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<?php function sum($a) { return new Sum($a); } class Sum { protected $value; public function __construct($value) { $this->value = $value; } public function __invoke($a) { return new static($this->value + $a); } public function __toString() { return $this->value; } } echo sum(1)(2)(3)(4)(5); //10
Output for git.master, git.master_jit, rfc.property-hooks
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