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Introduction
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Predefined Variables
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Security
Introduction
General considerations
Installed as CGI binary
Installed as an Apache module
Session Security
Filesystem Security
Database Security
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Features
HTTP authentication with PHP
Cookies
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Handling file uploads
Using remote files
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Persistent Database Connections
Command line usage
Garbage Collection
DTrace Dynamic Tracing
Function Reference
Affecting PHP's Behaviour
Audio Formats Manipulation
Authentication Services
Command Line Specific Extensions
Compression and Archive Extensions
Cryptography Extensions
Database Extensions
Date and Time Related Extensions
File System Related Extensions
Human Language and Character Encoding Support
Image Processing and Generation
Mail Related Extensions
Mathematical Extensions
Non-Text MIME Output
Process Control Extensions
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PHP Function List
session_is_registered
doesn't exist. Closest matches:
session_register_shutdown
session_regenerate_id
session_reset
session_create_id
session_destroy
sessionidinterface
session_write_close
session_unset
session_start
session_id
ini_restore
session_cache_limiter
stream_filter_register
sessionhandlerinterface
session_abort
session_gc
session_save_path
session_set_save_handler
session_commit
session_encode
session_status
session_set_cookie_params
stream_wrapper_register
stream_register_wrapper
session_name
mongodb_bson_regexinterface
session_cache_expire
eio_write
ibase_restore
simdjson_is_valid
