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array_change_key_case

(PHP 4 >= 4.2.0, PHP 5)

array_change_key_case — Променя всички ключове на масив

Описание

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

Връща масив, като преобразува всички ключове на масива input в горен или долен регистър. Цифровите индекси не се променят.

Параметри

input: Масивът, който ще се обработва.
case: CASE_UPPER или CASE_LOWER (по подразбиране)

Връщани стойности

Връща масив, с преобразувани индекси в горен или долен регистър, или false, ако параметърът input не е масив.

Грешки/Изключения

Хвърля E_WARNING, ако input не е масив.

Примери

Example #1 Пример за array_change_key_case()


<?php
$input_array = array("FirSt" => 1, "SecOnd" => 4);
print_r(array_change_key_case($input_array, CASE_UPPER));
?>

Примерът по-горе ще изведе:

Array
(
     [FIRST] => 1
     [SECOND] => 4
)

Бележки

Забележка: Ако масивът има индекси, които ще бъдат едни и същи след пускането на функцията (като например "keY" и "kEY"), стойността на последната поява на такъв индекс ще препокрие всички останали.

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