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Summary of false when converting various types of data to bool in PHP

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2016-08-08 09:24:241445browse
  • the boolean FALSE itself
  • the integer 0 (zero)
  • the float 0.0 (zero)
  • the empty string, and the string "0"
  • an array with zero elements
  • an object with zero member variables ( PHP 4 only)
  • the special type NULL (including unset variables)
  • SimpleXML objects created from empty tags

    • Others are true

    The above has introduced the summary of false when converting various types of data in PHP to bool type, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.

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