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<?php $str = "days=Mon&days=Wed" . "&fruit[1]=Apple&fruit[]=Banana&amp;age=13"; parse_str($str, $output); // gettype will return 'array' or 'string' echo gettype($output['days']); echo ' - '; // array_search will return the key // where the first argument is located echo array_search('Banana', $output['fruit']); echo ' - '; echo array_key_exists('amp;age', $output) ? $output['amp;age'] : 0; ?>
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
string - 2 - 13

preferences:
237.54 ms | 405 KiB | 374 Q