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<?php $graph = [ "CityB" => ["0" => "1", "1" => "CityA", "done" => "no"], "CityA" => ["0" => "1", "1" => "CityC", "done" => "no"], "CityD" => ["0" => "1", "1" => "CityD", "done" => "yes"], "CityC" => ["0" => "5", "1" => "CityA", "done" => "no"] ]; $result = []; foreach ($graph as $key => $row) { if ($row['done'] === 'no' && (!isset($result[$key]) || $row[0] < $result[$key])) { $result[$key] = $row[0]; } } echo key($result) ?? 'No "done => no" rows';
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7
CityB
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 CityB
preferences:
157.97 ms | 402 KiB | 178 Q