array
debug_backtrace ( void)
debug_backtrace() generates a
PHP backtrace and returns this information as an associative
array. The possible returned elements are listed in
the following table:
表格 1. Possible returned elements from debug_backtrace()
|
|
|
|
|
The current
function name. See also
__FUNCTION__. |
|
|
The current line
number. See also
__LINE__. |
|
|
The current file
name. See also
__FILE__. |
|
|
The current class name. See also
__CLASS__ |
|
|
The current class
type. |
|
|
If inside a
function, this lists the functions arguments. If
inside a included file, this lists the included file
name(s). |
The following is a simple example.
範例 1. debug_backtrace()
example
// filename: a.php
?php
function a_test($str) {
print "\nHi: $str";
var_dump(debug_backtrace());
}
a_test('friend');
?
// filename: b.php
?php
include_once '/tmp/a.php';
?
/* Results when executing /tmp/b.php
Hi: friend
array(2) {
[0]=
array(4) {
["file"] = string(10) "/tmp/a.php"
["line"] = int(10)
["function"] = string(6) "a_test"
["args"]=
array(1) {
[0] = string(6) "friend"
}
}
[1]=
array(4) {
["file"] = string(10) "/tmp/b.php"
["line"] = int(2)
["args"] =
array(1) {
[0] = string(10) "/tmp/a.php"
}
["function"] = string(12) "include_once"
}
}
*/
|
|
See also trigger_error().