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  1. <?php
  2.  
  3. $week_days=[
  4. 	1=>'Пн',
  5. 	2=>'вт',
  6. 	3=>'ср',
  7. 	4=>'чт',
  8. 	5=>'пт',
  9. 	6=>'сб',
  10. 	7=>'вс',
  11. 	];
  12.  
  13. 	$days="123567";
  14. 	$days_arr=str_split($days,1);
  15.  
  16.  
  17. 	print_r(array_intersect_key($week_days,array_flip($days_arr)));
Success #stdin #stdout 0.01s 82880KB
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stdin
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Standard input is empty
stdout
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Array
(
    [1] => Пн
    [2] => вт
    [3] => ср
    [5] => пт
    [6] => сб
    [7] => вс
)
https://ideone.com/h5E0af
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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