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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-thephp.foundation/donate doesn't exist. Closest matches:

imagesetinterpolation
eventhttpconnection
stats_standard_deviation
imagefontwidth
stats_absolute_deviation
outofboundsexception
solrcollapsefunction
lengthexception
geoip_country_code_by_name
get_html_translation_table
imagegetinterpolation
geoip_country_code3_by_name
stats_stat_correlation
intldateformatter
fann_set_train_stop_function
ps_hyphenate
ssh2_methods_negotiated
intlexception
snmpexception
reflectionuniontype
solrclientexception
requestparsebodyexception
getprotobyname
ps_end_pattern
ftp_set_option
oauthexception
stompexception
swoole_http_response
intlcodepointbreakiterator
ssdeep_fuzzy_hash_filename

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