PHP implementation of the debug log log Operation class instance _php skills

The example in this article describes the debug log action class for PHP implementation. Share to everyone for your reference, specific as follows:

<?php
class Tool {public
  static function log ($info) {
    $time = date (' m-d h:i:s ');
    $backtrace = Debug_backtrace ();
    $backtrace _line = Array_shift ($backtrace); Which row calls the log method
    $backtrace _call = Array_shift ($backtrace);//Who calls the log
    method $file = substr ($backtrace _line[' file ') , strlen ($_server[' document_root '));
    $line = $backtrace _line[' line '];
    $class = isset ($backtrace _call[' class ')? $backtrace _call[' class ']: ';
    $type = isset ($backtrace _call[' type ')? $backtrace _call[' type ']: ';
    $func = $backtrace _call[' function '];
    File_put_contents ($_server[' document_root '). ' /debug.log ', "$time $file: $line $class $type$func: $info \ n", file_append)
  ;
}
Class Action {public
  function A () {
    $this->b ();
  }
  Public Function B () {
    $this->c ();
  }
  Public Function C () {
    tool::log (' sdfsdf ');
  }
$action = new Action ();
$action->a ();

Here's another function to add:

function Loginfo ($format) {
  $args = Func_get_args ();
  Array_shift ($args);
  $d = Debug_backtrace (debug_backtrace_provide_object, 1) [0];
  $info = vsprintf ($format, $args);
  $data = sprintf ("%s%s,%d:%s\n", Date ("Ymd he"), $d ["File"], $d ["line"], $info);
  File_put_contents (__dir__.) /log.txt ", $data, File_append);
}

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I hope this article will help you with the PHP program design.