1.2.271. Could Be Stringable¶
Stringableis an interface that marks classes with a custom method to cast the object as a string. It was introduced in PHP 8.0.
Classes that defined a __toString() magic method may be turned into a string when the typehint, argument, return or property, requires it. This is not the case when strict_types is activated. Yet, until PHP 8.0, there was nothing to identify a class as such.
<?php
// This class may implement Stringable
class x {
function __tostring() {
return 'asd';
}
}
echo (new x);
?>
See also PHP RFC: Add Stringable interface and The Stringable interface.
1.2.271.1. Suggestions¶
Add implements stringable to the class definition
Add extends stringable to the interface definition
1.2.271.2. Specs¶
Short name |
Classes/CouldBeStringable |
Rulesets |
|
Exakat since |
2.1.9 |
PHP Version |
With PHP 8.0 and more recent |
Severity |
Minor |
Time To Fix |
Quick (30 mins) |
Precision |
Very high |
Features |
stringable, string, magic-method |
Note |
This issue may lint but will not run |
Available in |