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<?php $x= 'https://:@google.com\@php.net'; var_dump( filter_var($x, FILTER_VALIDATE_URL), parse_url($x) );
Output for 7.3.29 - 7.3.33, 7.4.21 - 7.4.33, 8.0.8 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
bool(false) array(4) { ["scheme"]=> string(5) "https" ["host"]=> string(7) "php.net" ["user"]=> string(0) "" ["pass"]=> string(12) "@google.com\" }
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 bool(false) array(4) { ["scheme"]=> string(5) "https" ["host"]=> string(7) "php.net" ["user"]=> string(0) "" ["pass"]=> string(12) "@google.com\" }
Output for 7.3.0 - 7.3.28, 7.4.0 - 7.4.20, 8.0.0 - 8.0.7
string(29) "https://:@google.com\@php.net" array(4) { ["scheme"]=> string(5) "https" ["host"]=> string(7) "php.net" ["user"]=> string(0) "" ["pass"]=> string(12) "@google.com\" }

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