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  1. <?php
  2. $arr = [1, 9, 9, 5];
  3. $val = implode($arr);
  4. unset($arr);
  5. $arr[0] = $val;
  6. var_dump($arr);
Success #stdin #stdout 0.02s 23788KB
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Standard input is empty
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array(1) {
  [0]=>
  string(4) "1995"
}
https://ideone.com/VTb7vO
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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