debug_backtrace

FunctionParams and return types changed in PHP 8.0
PHP 5
PHP 7
PHP 8.0
Improved
PHP 8.1
PHP 8.2-8.3
PHP 8.4
PHP 8.5
PHP 8.6

debug_backtrace Function synopsis

debug_backtrace(int $options = DEBUG_BACKTRACE_PROVIDE_OBJECT, int $limit = 0): array

Parameters

$options

OptionalTypeintDefault valueDEBUG_BACKTRACE_PROVIDE_OBJECT

$options accepts one or a bitmask of the following constant values:

$limit

OptionalTypeintDefault value0

Return value

Typearray

Changes to the debug_backtrace Function

PHP 8.0

  • Return type added: array
  • Parameter type added for parameter #1 ($options): int
  • Parameter default value added for position #1 ($options): DEBUG_BACKTRACE_PROVIDE_OBJECT
  • Parameter type added for parameter #2 ($limit): int
  • Parameter default value added for position #2 ($limit): 0
- debug_backtrace($options, $limit)
+ debug_backtrace(int $options = DEBUG_BACKTRACE_PROVIDE_OBJECT, int $limit = 0): array

PHP 5.4

  • Optional parameter added - #2: $limit
- debug_backtrace($options)
+ debug_backtrace($options, $limit)

debug_backtrace Function Availability

PHP VersionAvailability
PHP 8.6Upcoming Release Yes
PHP 8.5Supported (Latest) Yes
PHP 8.4Supported Yes
PHP 8.3Security-Fixes Only Yes
PHP 8.2Security-Fixes Only Yes
PHP 8.1Unsupported Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported Yes
PHP 7.0Unsupported Yes
PHP 5.6Unsupported Yes
PHP 5.5Unsupported Yes
PHP 5.4Unsupported Yes
PHP 5.3Unsupported Yes