php - 上传图片名称

Question

我正在将图像的名称上传到数据库！

问题是名称在数据库中，名称前有一个空格！

问题出在哪里？

$original_name = strtolower(trim($arquivo['name']));
$caracteres = array("ç","~","^","]","[","{","}",";",":","´",",",">",
                   "<","-","/","|","@","$","%","ã","â","á","à","é",
                  "è","ó","§","ò","+","=","*","&","(",")","!","#","?",
                  "`","ã"," ","©","£");

$original_name = str_replace(' ', '', $original_name);
$final_name = str_replace($caracteres,"",$original_name);

Answer 1

我建议使用允许字符的白名单，例如[a-zA-Z0-9_]

并使用：

$final_name = preg_replace("#[^a-z0-9_]+#i", "", $arquivo['name']);