24

trace

tokenid  |  track

trace.php
trace
SYNOPSIS

trace()

DESCRIPTION

trace collects the output of successive calls to dump or returns the collected outputs.

trace is called with 0, 1 or 2 arguments. With 1 or 2 arguments, trace collects the output of dump with the same arguments, i.e. a value and an optional label. With no arguments, trace returns the array of collected dumps.

NOTE: trace is intended for debugging. A programmer can decide where to display the collected dumps. See the final view standard.phtml in layouts:

<body>
<?php if (!empty($trace)): ?>
<div>
<?php foreach ($trace as $s): ?>
<?php echo $s; ?>
<?php endforeach; ?>
</div>
<?php endif; ?>
CODE
  1. require_once 'dump.php';
  2.  
  3. function trace() {
  4.     static $trace = null;
  5.  
  6.     if (func_num_args() == 0) {
  7.         return $trace;
  8.     }
  9.  
  10.     $var = func_get_arg(0);
  11.     $label = func_num_args() > 1 ? func_get_arg(1) : null;
  12.  
  13.     if (!$trace) {
  14.         $trace = array();
  15.     }
  16.  
  17.     $trace[]=dump($var, $label, false);
  18.  
  19.     return true;
  20. }

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