Summary and sharing of common data types in PHP

Source: Internet
Author: User
This article lists Common Data Types in PHP. For more information, see

This article lists Common Data Types in PHP. For more information, see

PHP Data Type

PHP supports eight primitive types ).

Four scalar types:
String (string)
Integer)
Float (float, also double)
Boolean (boolean)

Two composite types:
Array)
Object)

Two special types:
Resource)
NULL)

View variable types

The gettype () function allows you to conveniently view the type of a variable:

The Code is as follows:


(PS: T good php q buckle: 276167802, verification: csl)


Prompt

For historical reasons, for float data, the gettype () function returns double instead of float.
To view the value and type of an expression, use the var_dump () function.

Judge variable type

To determine the next logical action by determining the variable type, use the is_type series functions instead of gettype:

The Code is as follows:




The above is a summary of the PHP Data Types in this article. I hope this article will help the majority of php developers. Thank you for reading this article.
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