3v4l.org

run code in 500+ PHP versions simultaneously
<?php interface Geocoder {} interface GeocoderThatSupportsBounds {} class Base implements Geocoder{ public function speak() { return 'Foo'; } } class Google extends Base implements GeocoderThatSupportsBounds { public function speak() { return 'Bar'; } } // Third party library that expects a geocoder function normalGeocode(Geocoder $foo) { echo $foo->speak(); } // Special geocoder function geocodeWithBounds(GeocoderThatSupportsBounds $foo) { echo $foo->speak(); } $bar = new Google; normalGeocode($bar); geocodeWithBounds($bar);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
BarBar

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32.31 ms | 1139 KiB | 8 Q