How to convert string to boolean type in php

Conversion method: 1. Add the target type "(bool)" or "(boolean)" enclosed in parentheses before the conversion variable; 2. Use the boolval() function, the syntax "boolval(string) )"; 3. Use the settype() function with the syntax "settype(variable, "boolean")".

The operating environment of this tutorial: windows7 system, PHP version 8.1, DELL G3 computer

php will string Method of converting to Boolean type

Method 1: Add the target type "(bool)" or "(boolean)" enclosed in parentheses before the conversion variable

Output:

Method 2: Use boolval() function

boolval(): Use Used to get the Boolean value of the variable;

Output:

Method 3: Use the bsettype() function

settype(): used to set the type of a variable; the settype() function changes the type of the variable itself.

Return value: TRUE when the setting is successful, FALSE when the setting fails.

Example:

Output:

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