Array
(
[0] => 5
[1] => 10
[2] => 7
[3] => 3
)
výpis funkce:
Array
(
[0] => 20
[1] => 10
[2] => 7
[3] => 3
)
Array
(
[0] => 20
[1] => 10
[2] => 7
[3] => 3
)
Nález 7 v indexu 2
Hodnota 7 nahrazena novou hodnotou 33
Array
(
[0] => 20
[1] => 10
[2] => 33
[3] => 3
)