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PHP Manual

feof

(PHP 4, PHP 5)

feofTests for end-of-file on a file pointer

설명

bool feof ( resource $handle )

Tests for end-of-file on a file pointer.

인수

handle

파일 포인터는 fopen(), fsockopen()을 통하여 성공적으로 열려, fclose()로 닫지 않은 유효한 파일이여야 합니다.

반환값

Returns TRUE if the file pointer is at EOF or an error occurs (including socket timeout); otherwise returns FALSE.

주의

Warning

If a connection opened by fsockopen() wasn't closed by the server, feof() will wait until a timeout has been reached to return TRUE. The default timeout value is 60 seconds. You may use stream_set_timeout() to change this value.

Warning

If the passed file pointer is not valid you may get an infinite loop, because feof() fails to return TRUE.

Example #1 feof() example with an invalid file pointer

<?php
// if file can not be read or doesn't exist fopen function returns FALSE
$file = @fopen("no_such_file""r");

// FALSE from fopen will issue warning and result in infinite loop here
while (!feof($file)) {
}

fclose($file);
?>


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