Only named variables may be assigned by reference. : Variable Reference « Language Basics « PHP

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PHP » Language Basics » Variable Reference

Only named variables may be assigned by reference.


 

<?php

    $foo = 25;

    $bar = &$foo; // This is a valid assignment.

    

    function test() {

        return 25;

    }

    $bar = &test(); // Invalid.

?>

Related examples in the same category

1.	$b is assigned a copy of $a, and in the second part, $b is assigned a reference to $a.
2.	& operator creates a reference
3.	Create a reference to a variable with the name of the constant's value.
4.	Passing by Reference in PHP
5.	Passing arrays by reference

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