一般情况下，WordPress是默认不会对上传文件进行改名，这样同名文件会不断被加后缀，那么如何对WordPress上传的图片进行改名并加上时间戳？
另一方面，如果文件名里面有中文字符的话，还有可能出现乱码的情况。比如中文字符后缀的就可能出现上传失败。
现在提供一个钩子，让上传文件时自动改名
/**
* //wordpress对上传的图片重名，加上时间戳
*
*/
add_filter( \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’wp_handle_upload_prefilter\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’, function($file){
// print_r($file);
$info = pathinfo($file[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’name\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’]);
// print_r($info);
//显示带有文件扩展名的文件名
$filename = $file[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’filename\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’];
$ext = empty($info[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’extension\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’]) ? \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’ : \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’.\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’ . $info[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’extension\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’];
$file[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’name\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’] = md5($filename.\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’-\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’.time()).$ext;
//文件名称小于15位时，才改名
// if(strlen($file[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’name\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’])<=15)
// {
// $file[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’name\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’] = time().\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’-\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’.$file[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’name\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’];
//$file[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’name\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’] = substr(md5($file[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’name\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’]), 0, 6).\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’-\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’.time();
// }
return $file;
});
以上就是WordPress主题站小编为大家分享的对WordPress上传的图片进行改名并加上时间戳的方法。