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  1. <?php
  2. $arr1 = new ArrayObject([1,2,3]);
  3. $arr2 = new ArrayObject();
  4. $arr3 = 'HelloWorld';
  5.  
  6. var_dump(isInitArrayObject($arr1)); //false
  7. var_dump(isInitArrayObject($arr2)); //true
  8. var_dump(isInitArrayObject($arr3)); //false
  9.  
  10. function isInitArrayObject($arr1) {
  11. 	if (!($arr1 instanceof ArrayObject)) {
  12. 		return false;
  13. 	} else {
  14. 		$arr_init = new ArrayObject();
  15. 	    return ($arr1->serialize() === $arr_init->serialize());
  16. 	}
  17. }
Success #stdin #stdout 0.02s 52488KB
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stdin
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Standard input is empty
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bool(false)
bool(true)
bool(false)
https://ideone.com/Frx0EH
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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