bw_trace_obsafe_print_r() – Output buffering safe print_r()

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Description

Output buffering safe print_r()

Activate this plugin when you get the following message from oik-bwtrace Fatal error: print_r(): Cannot use output buffering in output buffering display handlers in plugins\oik-bwtrace\includes\bwtrace.inc on line 253 (or thereabouts ) The source of this function was @link http://grokbase.com/t/php/php-notes/1219akmjd7/note-107120-added-to-function-debug-print-backtrace Explanation of the print_r() function available at http://us.php.net/manual/en/function.print-r.php .

Usage

$string = bw_trace_obsafe_print_r( $var, $level, $visitedVars );

Parameters

$var

( mixed ) required – expression to be printed

$level

( integer ) optional – the nesting level – used for pretty formatting

$visitedVars

( array ) optional – to cater for recursive structures

Returns

string print_r() like output IF $return is true

Source

File name: oik-bwtrace/includes/bwtrace.php
Lines:

function bw_trace_obsafe_print_r( $var, $level=0, &$visitedVars = array()) {
  $spaces = "";
  $space = " ";
  $newline = "\n";
  for ($i = 1; $i <= 4; $i++) {
    $spaces .= $space;
  }
  $tabs = $spaces;
  for ($i = 1; $i <= $level; $i++) {
    $tabs .= $spaces;
  }
  
  if ( is_array( $var ) ) {
    $title = "Array";
  } elseif ( is_object( $var ) ) {
    $title = get_class( $var )." Object";
    $var = (array) $var;
  } else {
    $title = null;
  }
  if ( $title ) {
    $output = $title . $newline . $newline;
    foreach ($var as $key => $value) {
    
      if (is_array( $value ) || is_object( $value) ) {
        if ( is_array( $value ) && 0 == count( $value ) ) {
            $value = "Array";
        }  elseif ( is_object( $value ) && $value instanceof Closure ) {
           $value = 'Closure';
        } else {
          try {
            $md5_serialize = md5( serialize( $value ) );
          }
          catch  ( Exception $e ) {
            $md5_serialize = "Nested closure? $key";
          }
          if ( isset( $visitedVars[ $md5_serialize ] ) ) {
            $value = "*RECURSION* " . $visitedVars[ $md5_serialize] ;
          } else {
            $visitedVars[ $md5_serialize ] = "$key $level";
            $level++;
            $value = bw_trace_obsafe_print_r( $value, $level, $visitedVars);
            $level--;
          }
        }    
      } else {
        $value = '('.gettype($value).') '.(is_string($value) ? '"' : '').$value.(is_string($value) ? '"' : '');
      }
      $key = str_replace( chr(0), " ", $key );
      $output .= $tabs . "[" . $key . "] => " . $value . $newline;
    }
  } else {
    $output = $var;
  }
  return $output;
}
 

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