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run code in 150+ php & hhvm versions
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<?php $hostname = 'localhost'; var_dump(parse_url($hostname, PHP_URL_HOST)); var_dump(parse_url($hostname, PHP_URL_PORT)); list($hostname, $port) = @explode(':', 'localhost'); var_dump($hostname); var_dump($port);
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
NULL NULL Notice: Undefined offset: 1 in /in/KRrl7 on line 6 string(9) "localhost" NULL
Output for hhvm-3.10.0 - 3.13.2
NULL NULL Notice: Undefined index: 1 in /in/KRrl7 on line 6 string(9) "localhost" NULL
Output for 5.1.2 - 5.2.17
NULL NULL Notice: Undefined offset: 1 in /in/KRrl7 on line 6 string(9) "localhost" NULL
Output for 4.3.0 - 5.1.1
Notice: Use of undefined constant PHP_URL_HOST - assumed 'PHP_URL_HOST' in /in/KRrl7 on line 3 Warning: parse_url() expects exactly 1 parameter, 2 given in /in/KRrl7 on line 3 NULL Notice: Use of undefined constant PHP_URL_PORT - assumed 'PHP_URL_PORT' in /in/KRrl7 on line 4 Warning: parse_url() expects exactly 1 parameter, 2 given in /in/KRrl7 on line 4 NULL Notice: Undefined offset: 1 in /in/KRrl7 on line 6 string(9) "localhost" NULL