Type declarations can be added to function arguments, return values, and, as of PHP 7.4.0, class properties. They ensure that the value is of the specified type ...
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Types ¶. Table of Contents ¶. Introduction · Type System · NULL · Booleans · Integers · Floating point numbers · Strings · Numeric strings · Arrays ...
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PHP is a dynamically typed language, which means that by default there is no need to specify the type of a variable, as this will be determined at runtime.
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declare ¶. (PHP 4, PHP 5, PHP 7, PHP 8). The declare construct is used to set execution directives for a block of code. The syntax of declare is similar to ...
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Resources are created and used by special functions. See the appendix for a listing of all these functions and the corresponding resource types. See also the ...
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Type Juggling ¶. PHP does not require explicit type definition in variable declaration. In this case, the type of a variable is determined by the value it ...
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When a string is specified in double quotes or with heredoc, variables are parsed within it. There are two types of syntax: a simple one and a complex one. The ...
Language Reference ¶ · Basic syntax · PHP tags · Escaping from HTML · Types · Introduction · Type System · Variables · Basics · Predefined Variables · Constants.
An array in PHP is actually an ordered map. A map is a type that associates values to keys. This type is optimized for several different uses; it can be treated ...
PHP's type system supports various atomic types that can be composed together to create more complex types. Some of these types can be written as type ...
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