Page Text: How to add PHP method chaining or create a fluent interface?
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Sometimes, we want to add PHP method chaining or create a fluent interface.
In this article, we’ll look at how to add PHP method chaining or create a fluent interface.
How to add PHP method chaining or create a fluent interface?
To add PHP method chaining or create a fluent interface, we return $this in our object.
For instance, we write
str = ""; } function addA() { $this->str .= "a"; return $this; } function addB() { $this->str .= "b"; return $this; } function getStr() { return $this->str; } } $a = new FakeString(); echo $a->addA()->addB()->getStr();
to create the FakeString class.
In it, we have the addA and addB return $this, which is the class instance, after concatenating a string to $this->str.
As a result, we can chain addA and addB like
$a->addA()->addB()->getStr()
since addA returns the class instance, which we use to call addB.
Conclusion
To add PHP method chaining or create a fluent interface, we return $this in our object.
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