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PHP 8.4.1 Released!
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
debug_string_backtrace
doesn't exist. Closest matches:
debug_print_backtrace
debug_backtrace
xdiff_string_bpatch
xdiff_string_patch
eio_set_min_parallel
gnupg_listsignatures
xdiff_string_rabdiff
xdiff_string_diff_binary
recode_string
xdiff_string_patch_binary
pg_untrace
fann_set_learning_rate
stringable
mb_stristr
ps_string_geometry
xdiff_string_bdiff
substr_replace
xdiff_string_bdiff_size
xdiff_string_merge3
yaf_plugin_abstract
fdf_save_string
fdf_open_string
str_replace
odbc_connection_string_quote
header_register_callback
stream_socket_accept
php_strip_whitespace
ldap_set_rebind_proc
mb_eregi_replace
dio_truncate
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