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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

docs/postgresql/16/spi-spi-getrelname doesn't exist. Closest matches:

openssl_get_curve_names
posix_getgrnam
socket_getpeername
openal_stream
swoole_set_process_name
ldap_control_paged_result_response
domprocessinginstruction
openssl_pkey_get_private
oci_set_module_name
posix_getpwnam
oci_field_name
dom_processinginstruction
ldap_first_reference
socket_export_stream
socket_import_stream
posix_setrlimit
posix_getrlimit
cubrid_get_class_name
ldap_count_references
mysql_field_name
openssl_spki_new
dbase_get_record_with_names
mcrypt_get_cipher_name
openssl_get_privatekey
pcntl_wifsignaled
cubrid_field_name
preg_replace
session_name
sqlsrv_send_stream_data
hash_update_stream

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