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<?php class Animal { public function eat() { echo 'Yummy!'; } } class Plant { public $size = 0; public function grow() { echo 'I\'m level '.++$this->size; } } if (rand(0, 1) == 0) $base = 'Animal'; else $base = 'Plant'; class_alias($base, "LifeformBase"); class Lifeform extends LifeformBase { } var_dump(new Lifeform); // similar for ReflectionClass, you just need to fetch the name // inheritance by anonymous class; also requires an object representing the anonymous class, like Closure is for anonymous functions. function get_base_animal_class() { return new class extends Animal { public $color; public function hiss() { echo 'Hiss!'; } }; } class_alias(get_class(get_base_animal_class()), "AnonBase"); $tiger_class = new class extends AnonBase { public $color = 'orange'; }; var_dump($tiger_class->hiss(), $tiger_class->color);
Output for 7.0.0 - 7.0.3, 7.0.7, 7.0.9, 7.0.14, 7.0.16, 7.0.19, 7.0.21, 7.0.23 - 7.0.25, 7.0.30 - 7.0.32, 7.1.1 - 7.1.5, 7.1.7, 7.1.9 - 7.1.11, 7.1.15 - 7.1.17, 7.1.20 - 7.1.22, 7.1.24, 7.1.26 - 7.1.28, 7.1.31 - 7.1.32, 7.2.1, 7.2.4, 7.2.6, 7.2.8 - 7.2.9, 7.2.11, 7.2.13 - 7.2.14, 7.2.16 - 7.2.17, 7.2.20 - 7.2.22, 7.2.26, 7.2.31, 7.2.33 - 7.2.34, 7.3.0 - 7.3.1, 7.3.3 - 7.3.4, 7.3.8, 7.3.11 - 7.3.15, 7.3.17 - 7.3.19, 7.3.22, 7.3.24 - 7.3.25, 7.3.27, 7.3.29 - 7.3.33, 7.4.3 - 7.4.4, 7.4.6, 7.4.9 - 7.4.10, 7.4.14, 7.4.16 - 7.4.18, 7.4.20 - 7.4.21, 7.4.23, 7.4.27 - 7.4.28, 7.4.32, 8.0.5 - 8.0.11, 8.0.13, 8.0.15 - 8.0.16, 8.0.19 - 8.0.21, 8.0.24 - 8.0.27, 8.0.29, 8.1.1 - 8.1.2, 8.1.5 - 8.1.6, 8.1.10 - 8.1.11, 8.1.13, 8.1.15, 8.1.19 - 8.1.21, 8.1.24 - 8.1.26, 8.2.1, 8.2.3, 8.2.6 - 8.2.10, 8.2.12, 8.3.0
object(Lifeform)#1 (1) { ["size"]=> int(0) } Hiss!NULL string(6) "orange"
Output for 7.0.4 - 7.0.6, 7.0.8, 7.0.10 - 7.0.13, 7.0.15, 7.0.17 - 7.0.18, 7.0.20, 7.0.22, 7.0.26 - 7.0.29, 7.0.33, 7.1.0, 7.1.6, 7.1.8, 7.1.12 - 7.1.14, 7.1.18 - 7.1.19, 7.1.23, 7.1.25, 7.1.29 - 7.1.30, 7.1.33, 7.2.0, 7.2.2 - 7.2.3, 7.2.5, 7.2.7, 7.2.10, 7.2.12, 7.2.15, 7.2.18 - 7.2.19, 7.2.23 - 7.2.25, 7.2.27 - 7.2.30, 7.2.32, 7.3.2, 7.3.5 - 7.3.7, 7.3.9 - 7.3.10, 7.3.16, 7.3.20 - 7.3.21, 7.3.23, 7.3.26, 7.3.28, 7.4.0 - 7.4.2, 7.4.5, 7.4.7 - 7.4.8, 7.4.11 - 7.4.13, 7.4.15, 7.4.19, 7.4.22, 7.4.24 - 7.4.26, 7.4.29 - 7.4.30, 7.4.33, 8.0.0 - 8.0.3, 8.0.12, 8.0.14, 8.0.17 - 8.0.18, 8.0.22 - 8.0.23, 8.0.28, 8.0.30, 8.1.0, 8.1.3 - 8.1.4, 8.1.7 - 8.1.9, 8.1.12, 8.1.14, 8.1.16 - 8.1.18, 8.1.22 - 8.1.23, 8.2.0, 8.2.2, 8.2.4 - 8.2.5, 8.2.11, 8.2.13
object(Lifeform)#1 (0) { } Hiss!NULL string(6) "orange"
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Parse error: syntax error, unexpected 'class' (T_CLASS) in /in/SKWdW on line 23
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_CLASS in /in/SKWdW on line 23
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_CLASS, expecting T_STRING or T_VARIABLE or '$' in /in/SKWdW on line 23
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_CLASS, expecting T_STRING or T_VARIABLE or '$' in /in/SKWdW on line 23
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/SKWdW on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/SKWdW on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/SKWdW on line 4
Process exited with code 255.

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