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  1. <?php
  2.  
  3. function first_element(Array $a) {
  4.     $keys = array_keys($a);
  5.     return $a[$keys[0]];
  6. }
  7.  
  8. echo first_element(Array(
  9. 	'red' => 42,
  10. 	'green' => 265,
  11. 	'blue' => 1488
  12.      )) . PHP_EOL;
  13.  
  14. echo first_element(Array(
  15. 	13 => 'first',
  16. 	9000 => 'second',
  17. 	100500 => 'last'
  18.      )) . PHP_EOL;
  19.  
Success #stdin #stdout 0.02s 52472KB
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stdin
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Standard input is empty
stdout
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42
first
https://ideone.com/lV3z8z
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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