How to return a variable by name from a function in PHP
In this tutorial, we’re going to see how the result of a function can be used as a name for a variable in PHP.
The name of variables can be specified depending on the return value of a function. The syntax for this is:
${ foo() } = ...;
Where foo() is any function that must return a value that is a string or at least can be converted to a string. (By the way, even an empty string may be returned).
How to return a variable by name from a function in PHP
In this example the function foo() returns the name of the variable, which is “bar”. The value “lorem” is assigned to this variable.
<?php
function foo() {
return 'bar';
}
${foo()} = 'lorem';
var_dump( ${foo()} ); //display: lorem
var_dump( $bar ); //display: lorem
?>
Output:
string(5) "lorem" string(5) "lorem"
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