Missing constant of default flag: FILTER_FLAG_NONE
PHP - Manual: Filter flags
2024-11-14
Filter flags
| ID | Used with | Description |
|---|---|---|
FILTER_FLAG_STRIP_LOW |
FILTER_SANITIZE_ENCODED,
FILTER_SANITIZE_SPECIAL_CHARS,
FILTER_SANITIZE_STRING,
FILTER_UNSAFE_RAW
|
Strips characters that have a numerical value <32. |
FILTER_FLAG_STRIP_HIGH |
FILTER_SANITIZE_ENCODED,
FILTER_SANITIZE_SPECIAL_CHARS,
FILTER_SANITIZE_STRING,
FILTER_UNSAFE_RAW
|
Strips characters that have a numerical value >127. |
FILTER_FLAG_STRIP_BACKTICK |
FILTER_SANITIZE_ENCODED,
FILTER_SANITIZE_SPECIAL_CHARS,
FILTER_SANITIZE_STRING,
FILTER_UNSAFE_RAW
|
Strips backtick characters. |
FILTER_FLAG_ALLOW_FRACTION |
FILTER_SANITIZE_NUMBER_FLOAT
|
Allows a period (.) as a fractional separator in
numbers.
|
FILTER_FLAG_ALLOW_THOUSAND |
FILTER_SANITIZE_NUMBER_FLOAT,
FILTER_VALIDATE_FLOAT
|
Allows a comma (,) as a thousands separator in
numbers.
|
FILTER_FLAG_ALLOW_SCIENTIFIC |
FILTER_SANITIZE_NUMBER_FLOAT
|
Allows an e or E for scientific
notation in numbers.
|
FILTER_FLAG_NO_ENCODE_QUOTES |
FILTER_SANITIZE_STRING
|
If this flag is present, single (') and double
(") quotes will not be encoded.
|
FILTER_FLAG_ENCODE_LOW |
FILTER_SANITIZE_ENCODED,
FILTER_SANITIZE_STRING,
FILTER_SANITIZE_RAW
|
Encodes all characters with a numerical value <32. |
FILTER_FLAG_ENCODE_HIGH |
FILTER_SANITIZE_ENCODED,
FILTER_SANITIZE_SPECIAL_CHARS,
FILTER_SANITIZE_STRING,
FILTER_SANITIZE_RAW
|
Encodes all characters with a numerical value >127. |
FILTER_FLAG_ENCODE_AMP |
FILTER_SANITIZE_STRING,
FILTER_SANITIZE_RAW
|
Encodes ampersands (&).
|
FILTER_NULL_ON_FAILURE |
any FILTER_VALIDATE_*
|
Returns null for unrecognized values.
|
FILTER_FLAG_ALLOW_OCTAL |
FILTER_VALIDATE_INT
|
Regards inputs starting with a zero (0) as octal
numbers. This only allows the succeeding digits to be
0-7.
|
FILTER_FLAG_ALLOW_HEX |
FILTER_VALIDATE_INT
|
Regards inputs starting with 0x or
0X as hexadecimal numbers. This only allows
succeeding characters to be a-fA-F0-9.
|
FILTER_FLAG_EMAIL_UNICODE |
FILTER_VALIDATE_EMAIL
|
Allows the local part of the email address to contain Unicode characters. |
FILTER_FLAG_IPV4 |
FILTER_VALIDATE_IP
|
Allows the IP address to be in IPv4 format. |
FILTER_FLAG_IPV6 |
FILTER_VALIDATE_IP
|
Allows the IP address to be in IPv6 format. |
FILTER_FLAG_NO_PRIV_RANGE |
FILTER_VALIDATE_IP
|
Fails validation for the following private IPv4 ranges:
Fails validation for the IPv6 addresses starting with
|
FILTER_FLAG_NO_RES_RANGE |
FILTER_VALIDATE_IP
|
Fails validation for the following reserved IPv4 ranges:
Fails validation for the following reserved IPv6 ranges:
These are the ranges that are marked as Reserved-By-Protocol in » RFC 6890. |
FILTER_FLAG_SCHEME_REQUIRED |
FILTER_VALIDATE_URL
|
Requires the URL to contain a scheme part. |
FILTER_FLAG_HOST_REQUIRED |
FILTER_VALIDATE_URL
|
Requires the URL to contain a host part. |
FILTER_FLAG_PATH_REQUIRED |
FILTER_VALIDATE_URL
|
Requires the URL to contain a path part. |
FILTER_FLAG_QUERY_REQUIRED |
FILTER_VALIDATE_URL
|
Requires the URL to contain a query string. |
FILTER_REQUIRE_SCALAR |
Requires the value to be scalar. | |
FILTER_REQUIRE_ARRAY |
Requires the value to be an array. | |
FILTER_FORCE_ARRAY |
If the value is a scalar, it is treated as array with the scalar value as only element. |
更新日志
| 版本 | 说明 |
|---|---|
| 7.3.0 |
The explicit usage of FILTER_FLAG_SCHEME_REQUIRED
and FILTER_FLAG_HOST_REQUIRED has been deprecated.
|
| 7.1.0 |
FILTER_FLAG_EMAIL_UNICODE has been added.
|
add a note
User Contributed Notes 2 notes
sergey dot karavay at gmail dot com ¶
1 year ago
FILTER_NULL_ON_FAILURE works not only with FILTER_VALIDATE_BOOLEAN, but also with FILTER_VALIDATE_INT, FILTER_VALIDATE_FLOAT
IT
PHP
编程语言
Linux
开发编程
科技
Elasticsearch
HTML/CSS/XML
网络
JAVA
NoSQL
数据库
面试
C/C++
Golang
Git
算法
操作系统
正则表达式
Redis
互联网
MySql
JavaScript
运维
软件
国际
架构设计
Mac OS
TCP/IP
Excel
Vim
Windows
Socket
Oracle
VR
MongoDB
Python
运营
MemCache
商业
硬件
电子
娱乐
设计
nginx
摄影
游戏
WordPress
HTTP
团建
数码电器
广告
--
php7 安装fileinfo扩展
preg_split — 通过一个正则表达式分隔字符串
php位值,解决 PHP 中 usort 在值相同时改变原始位置的问题
[PHP] inet_pton/inet_ntop IP地址转换函数
array_multisort() 多字段排序
PHPMailer设置utf8 PHPMailer字符集CharSet
ADORecordSet对象
adodb手册
PHP 8.1
[鸟哥]PHP_INT_MIN 和 -9223372036854775808
opcache预加载
Composer的Packagist资源
mysql面试题
[鸟哥]PHP FFI详解 - 一种全新的PHP扩展方式
PHP7添加redis扩展
PHP mkdir()写出来的权限与mode值不符合
Packagist / Composer 中国全量镜像
支持php7的性能采集扩展
php $_SERVER中的SERVER_NAME 和HTTP_HOST的区别
adodb连接mysql多个数据库的问题