PHP变量中的addcslashes返回空

Question

when I try to remove special characters in a variable using the addcslashes eg addcslashes($this->description), "description" save the record in database but empty. If I remove addcslashes and just use $this->description saves normally.

Answer 1

Maybe, you can use this function:

function clean($string) {
   $string = str_replace(' ', '-', $string); // Replaces all spaces with hyphens.
   $string = preg_replace('/[^A-Za-z0-9\-]/', '', $string); // Removes special chars.

   return preg_replace('/-+/', '-', $string); // Replaces multiple hyphens with single one.
}

First sanitise the string before you send to save in DB.