Test Server - Forum Code Changes for PHP 5.3.10 to PHP 7

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LEARN ABOUT PHP

debug_print_backtrace

DEBUG_PRINT_BACKTRACE(3)						 1						  DEBUG_PRINT_BACKTRACE(3)

debug_print_backtrace - Prints a backtrace

SYNOPSIS

       void debug_print_backtrace ([int  $options], [int  $limit])

DESCRIPTION

       debug_print_backtrace(3) prints a PHP backtrace. It prints the function calls, included/required files and eval(3)ed stuff.

PARAMETERS

	      o $options
		- As of 5.3.6, this parameter is a bitmask for the following options:

	      debug_print_backtrace(3) options

	      +----------------------------+---------------------------------------------------+
	      |DEBUG_BACKTRACE_IGNORE_ARGS |						       |
	      | 			   |						       |
	      | 			   |  Whether  or  not	to  omit the "args" index, and |
	      | 			   | thus all the function/method arguments,  to  save |
	      | 			   | memory.					       |
	      | 			   |						       |
	      +----------------------------+---------------------------------------------------+
	      o $limit
		-  As of 5.4.0, this parameter can be used to limit the number of stack frames printed. By default ($limit= 0) it prints all stack
		frames.

RETURN VALUES

	No value is returned.

CHANGELOG

       +--------+-----------------------------------------+
       |Version |					  |
       |	|					  |
       |	|		Description		  |
       |	|					  |
       +--------+-----------------------------------------+
       | 5.4.0	|					  |
       |	|					  |
       |	|   Added the optional parameter $limit.  |
       |	|					  |
       | 5.3.6	|					  |
       |	|					  |
       |	|  Added the optional parameter $options. |
       |	|					  |
       +--------+-----------------------------------------+
EXAMPLES

       Example #1

	      debug_print_backtrace(3) example

	      <?php
	      // include.php file

	      function a() {
		  b();
	      }

	      function b() {
		  c();
	      }

	      function c(){
		  debug_print_backtrace();
	      }

	      a();

	      ?>

	      <?php
	      // test.php file
	      // this is the file you should run

	      include 'include.php';
	      ?>

	      The above example will output something similar to:

	      #0  c() called at [/tmp/include.php:10]
	      #1  b() called at [/tmp/include.php:6]
	      #2  a() called at [/tmp/include.php:17]
	      #3  include(/tmp/include.php) called at [/tmp/test.php:3]

SEE ALSO

       debug_backtrace(3).

PHP Documentation Group 												  DEBUG_PRINT_BACKTRACE(3)

Shell Programming and Scripting