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run code in 300+ PHP versions simultaneously
<?php interface Collection { } interface Geocoder { public function geocode(): Collection; } class MyCollection implements Collection { } class MyGeocoder implements Geocoder { public function geocode(): MyCollection { return new MyCollection(); } } class Consumer { public function __construct(MyGeocoder $gecoder) { // } }
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Fatal error: Declaration of MyGeocoder::geocode(): MyCollection must be compatible with Geocoder::geocode(): Collection in /in/kv9pn on line 16
Process exited with code 255.
Output for 5.6.0 - 5.6.27
Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/kv9pn on line 9
Process exited with code 255.

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