What is the best practice to run a php script from a php script?

Question

I would use the following code:

$SERVER_PATH = dirname(__FILE__);
shell_exec($PHP_LOCATION.' '.$SERVER_PATH."/script.php?k1=v1&k2=v2 > /dev/null 2>/dev/null &");

Where:

• $PHP_LOCATION must contain the path to PHP,

• $SERVER_PATH - current working directory (fortunately, the script to run is in the same directory),

• > /dev/null 2>/dev/null &added to make this call asynchronous (taken from a question with asynchronous shell in PHP )

This code has two problems:

• As far as I remember, it ?k1=v1&k2=v2will work only for a web call, so in this particular case the parameters will not be passed to the script.

• I really don't know how to initialize a variable $PHP_LOCATIONin order to be flexible and work on most hosts.

I did some research on both issues:

1 -- 'parameters_string', script , . ?

2, PHP_BINARY, PHP 5.4+ ( 5.3). , PHP , script. , ( PHP 5.3) ?

EDIT 0

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Answer 1

, Linux, :

function getBinaryRunner($binary)
{
    return trim(shell_exec('which '.$binary));
}

, :

function checkIfCommandExists($command)
{
    $result = shell_exec('which '.$command);
    return !empty($result);
}

:

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• -. :

  //Yes, you will use wget or, better, curl to make web-request from CLI
  shell_exec('wget http://your.web-server.domain/script.php?foo=bar');
  

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• $_SERVER script , CLI:

  shell_exec('/usr/bin/php /path/to/script.php foo bar');
  
  //inside your script.php you will see:
  //$_SERVER['argv'][0] is "script.php"
  //$_SERVER['argv'][1] is "foo"
  //$_SERVER['argv'][2] is "bar"
  

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