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  1. <?php
  2.  
  3. define('■','■'); define('●', '●'); define('▲', '▲'); // убирает ворнинг о неопределённой константе
  4.  
  5. function filter    ($◘, $◆) {return array_filter($◆, function($▼)    use($◘){return $▼ === $◘;});}
  6. function array_find($◘, $◆) {return $◆[array_search($◘, $◆)];}
  7. function fill      ($◘, $◆) {return array_fill(0, count($◆), $◘);}
  8. function every     ($◘, $◆) {return (bool)array_reduce($◆, function($□, $▼)use($◘){return $□ & ($▼ === $◘);}, true);}
  9.  
  10. var_export(array_map(function($■){return ●;}, [■,■,■,■]));
  11. echo PHP_EOL;
  12. var_export(filter      (■, [■,●,■,▲]));
  13. echo PHP_EOL;
  14. var_export(array_find  (●, [■,●,■,▲]));
  15. echo PHP_EOL;
  16. var_export(array_search(●, [■,●,■,▲]));
  17. echo PHP_EOL;
  18. var_export(fill        (●, [■,●,■,▲]));
  19. echo PHP_EOL;
  20. var_export(in_array    (●, [■,●,■,▲]));
  21. echo PHP_EOL;
  22. var_export(every       (●, [■,●,■,▲]));
  23. echo PHP_EOL;
  24.  
Success #stdin #stdout 0.02s 25948KB
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Standard input is empty
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array (
  0 => '●',
  1 => '●',
  2 => '●',
  3 => '●',
)
array (
  0 => '■',
  2 => '■',
)
'●'
1
array (
  0 => '●',
  1 => '●',
  2 => '●',
  3 => '●',
)
true
false
https://ideone.com/vFWWMu
language:
PHP (php 7.3.5)
created:
2 years ago
visibility:
secret

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