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Sigil (computer programming)

en.wikipedia.org/wiki/Sigil_(computer_programming)

In computer programming, a sigil is a symbol attached to a variable name, showing the variable's datatype or scope, usually a prefix, as in $foo , where $ is the ...

Why do PHP variables need to be preceded with a dollar sign?

programmers.stackexchange.com/questions/124994/why-do-php-variables-need-to-be-preceded-with-a-dollar-sign

I understand that all PHP variables need to be preceded by a dollar sign (e.g. ... I mentioned that PHP variables need to begin with a dollar sign, and I ... I program in PHP (and many other languages) every day, and I can tell ...

syntax - Why PHP variables start with a $ sign symbol? - Stack ...

stackoverflow.com/questions/3073812/why-php-variables-start-with-a-sign-symbol

There are simply better languages out there with more features, which are more ... Prepending all variables with $ makes the code somewhat easier to parse, and fits in with the .... Can PHP be used without the dollar sign $ symbol for variables? ... Why do so many people hike with such light footwear?

PHP: Variable variables - Manual

php.net/manual/en/language.variables.variable.php

That is, a variable name which can be set and used dynamically. ... In the above example, hello, can be used as the name of a variable by using two dollar signs.

What is dollar sign $? - Computer Hope

www.computerhope.com/jargon/d/dollarsign.htm

Computer dictionary definition for what dollar sign $ means including related links, ... In languages like BASIC, Pascal, and PHP, the dollar sign is used to define ... operating system, users can hide shared folders by adding the dollar sign to ... In Excel and other spreadsheet programs, the dollar sign is used in formulas to .....

The Problem With Sigils

c2.com/cgi/wiki?TheProblemWithSigils

I see $foo as performing some unknown operation on the variable foo. ... After all, some languages use a dollar-sign or at-sign prefix as a dereference operator. ... many different languages, it is no longer acceptable for each language to do .... such situations (such as in PHP) or make it difficult or impossible (such as in Perl) .

Ruby From Other Languages

www.ruby-lang.org/en/documentation/ruby-from-other-languages/

If it starts with a dollar sign ( $ ), it is a global variable. ... In C, Python and many other languages, 0 and possibly other values, such as empty lists, are considered  ...

Web Programming with PHP - DCU

www.dcu.ie/~costelle/?q=book/export/html/2

Although the language has many features you do a surprising amount with just a few of ..... In the PHP language all variable names must start with a dollar sign.

PHP Variables - La Salle University

www.lasalle.edu/~blum/PHP/PHPVariables.ppt

PHP Variables. 2 ... Unlike many other programming languages, PHP variables do not have to be “declared. ... In PHP a variable starts with a dollar sign.

PHP variables - w3resource

www.w3resource.com/php/variables/declaring-php-variables.php

All variables in PHP start with a $ (dollar) sign followed by the name of the ... A valid variable name starts with a letter (A-Z, a-z) or underscore (_), followed by any number of ... In language such as C, C++ and Java the programmer must declare the ... In PHP the type of the variable does not need to be declared before use it, ...

More Info

Why we use dollar ($) symbol before variables in PHP? - Quora

www.quora.com

Brigitte Jellinek, I teach php to my first year students - because it can't be avoided ... In Perl there are other signs used to begin variable names too, they are ... Many other programming languages use the $ sigil in similar ways, to denote a ...

What is the purpose of PHP having a symbol (the dollar sign) in front ...

stackoverflow.com

Why PHP variables start with a $ sign symbol? I have looked at other programming languages and it seems that most of them do not have any ...

PHP: Basics - Manual

php.net

Variables in PHP are represented by a dollar sign followed by the name of the variable. ... Variable names follow the same rules as other labels in PHP. A valid variable name starts with a letter or underscore, followed by any number of letters , .... array. isset() language construct can be used to detect if a variable has been  .....