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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

outlook-https-github.com/php/doc-en/blob/master/reference/pcre/pattern.modifiers.xml doesn't exist. Closest matches:

http_get_last_response_headers
commonmark_render_xml
ldap_count_references
output_reset_rewrite_vars
hrtime_performancecounter
http_clear_last_response_headers
intlcodepointbreakiterator
openal_source_create
mongodb_driver_readpreference
commonmark_render_html
mongodb_driver_exception_encryptionexception
pspell_store_replacement
intldatepatterngenerator
mongodb_driver_writeconcernerror
runkit7_constant_redefine
imagecreatefromgif
domentityreference
libxml_use_internal_errors
imagecreatefromavif
solrserverexception
dom_entityreference
ldap_first_reference
openal_buffer_create
cubrid_close_prepare
swoole_async_readfile
commonmark_render_man
componere_abstract_definition
mailparse_determine_best_xfer_encoding
runkit7_constant_remove
commonmark_render_latex

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