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PHP 8.1.34 Released!

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

page.php?page=about_how_import doesn't exist. Closest matches:

pg_lo_import
gmp_import
gnupg_import
pg_lo_export
fbird_blob_import
ibase_blob_import
phpdbg_prompt
mailparse_msg_extract_whole_part_file
cubrid_lob2_import
runkit7_import
imagecreatefromwbmp
imageresolution
date_default_timezone_set
date_default_timezone_get
mailparse_msg_extract_part
geoip_db_get_all_info
imagegetinterpolation
luasandboxruntimeerror
trader_get_compat
imagegammacorrect
uopz_get_property
trader_set_compat
phpdbg_color
imagegetclip
fann_get_sarprop_temperature
fdf_set_on_import_javascript
pg_port
imagepalettetotruecolor
imagecreatefrombmp
fann_get_num_input

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