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Usage examples of php boolean (Boolean) type

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2016-07-25 08:57:431495browse
  3. /**
  4. * Detect boolean type in php
  5. * edit: bbs.it-home.org
  6. */
  7. var_dump((bool) ""); // bool(false)
  8. var_dump((bool) 1); // bool(true)
  9. var_dump((bool) -2); // bool(true)
  10. var_dump((bool) "foo"); // bool(true)
  11. var_dump((bool) 2.3e5); // bool(true)
  12. var_dump ((bool) array(12)); // bool(true)
  13. var_dump((bool) array()); // bool(false)
  14. var_dump((bool) "false"); // bool(true)
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Instructions: When converting Boolean to string, true=>1, false=>"";



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