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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

ini_set(display_errors, 1); doesn't exist. Closest matches:

eio_get_last_error
date_get_last_errors
pcntl_get_last_error
socket_last_error
libxml_get_last_error
libxml_get_errors
libxml_use_internal_errors
intl_get_error_message
fann_set_error_log
socket_clear_error
intl_get_error_code
intl_error_name
imap_last_error
imap_errors
posix_get_last_error
fann_get_layer_array
fann_set_sarprop_step_error_shift
fann_reset_errno
mqseries_strerror
swoole_last_error
db2_stmt_errormsg
fann_reset_errstr
pg_last_error
iconv_strrpos
sqlsrv_errors
pg_set_error_verbosity
db2_field_display_size
gnupg_seterrormode
readline_redisplay
pcntl_strerror

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