Introduction to php bug debugging assistant debug_print_backtrace()

This article mainly introduces the introduction of the PHP bug debugging assistant debug_print_backtrace(), which has a certain reference value. Now I share it with you. Friends in need can refer to it

debug_print_backtrace() is a very A low-key function, few people have paid attention to it. But when I call another object on one object and then call other objects and a function in the file and make an error, it may be laughing.

If we Want to know who called a certain method? debug_print_backtrace can solve it
debug_print_backtrace() can print out the calling process of a page, and it is clear where it comes from.
But this is a proprietary function of PHP5, okay There is already an implementation in pear,

Case 1

<?php 
class a{ 
function say($msg) { 
echo "msg:".$msg; 
echo "<pre class="brush:php;toolbar:false">";debug_print_backtrace(); 
} 
} 

class b { 
function say($msg) { 
$a = new a(); 
$a->say($msg); 
} 
} 

class c { 
function __construct($msg) { 
$b = new b(); 
$b->say($msg); 
} 
} 

$c = new c("test");

Case 2

<?php

function one($str1, $str2)
{
    two("Glenn", "Quagmire");
}

function two($str1, $str2)
{
    three("Cleveland", "Brown");
}

function three($str1, $str2)
{
    echo &#39;<pre class="brush:php;toolbar:false">&#39;;
    debug_backtrace();
}
echo one(&#39;a&#39;,&#39;b&#39;);?>

The above is the entire content of this article. I hope it will be helpful to everyone’s study. For more related content, please pay attention to the PHP Chinese website!

Related recommendations:

php http_build_query stream_context_create post request

The above is the detailed content of Introduction to php bug debugging assistant debug_print_backtrace(). For more information, please follow other related articles on the PHP Chinese website!