The debug_print_backtrace() function in PHP displays a backtrace. It does not return a value.
Syntax
debug_print_backtrace(options, limit)
Parameters
options − A bitmask for the below given options
- DEBUG_BACKTRACE_IGNORE_ARGS: Whether or not to omit the "args" index, and all the function/method arguments, to save memory.
limit − Limit the number of stack frames printed.
Return
The debug_print_backtrace() function does not return a value.
Example
The following is an example −
<?php
function Test1() {
Test2();
}
function Test2() {
Test3();
}
function Test3() {
Test4();
}
function Test4() {
debug_print_backtrace();
}
Test1();
?>Output
Hi: helloarray(1) {
[0]=>
array(4) {
["file"]=>
string(30) "/home/cg/root/4127336/main.php"
["line"]=>
int(7)
["function"]=>
string(7) "display"
["args"]=>
array(1) {
[0]=>
string(5)
"hello"
}
}
}