PHP Array, phparray_PHP Tutorial

Function

Description

array()

Create an array.

array_change_key_case()

Returns an array whose keys are all uppercase or lowercase.

array_chunk()

Split an array into new array blocks.

array_combine()

Create a new array by merging two arrays.

array_count_values()

is used to count the number of occurrences of all values ​​in the array.

array_diff()

Returns the difference array of two arrays.

array_diff_assoc()

Compare the key name and key value, and return the difference array of the two arrays.

array_diff_key()

Compare the key names and return the difference array of the two arrays.

array_diff_uassoc()

Calculate the difference set of the array by doing index checking through the callback function provided by the user.

array_diff_ukey()

Use the callback function to compare the key names and calculate the difference set of the array.

array_fill()

Fills the array with the given values.

array_filter()

Use the callback function to filter the elements in the array.

array_flip()

Swap the keys and values ​​in the array.

array_intersect()

Calculate the intersection of arrays.

array_intersect_assoc()

Compares the key name and key value and returns the intersection array of the two arrays.

array_intersect_key()

Computes the intersection of arrays using key name comparison.

array_intersect_uassoc()

Calculate the intersection of arrays with index checking, and use callback functions to compare the indices.

array_intersect_ukey()

Use the callback function to compare the key names to calculate the intersection of the arrays.

array_key_exists()

Checks whether the given key or index exists in the array.

array_keys()

Returns all key names in the array.

array_map()

Apply the callback function to the cells of the given array.

array_merge()

Combine one or more arrays into one array.

array_merge_recursive()

Recursively merge one or more arrays.

array_multisort()

Sort multiple arrays or multidimensional arrays.

array_pad()

Pall the array to the specified length with values.

array_pop()

Pop (pop) the last element of the array.

array_product()

Calculates the product of all values ​​in an array.

array_push()

Push one or more cells (elements) to the end of the array (push).

array_rand()

Randomly select one or more elements from the array and return it.

array_reduce()

Use a callback function to iteratively reduce the array to a single value.

array_reverse()

Reverse the order of elements in the original array, create a new array and return it.

array_search()

Search for the given value in the array and return the corresponding key name if successful.

array_shift()

Deletes the first element in the array and returns the value of the deleted element.

array_slice()

Remove a value from the array based on the condition and return it.

array_splice()

Remove a part of the array and replace it with other values.

array_sum()

Calculate the sum of all values ​​in an array.

array_udiff()

Use callback function to compare data to calculate the difference of arrays.

array_udiff_assoc()

Calculate the difference set of arrays with index checking, and use callback functions to compare data.

array_udiff_uassoc()

With index check, calculate the difference set of the array, and use the callback function to compare the data and index.

array_uintersect()

Calculate the intersection of arrays and use callback functions to compare data.

array_uintersect_assoc()

Calculate the intersection of arrays with index checking and use callback functions to compare data.

array_uintersect_uassoc()

Calculate the intersection of arrays with index checking and use callback function to compare data and index.

array_unique()

Remove duplicate values ​​from the array.

array_unshift()

Insert one or more elements at the beginning of the array.

array_values()

Returns all values ​​in the array.

array_walk()

Apply a user function to each member of the array.

array_walk_recursive()

Apply the user function recursively to each member of the array.

arsort()

Sort the array in reverse order and maintain the index relationship.

asort()

Sort the array and maintain the index relationship.

compact()

Create an array including variable names and their values.

count()

Calculate the number of elements in an array or the number of attributes in an object.

current()

Returns the current element in the array.

each()

Returns the current key/value pair in the array and moves the array pointer forward one step.

end()

Sets the array's internal pointer to the last element.

extract()

Import variables from the array into the current symbol table.

in_array()

Checks whether the specified value exists in the array.

key()

Get the key name from the associative array.

krsort()

Sort the array in reverse order by key name.

ksort()

Sort the array by key name.

list()

Assign the values ​​in the array to some variables.

natcasesort()

Sort the array in a case-insensitive manner using the "natural sorting" algorithm.

natsort()

Sort the array using the "natural sorting" algorithm.

next()

Moves the internal pointer in the array forward one position.

pos()

An alias for current().

prev()

Rewind the internal pointer of the array by one bit.

range()

Creates an array containing the specified range of elements.

reset()

Set the internal pointer of the array to the first element.

rsort()

Sort the array in reverse order.

shuffle()

Rearrange the elements in the array in random order.

sizeof()

An alias for count().

sort()

Sort the array.

uasort()

Use a user-defined comparison function to sort values ​​in an array and maintain index association.

uksort()

Use a user-defined comparison function to sort the keys in the array.

usort()

Sort the values ​​in an array using a user-defined comparison function.