In PHP, method chaining is a technique that allows you to call multiple methods on an object in a single line of code. However, when instantiating a new object, it is initially not possible to chain methods directly due to limitations in PHP's syntax.
PHP 5.4+ Solution
With the introduction of PHP 5.4, a more convenient solution was introduced. You can wrap the object instantiation in parentheses:
<code class="php">(new Foo())->xyz();</code>
Prior to PHP 5.4
Before PHP 5.4, you could not chain methods directly after object instantiation using the new syntax. Instead, one workaround was to create a static instantiation method:
<code class="php">class Foo { // ... static public function instantiate() { return new self(); } } $a = Foo::instantiate()->xyz();</code>
Conclusion
Method chaining on newly created objects is now seamlessly integrated into PHP 5.4 and later versions. The parentheses notation provides a concise and intuitive way to initialize and modify objects in a single line.
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