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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

using-https-www.php.net/types.null doesn't exist. Closest matches:

variant_set_type
imagetypes
stats_stat_percentile
fann_get_network_type
variant_get_type
stats_cdf_weibull
stats_rand_setall
stats_dens_weibull
cubrid_next_result
sqlsrv_next_result
settype
gettype
sqlite3result
snmp_set_enum_print
eventhttpconnection
zip_entry_open
stats_dens_pmf_negative_binomial
stats_cdf_negative_binomial
stats_cdf_exponential
xmlrpc_set_type
quickhashintset
stats_dens_exponential
rnp_supported_features
odbc_gettypeinfo
eventhttprequest
imagepalettetotruecolor
cubrid_connect_with_url
imap_setflag_full
mongodb_bson_type
http_get_last_response_headers

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