Need Help with awk Post: 302908520

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LEARN ABOUT PHP

debug_backtrace

DEBUG_BACKTRACE(3)							 1							DEBUG_BACKTRACE(3)

debug_backtrace - Generates a backtrace

SYNOPSIS

       array debug_backtrace ([int  $options = DEBUG_BACKTRACE_PROVIDE_OBJECT], [int  $limit])

DESCRIPTION

       debug_backtrace(3) generates a PHP backtrace.

PARAMETERS

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

	      debug_backtrace(3) options

	      +-------------------------------+---------------------------------------------------+
	      |DEBUG_BACKTRACE_PROVIDE_OBJECT | 						  |
	      | 			      | 						  |
	      | 			      |   Whether or not to populate the "object" index.  |
	      | 			      | 						  |
	      | DEBUG_BACKTRACE_IGNORE_ARGS   | 						  |
	      | 			      | 						  |
	      | 			      |  Whether  or  not  to  omit the "args" index, and |
	      | 			      | thus all the function/method arguments,  to  save |
	      | 			      | memory. 					  |
	      | 			      | 						  |
	      +-------------------------------+---------------------------------------------------+
	       Before  5.3.6,  the only values recognized are TRUE or FALSE, which are the same as setting or not setting the DEBUG_BACKTRACE_PRO-
	      VIDE_OBJECT option respectively.

	      o $limit
		- As of 5.4.0, this parameter can be used to limit the number of stack frames returned. By default  ($limit=  0)  it  returns  all
		stack frames.

RETURN VALUES

	Returns an array of associative arrays. The possible returned elements are as follows:

       Possible returned elements from debug_backtrace(3)

       +---------+--------------------------------------+---+
       |  Name	 |					|   |
       |	 |					|   |
       |	 |		   Type 		|   |
       |	 |					|   |
       |	 |	       Description		|   |
       |	 |					|   |
       +---------+--------------------------------------+---+
       |function |					|   |
       |	 |					|   |
       |	 |					|   |
       |	 |		  string		|   |
       |	 |					|   |
       |	 |  The current function name. See also |   |
       |	 | __FUNCTION__.			|   |
       |	 |					|   |
       |  line	 |					|   |
       |	 |					|   |
       |	 |					|   |
       |	 |		 integer		|   |
       |	 |					|   |
       |	 |  The current line number.  See  also |   |
       |	 | __LINE__.				|   |
       |	 |					|   |
       |  file	 |					|   |
       |	 |					|   |
       |	 |					|   |
       |	 |		  string		|   |
       |	 |					|   |
       |	 |  The  current  file	name.  See also |   |
       |	 | __FILE__.				|   |
       |	 |					|   |
       | class	 |					|   |
       |	 |					|   |
       |	 |					|   |
       |	 |		  string		|   |
       |	 |					|   |
       |	 |  The current class  name.  See  also |   |
       |	 | __CLASS__				|   |
       |	 |					|   |
       | object  |					|   |
       |	 |					|   |
       |	 |					|   |
       |	 |		  object		|   |
       |	 |					|   |
       |	 |	    The current object. 	|   |
       |	 |					|   |
       |  type	 |					|   |
       |	 |					|   |
       |	 |					|   |
       |	 |		  string		|   |
       |	 |					|   |
       |	 |  The  current call type. If a method |   |
       |	 | call, "->" is returned. If a  static |   |
       |	 | method  call, "::" is returned. If a |   |
       |	 | function call, nothing is returned.	|   |
       |	 |					|   |
       |  args	 |					|   |
       |	 |					|   |
       |	 |					|   |
       |	 |		  array 		|   |
       |	 |					|   |
       |	 |  If inside a  function,  this  lists |   |
       |	 | the	functions  arguments. If inside |   |
       |	 | an included	file,  this  lists  the |   |
       |	 | included file name(s).		|   |
       |	 |					|   |
       +---------+--------------------------------------+---+
CHANGELOG

       +--------+---------------------------------------------------+
       |Version |						    |
       |	|						    |
       |	|		     Description		    |
       |	|						    |
       +--------+---------------------------------------------------+
       | 5.4.0	|						    |
       |	|						    |
       |	|	 Added the optional parameter $limit.	    |
       |	|						    |
       | 5.3.6	|						    |
       |	|						    |
       |	|  The	 parameter   $provide_object   changed	 to |
       |	| $options  and   additional   option	DEBUG_BACK- |
       |	| TRACE_IGNORE_ARGS is added.			    |
       |	|						    |
       | 5.2.5	|						    |
       |	|						    |
       |	|   Added the optional parameter $provide_object.   |
       |	|						    |
       | 5.1.1	|						    |
       |	|						    |
       |	|  Added  the  current	object as a possible return |
       |	| element.					    |
       |	|						    |
       +--------+---------------------------------------------------+
EXAMPLES

       Example #1

	      debug_backtrace(3) example

	      <?php
	      // filename: /tmp/a.php

	      function a_test($str)
	      {
		  echo "
Hi: $str";
		  var_dump(debug_backtrace());
	      }

	      a_test('friend');
	      ?>

	      <?php
	      // filename: /tmp/b.php
	      include_once '/tmp/a.php';
	      ?>

	       Results similar to the following 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(3), debug_print_backtrace(3).

PHP Documentation Group 													DEBUG_BACKTRACE(3)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Awk problem: How to express the single quote(') by using awk print function

Discussion started by: patrick87

2. Shell Programming and Scripting

scripting/awk help : awk sum output is not comming in regular format. Pls advise.

Discussion started by: rveri

3. Shell Programming and Scripting

awk: assign variable with -v didn't work in awk filter

Discussion started by: honglus

4. Shell Programming and Scripting

Problem with awk awk: program limit exceeded: sprintf buffer size=1020

Discussion started by: fate