Personally, I've always concatenated my strings, because I use UEStudio, and it highlights PHP variables with a different color when concatenated. Can I hedge my household expenses using the financial markets? // but the curly brace form works as does getting at them Thank you for the detailed explanation. can play around even more! be any expression which results in a valid variable name Now, there are two ways you can define a variable in a string – simple syntax which is the most used method of defining variable inside a string and complex syntax which uses curly braces to define variables. But if characters such as tab (\t), new-line (\n) are used, they must be within double quotations. : $greeting = "Welcome, {$user['name']}!";. The strings within the curly braces browse my other articles. needn’t necessarily strictly adhere to the normal variable naming conventions! Therefore as a standard, braces are used if variable interpolation is used, instead of concatenation. This is not what this question is about. Stack Overflow for Teams is a private, secure spot for you and Do any other countries take as long as the US to transfer government power following an election? Further dereferencing a variable property that is an array has different semantics between PHP 5 and PHP 7. from which email account does the following contact-form code sent email from? Does hillbilly slang fall under a type of English language and if not, what is it called? Conflict between Poisson confidence interval and p-value. Now, see the above example using curly braces-. Finally, lets get really crazy. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. The PHP 7.0 migration guide includes further details on the types of expressions that have changed, and how to place curly braces to avoid ambiguity. How can I print literal curly-brace characters in python string and also use .format on it? ... you can take a look to the Variable parsing - Complex (curly) syntax section of the PHP manual. Team members are afraid to engage in standup or discuss blocking issues affecting their work. Generally variable interpolation is slow, but concatenation may also be slower if you have too many variables to concatenate. Or, when you finally get this dang " vs. ' war down and realize that it doesn't matter because you are susceptible to XSS using either technique without properly encoding and validating all inputs. Can employer legally stop paying time & 1/2 to exempt employee after stating in the offer that they would do so? How to concatenate items in a list to a single string? When do we need curly braces around shell variables? Output: If you liked this article, you may want to Can we recover? Therefore decide depending on how many variables among other characters. New here? Could someone be convinced they are a robot?
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