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This article mainly explains "how php converts strings to bool types". The explanation in this article is simple and clear and easy to learn and understand. please follow the editor's ideas to study and learn "how php converts strings to bool types".

Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

Method 1: add the target type (bool) or (boolean) enclosed in parentheses before the string variable to be converted

Output result:

Method 2: use the boolval () function

Boolval (): used to get the Boolean value of the variable

Output result:

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