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<?php $str = file_get_contents('http://stackoverflow.com/questions/17520093/read-large-data-from-csv-file-in-php'); echo mb_detect_encoding($str, 'UTF-8', true);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: file_get_contents(): php_network_getaddresses: getaddrinfo for stackoverflow.com failed: System error in /in/uAi4h on line 3 Warning: file_get_contents(http://stackoverflow.com/questions/17520093/read-large-data-from-csv-file-in-php): Failed to open stream: php_network_getaddresses: getaddrinfo for stackoverflow.com failed: System error in /in/uAi4h on line 3 UTF-8

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