How to get name of calling function method in PHP

Question

I am aware of function debug backtrace  but I am looking for some ready to use implementation of function like GetCallingMethodName    It would be perfect if it gave method s class too  if it is indeed a method

User · Answer

I needed something to just list the calling classes/methods (working on a Magento project).

While debug_backtrace provides tons of useful information, the amount of information it spewed out for the Magento installation was overwhelming (over 82,000 lines!) Since I was only concerned with the calling function and class, I worked this little solution up:

$callers = debug_backtrace();
foreach( $callers as $call ) {
    echo "<br>" . $call['class'] . '->' . $call['function'];
}

User · Answer

As of php 5 4 you can use           dbt debug backtrace DEBUG BACKTRACE IGNORE ARGS 2            caller   isset  dbt 1   function       dbt 1   function     null    This will not waste memory as it ignores arguments and returns only the last 2 backtrace stack entries  and will not generate notices as other answers here

User · Answer

For me debug backtrace was hitting my memory limit  and I wanted to use this in production to log and email errors as they happen   Instead I found this solution which works brilliantly      Make a new exception at the point you want to trace  and trace it   e   new Exception  var dump  e- gt getTraceAsString         Outputs the following   2  usr share php PHPUnit Framework TestCase php 626   SeriesHelperTest- gt setUp    3  usr share php PHPUnit Framework TestResult php 666   PHPUnit Framework TestCase- gt runBare    4  usr share php PHPUnit Framework TestCase php 576   PHPUnit Framework TestResult- gt run Object SeriesHelperTest    5  usr share php PHPUnit Framework TestSuite php 757   PHPUnit Framework TestCase- gt run Object PHPUnit Framework TestResult    6  usr share php PHPUnit Framework TestSuite php 733   PHPUnit Framework TestSuite- gt runTest Object SeriesHelperTest   Object PHPUnit Framework TestResult    7  usr share php PHPUnit TextUI TestRunner php 305   PHPUnit Framework TestSuite- gt run Object PHPUnit Framework TestResult   false  Array  Array  false   8  usr share php PHPUnit TextUI Command php 188   PHPUnit TextUI TestRunner- gt doRun Object PHPUnit Framework TestSuite   Array   9  usr share php PHPUnit TextUI Command php 129   PHPUnit TextUI Command- gt run Array  true   10  usr bin phpunit 53   PHPUnit TextUI Command  main    11  main

User · Answer

The debug backtrace   function is the only way to know this  if you re lazy it s one more reason you should code the GetCallingMethodName   yourself  Fight the laziness   D

User · Answer

My favourite way  in one line   debug backtrace   1   function      You can use it like this   echo  The calling function      debug backtrace   1   function      Note that this is only compatible with versions of PHP released within the last year  But it s a good idea to keep your PHP up to date anyway for security reasons

User · Answer

The simplest way is   echo debug backtrace   1   function

User · Answer

You can also use the info provided by a php exception  it s an elegant solution     function GetCallingMethodName         e   new Exception         trace    e- getTrace          position 0 would be the line that called this function so we ignore it      last call    trace 1       print r  last call      function firstCall  a   b       theCall  a   b      function theCall  a   b       GetCallingMethodName       firstCall  lucia    php       And you get this     voil       Array        file      home lufigueroa Desktop test php      line     12      function     theCall      args     Array                        0     lucia              1     php

User · Answer

Best answer of that question I ve seen is   list    caller    debug backtrace false     Short and clean

User · Answer

The simplest way of getting parent function name is    caller   next debug backtrace     function

User · Answer

I just wrote a version of this called  get caller   I hope it helps  Mine is pretty lazy  You can just run get caller   from a function  you don t have to specify it like this   get caller   FUNCTION       Here s the script in full with a quirky test case    lt  php     This function will return the name string of the function that called  function  To return the     caller of your function  either call get caller    or get caller   FUNCTION        function get caller  function   NULL   use stack   NULL        if   is array  use stack                 If a function stack has been provided  used that           stack    use stack        else              Otherwise create a fresh one           stack   debug backtrace            echo   nPrintout of Function Stack   n n           print r  stack           echo   n              if   function    NULL               We need  function to be a function name to retrieve its caller  If it is omitted  then            we need to first find what function called get caller    and substitute that as the            default  function  Remember that invoking get caller   recursively will add another            instance of it to the function stack  so tell get caller   to use the current stack           function   get caller   FUNCTION     stack              if   is string  function   amp  amp   function                      If we are given a function name as a string  go through the function stack and find            it s caller          for   i   0   i  lt  count  stack    i                   curr function    stack  i                  Make sure that a caller exists  a function being called within the main script                won t have a caller              if    curr function  function       function  amp  amp    i   1   lt  count  stack                      return  stack  i   1   function                                          At this stage  no caller has been found  bummer      return           TEST CASE  function woman          caller   get caller       No need for get caller   FUNCTION    here     if   caller                  echo  caller       called       FUNCTION          No surprises there  n         else           echo  no-one called      FUNCTION        n            function man            Call the woman      woman          Don t keep him waiting man        Try this to see what happens when there is no caller  function called from main script    woman       gt    man   calls woman    who calls get caller    get caller   doesn t know who called it yet  because the woman   was cautious and didn t tell it  so it recurses to find out  Then it returns who called woman    And the printout in source-code mode in a browser shows the function stack   Printout of Function Stack    Array        0    gt  Array                        file    gt   Users Aram Development Web php examples get caller php              line    gt  46              function    gt  get caller              args    gt  Array                                                      1    gt  Array                        file    gt   Users Aram Development Web php examples get caller php              line    gt  56              function    gt  woman              args    gt  Array                                                      2    gt  Array                        file    gt   Users Aram Development Web php examples get caller php              line    gt  60              function    gt  man              args    gt  Array                                                    man   called woman    No surprises there

[php] How to get name of calling function/method in PHP?

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