Home>Article>Backend Development> How to use PHP error handling function debug_backtrace()?
php debug_backtrace() functionis used to generate a PHP backtrace, that is, to generate a PHP backtrace (backtrace).
Syntax:
debug_backtrace(provide_object)
Parameters:
provide_object: Specify whether to fill the object index. The type of provide_object is boolean.
Return value:
The debug_backtrace() function returns an associative array. The following list is the possible returned elements:
Name | Type | Description |
string | The name of the current function. | |
integer | Current line number. | |
string | Current file name. | |
string | Current class name | |
object | Current object name. | |
string | Specifies the current call type.is used for method calls. (returns "->")is used for static method calls. (Return "::")is used for function calls. (If nothing is returned, it is empty) | |
array | If inside the function. (This lists the function parameters.)If in an included file. (This lists the included file names.) |
"; var_dump(debug_backtrace()); } demo('php');Output:
正在学习:php array (size=1) 0 => array (size=4) 'file' => string 'D:\wamp\www\test\demo.php' (length=25) 'line' => int 7 'function' => string 'demo' (length=4) 'args' => array (size=1) 0 => &string 'php' (length=3)Related recommendations: "
PHP Tutorial"
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