<?php
$filePath = "log.txt";
$content = "1234567890";
$size1 = filesize($filePath);
echo "size1:$size1\n";
$fp = fopen($filePath, "wb+");
fseek($fp, $size1);
fwrite($fp, $content);
fclose($fp);
$size2 = filesize($filePath);
echo "size2:$size2\n";
?> 最佳答案
