PHP array function Encyclopedia

php A complete collection of array functions

array_change_key_case --  Returns an array of all lowercase or uppercase string key names 
array_chunk --  Split an array into multiple 
array_combine --   Create an array , Use the value of an array as its key name , The value of another array as its value array_count_values --  Count the number of times all values in the array appear 
array_diff_assoc --  Check the difference set of calculated array with index 
array_diff_key --  Use key name comparison to calculate the difference set of array 
array_diff_uassoc --  Use the callback function provided by the user to do index check to calculate the difference set of the array array_diff_ukey --  Using callback function to compare and calculate the difference set of array 
array_diff --  Calculating the difference set of an array 
array_fill --  Fills an array with a given value 
array_filter --   Using callback function to filter cells in array 
array_flip --  Swap keys and values in an array 
array_intersect_assoc --  Checking the intersection of computed arrays with indexes 
array_intersect_key --  Use key name comparison to calculate the intersection of arrays 
array_intersect_uassoc --  Checking the intersection of computed arrays with indexes , Comparing indexes with callback functions 
array_intersect_ukey --  Using callback function to compare key names to calculate the intersection of arrays 
array_intersect --  Calculate the intersection of arrays 
array_key_exists --  Check whether the given key name or index exists in the array 
array_keys --  Returns all key names in the array 
array_map --   Apply a callback function to the cells of a given array 
array_merge_recursive --  Recursively merge one or more arrays 
array_merge --  Merge one or more arrays 
array_multisort --  Sort multiple arrays or multidimensional arrays 
array_pad --   Fill the array with a value to the specified length 
array_pop --  Pop the last cell of the array ( Out of the stack )
array_product --  Calculate the product of all the values in the array 
array_push --   Press one or more cells to the end of the array ( Push )
array_rand --   Take one or more cells out of an array at random 
array_reduce --  Use callback function to iteratively simplify the array to a single value 
array_reverse --   Returns an array of cells in reverse order 
array_search --   Search the array for a given value , If successful, return the corresponding key name 
array_shift --   Move the cells at the beginning of the array out of the array 
array_slice --  Take a segment from the array 
array_splice --   Remove part of the array and replace it with other values 
array_sum --   All the values in the calculation and the array 
array_udiff_assoc --  Check the difference set of calculated array with index , Compare data with callback functions 
array_udiff_uassoc --  Check the difference set of calculated array with index , Compare data and index with callback function 
array_udiff --  Compare data with callback function to calculate difference set of array 
array_uintersect_assoc --  Checking the intersection of computed arrays with indexes , Compare data with callback functions 
array_uintersect_uassoc --  Checking the intersection of computed arrays with indexes , Compare data and index with callback function 
array_uintersect --  Calculate the intersection of arrays , Compare data with callback functions 
array_unique --  Remove duplicate values from the array 
array_unshift --   Insert one or more cells at the beginning of an array 
array_values --  Returns all the values in the array 
array_walk_recursive --  Recursively apply user functions... To each member of the array 
array_walk --  Apply user functions... To each member of the array 
array --   Create a new array 
arsort --   Reverse the array and keep the index relationship 
asort --  Sort the array and keep the index relationship 
compact --   Create an array , Include variable names and their values 
count --  Count the number of cells in an array or the number of attributes in an object 
current --  Returns the current cell in the array 
each --   Returns the current key in the array ／ Value pair and move the array pointer one step forward 
end --   Point the internal pointer of the array to the last cell 
extract --   Import variables from an array into the current symbol table 
in_array --  Check if there is a value in the array 
key --  Get the key name from the associated array 
krsort --  Reverse the array by key name 
ksort --  Sort arrays by key names 
list --   Assign values in an array to variables 
natcasesort --   use “ Natural ordering ” The algorithm sorts the array case insensitive 
natsort --   use “ Natural ordering ” The algorithm sorts the array 
next --   Move the internal pointer in the array one bit forward 
pos -- current()  Another name for 
prev --  Returns the internal pointer of an array to one bit 
range --   Create an array containing the specified range cells , Create a contiguous array 
reset --   Point the internal pointer of the array to the first cell 
rsort --  Sort the array in reverse 
shuffle --  Scramble the array 
sizeof -- count()  Another name for 
sort --  Sort the array 
uasort --   Use the user-defined comparison function to sort the values in the array and keep the index association 
uksort --   Use the user-defined comparison function to sort the key names in the array 
usort --   Use the user-defined comparison function to sort the values in the array