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run code in 150+ php & hhvm versions
Bugs & Features
<?php class Pet { public $name; public function __construct ( $name ) { $this->name = $name; } public function speak ($what) { return $what; } } class Dog extends Pet { // Le he metido el null para que el parametro sea opcional public function speak ( $what = null ) { return $what ? parent::speak($what) : 'Woof Woof!'; /* // Otra alternativa para meter codigo mas complicado seria: if($what) return parent::speak($what); return 'Woof Woof'; */ } public function plays() { return 'fetch'; } } $charlie = new Dog ( 'Charlie' ); echo 'The dog\'s name is ' . $charlie->name . PHP_EOL; echo 'Speak of the super class: ' . $charlie->speak('hello, my name is ' . $charlie->name) . PHP_EOL; echo 'Speak of the dog class: ' . $charlie->speak() . PHP_EOL;
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
The dog's name is Charlie Speak of the super class: hello, my name is Charlie Speak of the dog class: Woof Woof!
Output for 5.0.2 - 5.2.17
Strict Standards: Declaration of Dog::speak() should be compatible with that of Pet::speak() in /in/T8pXB on line 41 The dog's name is Charlie Speak of the super class: hello, my name is Charlie Speak of the dog class: Woof Woof!
Output for 5.0.0 - 5.0.1
Strict Standards: Declaration of Dog::speak() should be compatible with that of Pet::speak() in /in/T8pXB on line 41 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/T8pXB on line 45 The dog's name is CharliePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/T8pXB on line 46 Speak of the super class: hello, my name is CharliePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/T8pXB on line 47 Speak of the dog class: Woof Woof!PHP_EOL
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/T8pXB on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/T8pXB on line 5
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/T8pXB on line 5
Process exited with code 255.