Php Data type conversion _ PHP Tutorial-php Tutorial

Php Data type conversion. This article mainly shares the knowledge of PHP Data type conversion. PHP Data type conversion is a forced conversion. The PHP Data types that can be converted include: (int) and (integer). This article mainly shares the knowledge of PHP Data type conversion.

PHP Data type conversion is a forced conversion. The PHP Data types that can be converted include:

(Int), (integer): convert to integer
(Float), (double), (real): convert to floating point type
(String): convert to a string
(Bool), (boolean): convert to boolean type
(Array): convert to an array
(Object): convert to object

There are three conversion methods for PHP Data types:

(1) add the target type enclosed in parentheses before the variable to be converted, for example:

(Int) (bool) (float) (string) (array) (object) is described in the following example:

 
(2) use three types of conversion functions: intval (), floatval (), and strval (). The example is as follows:
  
(3) use the common type conversion function settype (mixed var, string type). The example is as follows:
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