Get absolute path of initially run script

Question

I have searched high and low and get a lot of different solutions and variables containing info to get the absolute path   But they seem to work under some conditions and not under others   Is there one silver bullet way to get the absolute path of the executed script in PHP   For me  the script will run from the command line  but  a solution should function just as well if run within Apache etc   Clarification   The initially executed script  not necessarily the file where the solution is coded

User · Answer

DIR     From the manual    The directory of the file  If used inside an include  the directory of the included file is returned  This is equivalent to dirname   FILE     This directory name does not have a trailing slash unless it is the root directory       FILE   always contains an absolute path with symlinks resolved whereas in older versions  than 4 0 2  it contained relative path under some circumstances    Note    DIR   was added in PHP 5 3 0

User · Answer

realpath   SERVER  SCRIPT FILENAME      For script run under web server   SERVER  SCRIPT FILENAME   will contain the full path to the initially called script  so probably your index php  realpath   is not required in this case    For the script run from console   SERVER  SCRIPT FILENAME   will contain relative path to your initially called script from your current working dir  So unless you changed working directory inside your script it will resolve to the absolute path

User · Answer

realpath dirname   FILE         it gives you current script the script inside which you placed this code  directory without trailing slash  this is important if you want to include other files with the result

User · Answer

dirname   FILE       will give the absolute route  of the current file from which you are demanding the route  the route of your server directory   example files    www http html index php   if you place this code inside your index php it will return    lt  php  echo dirname   FILE        this will return  www http html   www http html class myclass php   if you place this code inside your myclass php it will return    lt  php  echo dirname   FILE        this will return  www http html class

User · Answer

Just use below    echo   DIR

User · Answer

A simple way to have the absolute path of the initially executed script  in that script and any other script included with include  require  require once is by using a constant and storing there the current script path at beginning of the main script   define   SCRIPT ROOT     FILE          The solution above is suitable when there is a single  main  script that includes every other needed script  as in most web applications   If that s not the case and there may be several  intital scripts  then to avoid redefinitions and to have the correct path stored inside the constant each script may begin with   if    defined   SCRIPT ROOT            define   SCRIPT ROOT     FILE            A note about the  currently  accepted answer   the answer states that the initially executed script path is the first element of the array returned by get included files     This is a clever and simple solution and -at the time of writing-  we re almost at PHP 7 4 0  it does work   However by looking at the documentation there is no mention that the initially executed script is the first item of the array returned by get included files     We only read     The script originally called is considered an  included file   so it will be listed together with the files referenced by include and family    At the time of writing the  script originally called  is the first one in the array but -technically- there is no guarantee that this won t change in the future     A note about realpath      FILE    and   DIR     Others have suggested in their answers the use of   FILE      DIR    dirname   FILE     realpath   DIR        dirname   FILE    is equal to   DIR    introduced in PHP 5 3 0   so just use   DIR     Both   FILE   and   DIR   are always absolute paths so realpath   is unnecessary

User · Answer

If you want to get current working directory use getcwd    http   php net manual en function getcwd php    FILE   will return path with filename for example on XAMPP C  xampp htdocs index php instead of C  xampp htdocs

User · Answer

FILE   constant will give you absolute path to current file   Update   The question was changed to ask how to retrieve the initially executed script instead of the currently running script   The only      reliable way to do that is to use the debug backtrace function    stack   debug backtrace     firstFrame    stack count  stack  - 1    initialFile    firstFrame  file

User · Answer

echo realpath dirname   FILE        If you place this in an included file  it prints the path to this include  To get the path of the parent script  replace   FILE   with   SERVER  PHP SELF    But be aware that PHP SELF is a security risk

User · Answer

try this on your script  echo getcwd       n

User · Answer

The correct solution is to use the get included files function   list  scriptPath    get included files      This will give you the absolute path of the initial script even if    This function is placed inside an included file The current working directory is different from initial script s directory The script is executed with the CLI  as a relative path     Here are two test scripts  the main script and an included file     C  Users Redacted Desktop main php include   DIR     DIRECTORY SEPARATOR    include php   echoScriptPath       C  Users Redacted Desktop include php function echoScriptPath         list  scriptPath    get included files        echo  The script being executed is      scriptPath      And the result  notice the current directory   C   gt php C  Users Redacted Desktop main php The script being executed is C  Users Redacted Desktop main php

User · Answer

Answer has been moved here  - https   stackoverflow com a 26944636 2377343

User · Answer

Here s a useful PHP function I wrote for this precisely  As the original question clarifies  it returns the path from which the initial script was executed - not the file we are currently in          Get the file path dir from which a script function was initially executed         param bool  include filename include exclude filename in the return string     return string      function get function origin path  include filename   true         bt   debug backtrace        array shift  bt       if   array key exists 0   bt   amp  amp  array key exists  file    bt 0                file path    bt 0   file            if    include filename     false                  file path   str replace basename  file path        file path                   else            file path   null            return  file path

User · Answer

If you re looking for the absolute path relative to the server root  I ve found that this works well     SERVER  DOCUMENT ROOT     dirname   SERVER  SCRIPT NAME

User · Answer

This is what I use and it works in Linux environments  I don t think this would work on a Windows machine       define canonicalized absolute pathname for the script if substr   SERVER  SCRIPT NAME   0 1     DIRECTORY SEPARATOR          does the script name start with the directory separator        if so  the path is defined from root  may have symbolic references so still use realpath        script   realpath   SERVER  SCRIPT NAME       else         otherwise prefix script name with the current working directory       and use realpath   to resolve symbolic references      script   realpath getcwd     DIRECTORY SEPARATOR     SERVER  SCRIPT NAME

[php] Get absolute path of initially run script

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