受@Jason 回答的启发,我创建了一个我认为更短且更易读的文件名格式的函数。
function newName($path, $filename) {
$res = "$path/$filename";
if (!file_exists($res)) return $res;
$fnameNoExt = pathinfo($filename,PATHINFO_FILENAME);
$ext = pathinfo($filename, PATHINFO_EXTENSION);
$i = 1;
while(file_exists("$path/$fnameNoExt ($i).$ext")) $i++;
return "$path/$fnameNoExt ($i).$ext";
}
例子:
$name = "foo.bar";
$path = 'C:/Users/hp/Desktop/ikreports';
for ($i=1; $i<=10; $i++) {
$newName = newName($path, $name);
file_put_contents($newName, 'asdf');
}
新版本(2022):
function newName2($fullpath) {
$path = dirname($fullpath);
if (!file_exists($fullpath)) return $fullpath;
$fnameNoExt = pathinfo($fullpath,PATHINFO_FILENAME);
$ext = pathinfo($fullpath, PATHINFO_EXTENSION);
$i = 1;
while(file_exists("$path/$fnameNoExt ($i).$ext")) $i++;
return "$path/$fnameNoExt ($i).$ext";
}
用法:
for ($i=1; $i<=10; $i++) {
$newName = newName2($fullpath);
file_put_contents($newName, 'asdf');
}