values in an array
  • array_push — Push one or more elements onto the end of array
  • array_rand — Pick one or more random keys out of an array
  • array_reduce — Iteratively reduce the array to a single value using a callback function
  • array_replace — Replaces elements from passed arrays into the first array
  • array_replace_recursive — Replaces elements from passed arrays into the first array recursively
  • array_reverse — Return an array with elements in reverse order
  • array_search — Searches the array for a given value and returns the first corresponding key if successful
  • array_shift — Shift an element off the beginning of array
  • array_slice — Extract a slice of the array
  • array_splice — Remove a portion of the array and replace it with something else
  • array_sum — Calculate the sum of values in an array
  • array_udiff — Computes the difference of arrays by using a callback function for data comparison
  • array_udiff_assoc — Computes the difference of arrays with additional index check, compares data by a callback function
  • array_udiff_uassoc — Computes the difference of arrays with additional index check, compares data and indexes by a callback function
  • array_uintersect — Computes the intersection of arrays, compares data by a callback function
  • array_uintersect_assoc — Computes the intersection of arrays with additional index check, compares data by a callback function
  • array_uintersect_uassoc — Computes the intersection of arrays with additional index check, compares data and indexes by separate callback functions
  • array_unique — Removes duplicate values from an array
  • array_unshift — Prepend one or more elements to the beginning of an array
  • array_values — Return all the values of an array
  • array_walk — Apply a user supplied function to every member of an array
  • array_walk_recursive — Apply a user function recursively to every member of an array
  • arsort — Sort an array in descending order and maintain index association
  • asort — Sort an array in ascending order and maintain index association
  • compact — Create array containing variables and their values
  • count — Counts all elements in an array or in a Countable object
  • current — Return the current element in an array
  • each — Return the current key and value pair from an array and advance the array cursor
  • end — Set the internal pointer of an array to its last element
  • extract — Import variables into the current symbol table from an array
  • in_array — Checks if a value exists in an array
  • key — Fetch a key from an array
  • key_exists — Alias of array_key_exists
  • krsort — Sort an array by key in descending order
  • ksort — Sort an array by key in ascending order
  • list — Assign variables as if they were an array
  • natcasesort — Sort an array using a case insensitive "natural order" algorithm
  • natsort — Sort an array using a "natural order" algorithm
  • next — Advance the internal pointer of an array
  • pos — Alias of current
  • prev — Rewind the internal array pointer
  • range — Create an array containing a range of elements
  • reset — Set the internal pointer of an array to its first element
  • rsort — Sort an array in descending order
  • shuffle — Shuffle an array
  • sizeof — Alias of count
  • sort — Sort an array in ascending order
  • uasort — Sort an array with a user-defined comparison function and maintain index association
  • uksort — Sort an array by keys using a user-defined comparison function
  • usort — Sort an array by values using a user-defined comparison function