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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

opcache.max_wasted_percentage doesn't exist. Closest matches:

opcache_reset
apache_child_terminate
openal_listener_get
pg_send_prepare
openal_listener_set
ibase_wait_event
openal_source_get
apache_setenv
openal_context_current
opcache_invalidate
openal_source_pause
grapheme_strlen
opcache_is_script_cached
ps_end_page
opcache_compile_file
session_cache_expire
hrtime_performancecounter
oci_set_prefetch
domcharacterdata
cli_set_process_title
stats_stat_percentile
headers_sent
socket_last_error
dom_characterdata
ocifetchstatement
uopz_set_property
openal_source_set
apache_request_headers
class_parents
ibase_prepare

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