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PHP Sanitization Filters

There are many filters for sanitization as below:

FILTER_SANITIZE_EMAIL – It removes all characters except letters, digits and !#$%^&*_+=.{|}~@.[].
FILTER_SANITIZE_NUMBER_FLOAT – It removes all characters except digits, +- and .,eE.
FILTER_SANITIZE_NUMBER_INT – It removes all characters except digits, +-.
FILTER_SANITIZE_URL – It removes all characters except letters, digits and $-_+!*’(),{}|\\^~[]`<>#%”;/?:@&=.
FILTER_SANITIZE_ENCODED – It removes or encodes the special characters.
FILTER_SANITIZE_MAGIC_QUOTES – It apply addslashes().
FILTER_SANITIZE_SPECIAL_CHARS – It removes special characters.
FILTER_SANITIZE_STRING – It removes tags/special characters from a string.
FILTER_SANITIZE_STRIPPED – It also does the same function as the sanitize string function.

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