Zend Php5 Certification - Array Functions

Front 1

Returns an array with all string keys lowercased or uppercased

Back 1

<b>array_change_key_case()</b>

array_change_key_case ( array $input [, int $case] )

Front 2

Splits the array into several arrays with size values in them -- You get the arrays as members of a multidimensional array indexed with numbers starting from zero.

Back 2

array_chunk ( array $input, int $size [, bool $preserve_keys] )

array_chunk()

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Creates an array by using one array for keys and another for its values

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array_combine ( array $keys, array $values )

Front 4

Counts all the values of an array

Back 4

array_count_values ( array $input )

Front 5

Computes the difference of arrays with additional index check

Back 5

array_diff_assoc ( array $array1, array $array2 [, array $ ...] )

Front 6

Computes the difference of arrays using keys for comparison

Back 6

array_diff_key ( array $array1, array $array2 [, array $ ...] )

Front 7

Computes the difference of arrays with additional index check which is performed by a user supplied callback function

Back 7

array_diff_uassoc ( array $array1, array $array2 [, array $..., callback $key_compare_func] )

Front 8

Computes the difference of arrays using a callback function on the keys for comparison

Back 8

array_diff_ukey ( array $array1, array $array2 [, array $ ..., callback $key_compare_func] )

Front 9

Computes the difference of arrays

Back 9

array_diff ( array $array1, array $array2 [, array $ ...] )

Front 10

Fill an array with values, specifying keys

Back 10

array_fill_keys ( array $keys, mixed $value )

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Fill an array with values

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array_fill ( int $start_index, int $num, mixed $value )

Front 12

Filters elements of an array using a callback function

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array_filter ( array $input [, callback $callback] )

Front 13

Exchanges all keys with their associated values in an array

Back 13

array_flip ( array $trans )

Front 14

Computes the intersection of arrays with additional index check

Back 14

array_intersect_assoc ( array $array1, array $array2 [, array $ ...] )

Front 15

Computes the intersection of arrays with additional index check, compares indexes by a callback function

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array_intersect_uassoc ( array $array1, array $array2 [, array $ ..., callback $key_compare_func] )

Front 16

Computes the intersection of arrays using a callback function on the keys for comparison

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array_intersect_ukey ( array $array1, array $array2 [, array $..., callback $key_compare_func] )

Front 17

Computes the intersection of arrays

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array_intersect ( array $array1, array $array2 [, array $ ...] )

Front 18

Checks if the given key or index exists in the array

Back 18

array_key_exists ( mixed $key, array $search )

Front 19

Return all the keys of an array

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array_keys ( array $input [, mixed $search_value [, bool $strict]] )

Front 20

Applies the callback to the elements of the given arrays

Back 20

array_map ( callback $callback, array $arr1 [, array $...] )

Front 21

Merge two or more arrays recursively

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array_merge_recursive ( array $array1 [, array $...] )

Front 22

Merge one or more arrays

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array_merge ( array $array1 [, array $array2 [, array $...]] )

Front 23

Sort multiple or multi-dimensional arrays

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array_multisort ( array $ar1 [, mixed $arg [, mixed $... [, array $...]]] )

Front 24

Pad array to the specified length with a value

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array_pad ( array $input, int $pad_size, mixed $pad_value )

Front 25

Pop the element off the end of array

Back 25

array_pop ( array &$array )

Front 26

Calculate the product of values in an array

Back 26

array_product ( array $array )

Front 27

Push one or more elements onto the end of array

Back 27

array_push ( array &$array, mixed $var [, mixed $...] )

Front 28

Pick one or more random entries out of an array

Back 28

array_rand ( array $input [, int $num_req] )

Front 29

Iteratively reduce the array to a single value using a callback function

Back 29

array_reduce ( array $input, callback $function [, int $initial] )

Front 30

Return an array with elements in reverse order

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array_reverse ( array $array [, bool $preserve_keys] )

Front 31

Searches the array for a given value and returns the corresponding key if successful

Back 31

array_search ( mixed $needle, array $haystack [, bool $strict] )

Front 32

Shift an element off the beginning of array

Back 32

array_shift ( array &$array )

Front 33

Extract a slice of the array

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array_slice ( array $array, int $offset [, int $length [, bool $preserve_keys]] )

Front 34

Remove a portion of the array and replace it with something else

Back 34

array_splice ( array &$input, int $offset [, int $length [, array $replacement]] )

Front 35

Calculate the sum of values in an array

Back 35

array_sum ( array $array )

Front 36

Computes the difference of arrays with additional index check, compares data by a callback function

Back 36

array_udiff_assoc ( array $array1, array $array2 [, array $ ..., callback $data_compare_func] )

Front 37

Computes the difference of arrays with additional index check, compares data and indexes by a callback function

Back 37

array_udiff_uassoc ( array $array1, array $array2 [, array $ ..., callback $data_compare_func, callback $key_compare_func] )

Front 38

Computes the difference of arrays by using a callback function for data comparison

Back 38

array_udiff ( array $array1, array $array2 [, array $ ..., callback $data_compare_func] )

Front 39

Computes the intersection of arrays with additional index check, compares data by a callback function

Back 39

array_uintersect_assoc ( array $array1, array $array2 [, array $ ..., callback $data_compare_func] )

Front 40

Computes the intersection of arrays with additional index check, compares data and indexes by a callback functions

Back 40

array_uintersect_uassoc ( array $array1, array $array2 [, array $ ..., callback $data_compare_func, callback $key_compare_func] )

Front 41

Computes the intersection of arrays, compares data by a callback function

Back 41

array_uintersect ( array $array1, array $array2 [, array $ ..., callback $data_compare_func] )

Front 42

Removes duplicate values from an array

Back 42

array_unique ( array $array )

Front 43

Prepend one or more elements to the beginning of an array

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array_unshift ( array &$array, mixed $var [, mixed $...] )

Front 44

Return all the values of an array

Back 44

array_values ( array $input )

Front 45

Apply a user function recursively to every member of an array

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array_walk_recursive ( array &$input, callback $funcname [, mixed $userdata] )

Front 46

Apply a user function to every member of an array

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array_walk ( array &$array, callback $funcname [, mixed $userdata] )

Front 47

Create an array

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array ( [mixed $...] )

Front 48

Sort an array in reverse order and maintain index association

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arsort ( array &$array [, int $sort_flags] )

Front 49

Sort an array and maintain index association

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asort ( array &$array [, int $sort_flags] )

Front 50

Create array containing variables and their values

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compact ( mixed $varname [, mixed $...] )

Front 51

Count elements in an array, or properties in an object

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count ( mixed $var [, int $mode] )

Front 52

Return the current element in an array

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current ( array &$array )

Front 53

Return the current key and value pair from an array and advance the array cursor

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each ( array &$array )

Front 54

Set the internal pointer of an array to its last element

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end ( array &$array )

Front 55

Import variables into the current symbol table from an array

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extract ( array $var_array [, int $extract_type [, string $prefix]] )

Front 56

Checks if a value exists in an array

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in_array ( mixed $needle, array $haystack [, bool $strict] )

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Fetch a key from an associative array

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key ( array &$array )

Front 58

Sort an array by key in reverse order

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krsort ( array &$array [, int $sort_flags] )

Front 59

Sort an array by key

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ksort ( array &$array [, int $sort_flags] )

Front 60

Assign variables as if they were an array

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list ( mixed $varname, mixed $... )

Front 61

Sort an array using a case insensitive "natural order" algorithm

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natcasesort ( array &$array )

Front 62

Sort an array using a "natural order" algorithm

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natsort ( array &$array )

Front 63

Advance the internal array pointer of an array

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next ( array &$array )

Front 64

pos

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Alias of current()

Front 65

Rewind the internal array pointer

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prev ( array &$array )

Front 66

Create an array containing a range of elements

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range ( mixed $low, mixed $high [, number $step] )

Front 67

Set the internal pointer of an array to its first element

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reset ( array &$array )

Front 68

Sort an array in reverse order

Back 68

rsort ( array &$array [, int $sort_flags] )

Front 69

Shuffle an array

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shuffle ( array &$array )

Front 70

sizeof

Back 70

Alias of count()

Front 71

Sort an array

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sort ( array &$array [, int $sort_flags] )

Front 72

Sort an array with a user-defined comparison function and maintain index association

Back 72

uasort ( array &$array, callback $cmp_function )

Front 73

Sort an array by keys using a user-defined comparison function

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uksort ( array &$array, callback $cmp_function )

Front 74

Sort an array by values using a user-defined comparison function

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usort ( array &$array, callback $cmp_function )