I don"t want to use the file_get_contents function because the file is too large
I don"t want to use the file_get_contents function because the file is too large
$fp = fopen('a.txt', 'r+');
fseek($fp, 1024);
fwrite($fp, str_repeat('a', 30));
fclose($fp);use the SplFileObject class extended by SPL to handle large files
$oFile = new SplFileObject($filename,'w');
$oFile->fseek(1024,SEEK_SET);
$oFile->fwrite(str_repeat('a',30));
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