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PHP 8.3.21 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

pdf-utf8-to-utf16 doesn't exist. Closest matches:

imap_utf8_to_mutf7
imap_utf8
ps_setfont
ldap_8859_to_t61
utf8_decode
fdf_get_opt
ps_findfont
date_format
idn_to_utf8
fdf_set_opt
utf8_encode
solrinputdocument
gdfont
apcuiterator
substr_count
finfo_buffer
imap_mutf7_to_utf8
sodium_crypto_auth
pg_get_notify
imap_fetchstructure
sodium_crypto_auth_verify
snmp_set_oid_output_format
fdf_set_target_frame
imap_fetchtext
ftp_get_option
db2_autocommit
appenditerator
fdf_get_status
fdf_set_status
iterator_count

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