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Jan 03, 2025 am 04:27 AM

How Can I Efficiently Delete Elements from a PHP Array?

PHP ???? ?? ??

PHP ???? ?? ??? ???? ?? ??? ??? ?? ??? ??? ??????. ? ??? ???? ???? ?? ??? ????.

?? ?? ??

  • unset(): ?? ?? ??? ?????. , ??? ???? ?????. keys.
  • array_splice(): ???? ????? ??? ???? ?? ?? ???? ?? ???? ? ?? ? ?? ???? ?????.

?: 

$array = ["a", "b", "c"];

unset($array[1]); // Remove "b" using unset()

array_splice($array, 2, 1); // Remove "c" using array_splice()

print_r($array); // Output: ["a"]

??? ?? Elements

?? ??? ???? ??:

  • array_diff(): ? ??? ???? ? ?? ???? ?? ? ?? ??? ??? ? ??? ?????. (? ?? value).
  • array_diff_key(): array_diff()? ????? ? ?? ?? ?????.

?: 

$array = ["a", "b", "c", "d"];

$array = array_diff($array, ["b", "d"]); // Remove "b" and "d" using array_diff()

$array = array_diff_key($array, ["1" => "xy", "3" => "xy"]); // Remove elements with keys "1" and "3"

print_r($array); // Output: ["a", "c"]

?? ??? ??? ?? ????. array_keys() ?? ?? ?? ??? ?? ??? ?? unset() ?? array_splice()? ???? ?????.

??? ??? ???? ?:

$array = ["a", "b", "c", "b", "d"];

$keys_to_delete = array_keys($array, "b");

foreach ($keys_to_delete as $key) {
    unset($array[$key]);
}

print_r($array); // Output: ["a", "c", "d"]

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