PHP debug_print_backtrace() Function
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
