今天WordPress主题站为大家分享一个WordPress实现上传文件自动重命名方法。
1.按时间重命名
上传文件时会以“年月日时分秒+千位毫秒整数”的格式重命名文件，如“20201012104831765.jpg”
//wordpress上传文件重命名
function git_upload_filter($file) {
$time = date(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”YmdHis\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”);
$file[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’name\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’] = $time . \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\” . mt_rand(1, 100) . \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”.\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\” . pathinfo($file[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’name\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’], PATHINFO_EXTENSION);
return $file;
}
add_filter(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’wp_handle_upload_prefilter\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’, \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’git_upload_filter\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’);
2.用MD5加密生成数字并重命名
名称规则是由系统自动生成的一个32位的MD5加密文件名，由于默认生成的32位文件名有点长，所以使用substr(md5($name), 0, 20) 截断将其设置为20位。
function rename_filename($filename) {
$info = pathinfo($filename);
$ext = emptyempty($info[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’extension\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’]) ? \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’ : \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’.\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’ . $info[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’extension\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’];
$name = basename($filename, $ext);
return substr(md5($name), 0, 20) . $ext;
}
add_filter(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’sanitize_file_name\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’, \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’rename_filename\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’, 10);
使用方法
将代码添加到当前主题functions.php模板文件中即可。