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<?php
$a=[1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
for($i=1;$i<=count($a);$i+=2){
  unset($a[$i]);
  }
print_r($a);

Success #stdin #stdout 0.02s 24364KB

stdin

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Standard input is empty

stdout

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Array
(
    [0] => 1
    [2] => 3
    [4] => 5
    [6] => 7
    [8] => 9
    [9] => 10
)

https://ideone.com/2ZejWZ

language:

PHP (php 7.3.5)

created:

visibility:

public

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