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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

release_4_4_4.php</url doesn't exist. Closest matches:

parse_url
readline_add_history
trader_cdltakuri
trader_ht_phasor
sem_release
fbird_delete_user
pg_escape_literal
ibase_delete_user
stream_get_filters
fann_set_rprop_delta_zero
ibase_add_user
yaml_parse_url
readline_on_new_line
parse_str
reflector
parallel_future
grapheme_strlen
preg_last_error
stream_is_local
preg_replace_callback
readline_list_history
preg_split
parse_ini_string
class_implements
readline_completion_function
ibase_modify_user
swoole_async_dns_lookup
preg_filter
fann_create_train
trader_mult

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