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Introduction
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Predefined Variables
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Security
Introduction
General considerations
Installed as CGI binary
Installed as an Apache module
Session Security
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HTTP authentication with PHP
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DTrace Dynamic Tracing
Function Reference
Affecting PHP's Behaviour
Audio Formats Manipulation
Authentication Services
Command Line Specific Extensions
Compression and Archive Extensions
Cryptography Extensions
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Date and Time Related Extensions
File System Related Extensions
Human Language and Character Encoding Support
Image Processing and Generation
Mail Related Extensions
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Non-Text MIME Output
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PHP Function List
is_null/refs.basic.vartype.php
doesn't exist. Closest matches:
is_numeric
is_resource
is_readable
get_resource_type
intlbreakiterator
session_save_path
radius_request_authenticator
is_null
fbird_rollback_ret
session_start
session_abort
stream_isatty
eio_fallocate
mysql_real_escape_string
reflectionnamedtype
solrgenericresponse
reflectiontype
substr_compare
session_cache_expire
win32_create_service
imagecolorexactalpha
gnupg_listsignatures
is_finite
is_scalar
ffi_ctype
imap_num_recent
intlgregoriancalendar
zip_entry_compressionmethod
svn_revert
ps_restore
