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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

execing-https-www.php.net/manual/tr/opcache.preloading.php doesn't exist. Closest matches:

mb_internal_encoding
commonmark_node_heading
imagealphablending
solrmissingmandatoryparameterexception
eventhttpconnection
oci_set_db_operation
zip_entry_compressionmethod
cubrid_set_autocommit
cubrid_get_autocommit
stats_stat_correlation
dateinvalidoperationexception
xmlrpc_server_add_introspection_data
http_get_last_response_headers
zip_entry_compressedsize
iconv_set_encoding
phpdbg_start_oplog
iconv_get_encoding
runkit7_constant_redefine
unhandledmatcherror
expect_popen
libxml_use_internal_errors
zookeeperoperationtimeoutexception
wincache_refresh_if_changed
eio_set_max_parallel
zlib_get_coding_type
session_cache_expire
win32_start_service_ctrl_dispatcher
simplexml_load_string
zip_entry_open
zip_entry_read

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