ctype_xdigit
소개
Variable and Type Related Extensions
PHP Manual
Data Filtering
소개
설치/설정
요구 조건
설치
실행시 설정
자원형
Types of filters
Validate filters
Sanitize filters
Other filters
예약 상수
예제
Validation
Sanitization
Filter 함수 목록
filter_has_var
— Checks if variable of specified type exists
filter_id
— Returns the filter ID belonging to a named filter
filter_input_array
— Gets external variables and optionally filters them
filter_input
— Gets a specific external variable by name and optionally filters it
filter_list
— Returns a list of all supported filters
filter_var_array
— Gets multiple variables and optionally filters them
filter_var
— Filters a variable with a specified filter
ctype_xdigit
소개
Variable and Type Related Extensions
PHP Manual