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<?php function a() { return 'http://localhost'; } $hostname = a(); if ( !$port = parse_url( $hostname, PHP_URL_PORT ) ) { var_dump( "oops" ); }
Output for 5.1.2 - 7.2.0
string(4) "oops"
Output for 4.3.0 - 5.1.1
Notice: Use of undefined constant PHP_URL_PORT - assumed 'PHP_URL_PORT' in /in/ZaNOe on line 9 Warning: parse_url() expects exactly 1 parameter, 2 given in /in/ZaNOe on line 9 string(4) "oops"