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PHP Variable Handling Reference : Check whether a variable is a boolean or not
The is_bool() function checks whether a variable is a boolean or not.
This function returns true (1) if the variable is a boolean, otherwise it returns false/nothing.
Parameter | Description |
---|---|
variable | Required. Specifies the variable to check |
Return Value: | TRUE if variable is a boolean, FALSE otherwise |
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Return Type: | Boolean |
PHP Version: | 4.0+ |
❮ PHP Variable Handling Reference