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PHP 8.4.2 Released!
Getting Started
Introduction
A simple tutorial
Language Reference
Basic syntax
Types
Variables
Constants
Expressions
Operators
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Functions
Classes and Objects
Namespaces
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Errors
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References Explained
Predefined Variables
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Supported Protocols and Wrappers
Security
Introduction
General considerations
Installed as CGI binary
Installed as an Apache module
Session Security
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Function Reference
Affecting PHP's Behaviour
Audio Formats Manipulation
Authentication Services
Command Line Specific Extensions
Compression and Archive Extensions
Cryptography Extensions
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Date and Time Related Extensions
File System Related Extensions
Human Language and Character Encoding Support
Image Processing and Generation
Mail Related Extensions
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PHP Function List
使用filter_var
doesn't exist. Closest matches:
filter_var
filter_has_var
filter_var_array
filter_id
trader_var
filter_input_array
filter_list
iterator
intliterator
filter_input
filesystemiterator
filteriterator
trader_atr
trader_sar
preg_filter
trader_natr
deflate_add
inflate_add
stream_filter_remove
imagefilter
stream_filter_append
trader_adxr
infiniteiterator
get_defined_vars
stream_filter_prepend
apcuiterator
globiterator
dateinterval
array_filter
trader_aroon
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