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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

iis-set-dir-security doesn't exist. Closest matches:

directory
snmp_set_enum_print
ps_set_border_style
geoip_setup_custom_directory
ssh2_disconnect
ps_setlinewidth
imageistruecolor
ibase_free_query
sodium_crypto_kx_secretkey
ibase_modify_user
uopz_set_property
get_resource_type
pcntl_setpriority
mysql_set_charset
directoryiterator
sodium_crypto_box_secretkey
ibase_execute
imagesetstyle
ps_setlinecap
is_executable
socket_select
str_decrement
posix_seteuid
ini_parse_quantity
svn_fs_dir_entries
sodium_crypto_secretbox
fdf_set_on_import_javascript
sodium_crypto_sign_secretkey
is_string
mb_strcut

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