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  1. <?php
  2.  
  3. $keyWords = [
  4.     'Привет друзья', 'Привет друзья на', 'на тостере'
  5. ];
  6.  
  7. usort($keyWords, function ($a, $b) {
  8. 	return strlen($b)-strlen($a);
  9. });
  10.  
  11. var_dump($keyWords);
Success #stdin #stdout 0.01s 20568KB
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stdin
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stdout
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array(3) {
  [0]=>
  string(30) "Привет друзья на"
  [1]=>
  string(25) "Привет друзья"
  [2]=>
  string(19) "на тостере"
}
https://ideone.com/KFBjoF
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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