PHP has a great deal of support for working with arrays built in. There are many string functions built into PHP-and there are plenty of arrays functions as well. You can see them in below:
| Functions | Does This |
|---|---|
| array_change_key_case | Returns an array with all string keys converted to lowercase or uppercase |
| array_chunk | Splits an array into chunks |
| array_combine | Creates an array by using one array for the keys and another for the values |
| array_count_value | Counts the values in an array |
| array_diff_assoc | Computes the difference of two arrays with additional index check |
| array_diff_uassoc | Computes the difference of two arrays with additional index check, performed by a user-supplied callback function |
| array_diff | Computes the difference of arrays |
| array_fill | Fill an array with values |
| array_filter | Filter elements of an array using a callback function |
| array_flip | Exchange all key with their associated values in an array |
| array_intersect_assoc | Computes the intersection of arrays with additional index check |
| array_intersect | Computes the intersection of array |
| array_key_exists | Check if the given key or index exists in the array |
| array_keys | Returns the key in an array |
| array_map | Applies the callback to the elements of the given arrays |
| array_merge_recursive | Merges two or more arrays recursively |
| array_merge | Merges two or more arrays |
| array-multisort | Sort Multiple or Multidimensional arrays |
| array_pad | Pad array to the specified length with a value |
| array_pop | Pops the element off the end of array |
| array_push | Pushes one or more random elements out of an array |
| array_rand | Picks one or more random elements out of an array |
| array_reduce | Reduces the array to a single value with a callback function |
| array_reverse | Returns ana array with elements in reverse order |
| array-search | Searches the array for a given value and returns the corresponding key |
| array_shift | Shifts an element off the beginning of an array |
| array_slice | Extract a slice of the array |
| array_splice | Remove part of the aray and replace it with something else |
| array_sum | Calculates the sum of values in an array |
| array_udiff_assoc | Computes the difference of arrays with an additional index check. Here, the data is compared by using a callback function |
| array_udiff_uassoc | Computes the difference of arrays with an index check. Here, the data is compared by using a callback function, and the index check is also performed by callback function |
| array_udiff | Computes the difference between arrays by using a callback function |
| array_unique | Remove duplicate elements from an arrays |
| array_unshift | Adds one or more elements to the beginning of an array |
| array_values | Returns all the values of an array |
| array_walk | Calls a user-supplied function on every member of an array |
| array | Create an array |
| arsort | Sorts an array in order, preserving index association |
| asort | Sort and array and maintains index association |
| compact | Creates array containing variables and their values |
| count | Counts the elements in an array |
| current | Returns the current element in an array |
| each | Returns the current key and values pair an array and advances the array cursor |
| end | Sets the array pointer to the last elements |
| extract | Imports variables into the current symbol table from an array |
| in_array | Check if the value exists in an array |
| key | Gets a key from an associative array |
| krsort | Sorts an array by key in reverse order |
| ksort | Sorts an array by key |
| list | Assigns variables as if they were an array |
| natcasesort | Sorts an array using a case-insensitive "natural order" algorithm |
| natsort | Sorts an array using a "natural order" algorithm" |
| next | Advances the array pointer of an array |
| pos | Alias of the current function |
| prev | Moves the array pointer back on elements |
| range | Creates an array containing a range of elements |
| reset | Sets the pointer of an array to its first elements |
| rsort | Sorts an array in reverse order |
| shuffle | Shuffles an array's elements |
| sizeof | Alias of the count function |
| sort | Sorts an array |
| uasort | Sorts an array with a user-defined comparison functions, maintaining indexes |
| uksort | Sorts an array bby keys; uses a user-defined comparison function |
| usort | Sorts an array by values; uses a user-defined comparison function |
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