Detailed explanation of how to merge the contents of multiple files into a new file in PHP

function test() { $hostdir= iconv("utf-8","gbk","C:\Users\原万里\Desktop\日常笔记") ; //iconv()转换编码方式，将UTF-8转换为gbk，若是报错在gbk后加//IGNORE $filesnames = scandir($hostdir); //scandir() 函数返回指定目录中的文件和目录的数组。默认升序排列， foreach ($filesnames as $name) { if($name!=".." && $name!=".") //遍历结果中会多出‘.'以及‘..'，没有用处，不予处理; { $cipath = $hostdir.$name; $cjfilenames = scandir($cipath); //根据情况再决定是否再向下遍历一次 foreach($cjfilenames as $cjname) { if($cjname!=".." && $cjname!="." &&!is_dir($cipath."/".$cjname)) { $str = file_get_contents($cipath."/".$cjname); file_put_contents("e:/test.txt",$str,FILE_APPEND); } } } echo "\n"; } }