PHP - Array Functions
PHP - Array Functions
These functions allow you to interact with and manipulate arrays in various ways. Arrays are essential for storing, managing, and operating on sets of variables.
Installation
There is no installation needed to use these functions; they are part of the PHP core.
Runtime Configuration
This extension has no configuration directives defined in php.ini.
PHP Array Constants
| Sr.No | Constant & Description |
|---|---|
| 1 |
CASE_LOWER
Used with array_change_key_case() to convert array keys to lower case
|
| 2 |
CASE_UPPER
Used with array_change_key_case() to convert array keys to upper case
|
| 3 |
SORT_ASC
Used with array_multisort() to sort in ascending order
|
| 4 |
SORT_DESC
Used with array_multisort() to sort in descending order
|
| 5 |
SORT_REGULAR
Used to compare items normally
|
| 6 |
SORT_NUMERIC
Used to compare items numerically
|
| 7 |
SORT_STRING
Used to compare items as strings
|
| 8 |
SORT_LOCALE_STRING
Used to compare items as strings, based on the current locale
|
| 9 |
COUNT_NORMAL
|
| 10 |
COUNT_RECURSIVE
|
| 11 |
EXTR_OVERWRITE
|
| 12 |
EXTR_SKIP
|
| 13 |
EXTR_PREFIX_SAME
|
| 14 |
EXTR_PREFIX_ALL
|
| 15 |
EXTR_PREFIX_INVALID
|
| 16 |
EXTR_PREFIX_IF_EXISTS
|
| 17 |
EXTR_IF_EXISTS
|
| 18 |
EXTR_REFS
|
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