Question

How to remove duplicate words from an array in PHP

Answer 1

$arr = array('java',  'php', 'c++', 'python', 'php', ' c ', ' c ', 'php', 'c++', 'go');
$arr = array_unique($arr);
  
print_r($arr);
 
  
  
/*
run:
  
Array
(
    [0] => java
    [1] => php
    [2] => c++
    [3] => python
    [5] =>  c 
    [9] => go
)

*/

 

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Answer 2

$arr = array('java',  'php', 'c++', 'python', 'php', ' c ', ' c ', 'php', 'c++', 'go');
$arr = array_unique($arr);
$arr = array_values($arr); // reindex the array 
  
print_r($arr);
 
  
  
/*
run:
  
Array
(
    [0] => java
    [1] => php
    [2] => c++
    [3] => python
    [4] =>  c 
    [5] => go
)

*/

 

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