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<?php class LazyValue { public function __construct( private Closure $lazy, ){} public function getValue() { static $value = ($this->lazy)(); return $value; } } $t1 = new LazyValue(function () { echo "slow\n"; return "42\n"; }); echo $t1->getValue(); echo $t1->getValue(); echo $t1->getValue();
Output for git.master, git.master_jit, rfc.property-hooks
slow 42 42 42

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