php通过指针来标记小说章节位置
$fileName = "./test.txt";
$handle = @fopen($fileName, "r");
$arr = array();
$temp = array();
//临时指针
$tempPointer = 0;
while (!feof($handle)) {
//获得一行,指针移位下一行
$item = fgets($handle, 4096);
//如果是章节,存入章节指针位置
if(preg_match("/第[0-9一二两三四五六七八九十百千万]+章(.*)\r\n/",$item,$matches)){
$fileChapterPointerArr[trim($item)] = $tempPointer;//指针移位,获取上一行指针
}else{
$tempPointer = ftell($handle);
}
}
fclose($handle);
$handle = @fopen($fileName, "r");
foreach ($fileChapterPointerArr as $k=>$v) {
//移动文件指针到50
fseek($handle,$v);
//读取50-100字节处的内容 50=100-50
$length = next($fileChapterPointerArr)-$v>0 ? next($fileChapterPointerArr)-$v : 99999;//99999待优化
$content = fread($handle,$length);
echo '<hr/>';
echo $content;
}
