What this does it creates a reference to the original variable and thus does not copy the value of the original variable.
$original_var = 500;
&$ref_var = $original_var;
//This will print the value 500
//Now we change the value of the original variable to 600
$original_var = 600;
//Now we print the value of the reference variable, and the reference variable takes the value of the original variable
echo $ref_var; //This will print 600
- You can also reference objects
- Referencing variables come in handy when trying to accomplish two task at once
NOTE: PHP 5 currently supports this
Image Credits: Photo by Isis França on Unsplash.