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  1. <?php
  2.  
  3. spl_autoload_register(function(string $name) {
  4.     var_dump($name);
  5.     if ($name === "Dog") {
  6.         class Dog {
  7.             function execute() {
  8.                 echo "I'm a dog." . PHP_EOL;
  9.             }
  10.         }
  11.     } else {
  12.         $class = new class {
  13.             function execute() {
  14.                 echo "I don't know who I am." . PHP_EOL;
  15.             }
  16.         };
  17.         $className = get_class($class);
  18.         class_alias($className, $name);
  19.     }
  20. });
  21.  
  22. $myClassName = "Dog";
  23. (new $myClassName())->execute();
  24.  
  25. $myOtherClassName = "Cat";
  26. (new $myOtherClassName())->execute();
  27.  
Success #stdin #stdout 0.02s 24628KB
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stdin
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Standard input is empty
stdout
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string(3) "Dog"
I'm a dog.
string(3) "Cat"
I don't know who I am.
https://ideone.com/vOMv1u
language:
PHP (php 7.3.5)
created:
3 years ago
visibility:
public

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