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run code in 300+ PHP versions simultaneously
<?php var_dump(parse_url('//foo.com'), parse_url('//foo.com:80'));
Output for 5.5.24 - 5.5.38, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 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 - 8.3.7
array(1) { ["host"]=> string(7) "foo.com" } array(2) { ["host"]=> string(7) "foo.com" ["port"]=> int(80) }
Output for 5.4.7 - 5.4.45, 5.5.0 - 5.5.23, 5.6.0 - 5.6.7
array(1) { ["host"]=> string(7) "foo.com" } bool(false)
Output for 5.3.3 - 5.3.29, 5.4.0 - 5.4.6
array(1) { ["path"]=> string(9) "//foo.com" } bool(false)
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.2
Warning: parse_url(//foo.com:80): Unable to parse URL in /in/b02G4 on line 3 array(1) { ["path"]=> string(9) "//foo.com" } bool(false)
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Warning: parse_url(//foo.com:80): Unable to parse url in /in/b02G4 on line 3 array(1) { ["path"]=> string(9) "//foo.com" } bool(false)
Output for 4.3.0 - 4.3.1
array(1) { ["path"]=> string(9) "//foo.com" } array(2) { ["host"]=> string(9) "//foo.com" ["port"]=> int(80) }

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