How can you access a variable variable in PHP using concatenation?

In PHP, you can access a variable variable by using concatenation with curly braces {}. This allows you to dynamically access a variable whose name is stored in another variable. By using concatenation, you can create the variable name on the fly and access its value. 

$variableName = 'myVariable';
$myVariable = 'Hello, World!';

echo ${$variableName}; // This will output: Hello, World!

Keywords

PHP variable variable concatenation accessing syntax

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