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  1. <?php
  2.  
  3. function __unshift(&$array, $value){
  4.     $key = array_search($value, $array);
  5.     if($key) unset($array[$key]);
  6.     array_unshift($array, $value);  
  7.     return $array;
  8. }
  9.  
  10. $a = array("Apple", "Orange", "Banana", "Melon");
  11. __unshift($a, "Melon");
  12. __unshift($a, "Orange");
  13. print_r($a);
  14.  
  15. ?>
Success #stdin #stdout 0.01s 20520KB
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stdin
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Standard input is empty
stdout
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Array
(
    [0] => Orange
    [1] => Melon
    [2] => Apple
    [3] => Banana
)
https://ideone.com/SCn6UD
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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