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Getting Started: Introduction; A simple tutorial
Language Reference: Basic syntax; Types; Variables; Constants; Expressions; Operators; Control Structures; Functions; Classes and Objects; Namespaces; Enumerations; Errors; Exceptions; Fibers; Generators; Attributes; References Explained; Predefined Variables; Predefined Exceptions; Predefined Interfaces and Classes; Predefined Attributes; Context options and parameters; Supported Protocols and Wrappers

Security: Introduction; General considerations; Installed as CGI binary; Installed as an Apache module; Session Security; Filesystem Security; Database Security; Error Reporting; User Submitted Data; Hiding PHP; Keeping Current
Features: HTTP authentication with PHP; Cookies; Sessions; Handling file uploads; Using remote files; Connection handling; 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; Other Basic Extensions; Other Services; Search Engine Extensions; Server Specific Extensions; Session Extensions; Text Processing; Variable and Type Related Extensions; Web Services; Windows Only Extensions; XML Manipulation; GUI Extensions

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PHP Function List

using-https-twitter.com/websummercamp doesn't exist. Closest matches:

stats_stat_powersum
intldatepatterngenerator
variant_date_from_timestamp
imagecreatefromwebp
session_write_close
imagecreatefromwbmp
ui_controls_editablecombo
getprotobynumber
intlpartsiterator
imagecreatefrombmp
swoole_http_server
sodium_memcmp
variant_date_to_timestamp
session_get_cookie_params
recursiveiteratoriterator
session_set_cookie_params
mailparse_determine_best_xfer_encoding
zip_entry_compressionmethod
imagepalettecopy
array_uintersect
eventhttprequest
posix_initgroups
swoole_websocket_frame
stream_filter_register
stats_stat_correlation
array_uintersect_assoc
mongodb_driver_command
intl_get_error_message
mongodb_bson_timestamp
imagepalettetotruecolor

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