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  1. <?php
  2.  
  3. function isJSON( $data = null ) {
  4. 	if( ! empty( $data ) ) {
  5. 		$tmp = json_decode( $data );
  6. 		return (
  7. 				json_last_error() === JSON_ERROR_NONE
  8. 				&& ( is_object( $tmp ) || is_array( $tmp ) )
  9. 		);
  10. 	}
  11. 	return false;
  12. }
  13.  
  14. var_dump(isJSON(1));
  15. var_dump(isJSON(true));
  16. var_dump(isJSON('"bla-bla-bla"'));
  17. var_dump(isJSON('bla-bla-bla'));
  18. var_dump(isJSON('[1, 2, 3]'));
  19. var_dump(isJSON('{"aaa":"bbb", "ccc":"ddd"}'));
Success #stdin #stdout 0.01s 82880KB
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Standard input is empty
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bool(false)
bool(false)
bool(false)
bool(false)
bool(true)
bool(true)
https://ideone.com/DpA6eE
language:
PHP (php 7.3.5)
created:
6 years ago
visibility:
secret

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