PHP variable type

Introduction: This is a detailed page of PHP variable types. It introduces the related knowledge, skills, experience, and some PHP source code.

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PHP supports the following variable types:

Integer: integer

Double: Double Precision

String: String

Array: queue Array

Object: Object

Registrant DOC (only if enabled PDF support): PDF text (effective only after the start of PDF Support)

Pdfinfo (only if enabled PDF support): PDF information (effective only after the start of PDF Support)

The types of these variablesProgramIn particular, PHP sets the type based on context during runtime.

If you prefer to forcibly convert a variable to a specified type, you can also perform the "cast" Operation on the variable or use the function "settype ()".

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