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PHP debug_print_backtrace() Function

< PHP Error Reference

Example

Print a PHP backtrace:

<?php
function a($txt) {
    b("Glenn");
}
function b($txt) {
  c("Cleveland");
}
function c($txt) {
  debug_print_backtrace();
}
a("Peter");
?>

The above code will output something like this:

#0 c(Cleveland) called at [C:\webfolder\test.php:6]
#1 b(Glenn) called at [C:\webfolder\test.php:3]
#2 a(Peter) called at [C:\webfolder\test.php:11]

Definition and Usage

The debug_print_backtrace() function prints a PHP backtrace.

This function displays data from the code that led up to the debug_print_backtrace() function.

Syntax

debug_print_backtrace(options,limit);

Parameter	Description
options	Optional. Specifies a bitmask for the following option: DEBUG_BACKTRACE_IGNORE_ARGS (Whether or not to omit the "args" index, and all the function/method arguments, to save memory)
limit	Optional. Limits the number of stack frames printed. By default (limit=0) it prints all stack frames

Technical Details

Return Value:	None
PHP Version:	5.0+
PHP Changelog:	PHP 5.4: The optional parameter limit was added PHP 5.3.6: The optional parameter options was added

< PHP Error Reference