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File: Debug.php

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  Classes of Christian  >  Debug_class  >  Debug.php  >  Download  
File: Debug.php
Role: Class source
Content type: text/plain
Description: Debug class
Class: Debug_class
Output values of variables
Author: By
Last change:
Date: 6 years ago
Size: 4,749 bytes
 

Contents

Class file image Download
<?php
/**
 * @author Christian Reinecke <reinecke@bajoodoo.com>
 * @version 2.0
 * @since 2007-05-16
 * @license no
 */
abstract class Debug
{
   
/**
     * @desc call with as much parameters as you like; script will exit after output
     * @param mixed [optional]
     * @return null
     */
   
public static function stop()
    {
       
$glue = PHP_EOL . PHP_EOL;
       
$output = array();
        for (
$i = 0, $k = 1, $x = func_num_args(); $i < $x; ++$i, ++$k) {
           
$arg = func_get_arg($i);
           
$output[] = "DEBUG ARG $k:";
           
$output[] = self::_getVariable($arg);
        }
       
$output[] = self::_getBacktrace($glue, 1);
       
$output[] = self::_getMemoryUsage();
       
$output[] = self::_getTimestamp();
       
$output[] = "DEBUG STOP";
       
$output = implode($glue, $output);
       
self::_flush($output);
        exit;
    }

   
/**
     * @desc call with as much parameters as you like
     * @param mixed [optional]
     * @return null
     */
   
public static function write()
    {
       
$glue = PHP_EOL . PHP_EOL;
       
$output = array();
        for (
$i = 0, $k = 1, $x = func_num_args(); $i < $x; ++$i, ++$k) {
           
$arg = func_get_arg($i);
           
$output[] = "DEBUG ARG $k:";
           
$output[] = self::_getVariable($arg);
        }
       
$output[] = self::_getBacktrace($glue, 1);
       
$output[] = self::_getMemoryUsage();
       
$output[] = self::_getTimestamp();
       
$output = implode($glue, $output);
       
self::_flush($output);
    }

   
/**
     * @desc call with as much parameters as you like, arguments will be passed to error_log()
     * @see http://de.php.net/manual/en/function.error-log.php
     * @param mixed [optional]
     * @return bool error_log
     */
   
public static function log()
    {
       
$glue = "; ";
       
$output = array();
        for (
$i = 0, $k = 1, $x = func_num_args(); $i < $x; ++$i, ++$k) {
           
$arg = func_get_arg($i);
           
$output[] = "DEBUG ARG $k:";
           
$output[] = self::_getVariable($arg);
        }
       
$output[] = self::_getBacktrace($glue, 1);
       
$output[] = self::_getMemoryUsage();
       
$output[] = self::_getTimestamp();
       
$output = implode($glue, $output);
        return
error_log($output);
    }

    protected static function
_getTimestamp()
    {
        list (
$usec, $sec) = explode(" ", microtime());
       
$usec = substr($usec, 2);
        return
"DEBUG TIMESTAMP $sec.$usec";
    }

    protected static function
_getMemoryUsage()
    {
       
$memoryEmalloc = number_format(memory_get_usage(false));
       
$memoryReal = number_format(memory_get_usage(true));
        return
"DEBUG MEMORY $memoryEmalloc of $memoryReal";
    }

    protected static function
_getVariable($variable)
    {
       
ob_start();
       
var_dump($variable);
        return
ob_get_clean();
    }

    protected static function
_getBacktrace($glue, $slice)
    {
        foreach (
debug_backtrace() as $i => $trace) {
           
$file = isset($trace["file"]) ? $trace["file"] : "null";
           
$line = isset($trace["line"]) ? $trace["line"] : "null";
           
$class = isset($trace["class"]) ? $trace["class"] : null;
           
$function = isset($trace["function"]) ? $trace["function"] : "null";
           
$type = isset($trace["type"]) ? $trace["type"] : null;
           
$args = isset($trace["args"]) ? implode(", ", array_map(array(__CLASS__, "_getBeautifiedArgument"), $trace["args"])) : null;
           
$output[] = sprintf("[%2s] %s:%s\n %s%s%s(%s)",
                       
$i, $file, $line, $class, $type, $function, $args);
        }
       
$output = array_slice($output, $slice);
       
array_unshift($output, "DEBUG BACKTRACE");
        return
implode($glue, $output);
    }

    protected static function
_flush($string)
    {
        echo
"<pre>", $string, "</pre>";
       
flush();
    }

    protected static function
_getBeautifiedArgument($arg)
    {
        if (
is_int($arg) || is_double($arg)) {
            return
$arg;
        }
        if (
is_string($arg)) {
            if (
mb_strlen($arg) > 15) {
                return
'"' . mb_substr($arg, 0, 15) . '"[..]';
            }
            return
'"' . $arg . '"';
        }
        if (
is_bool($arg)) {
            return
$arg ? "true" : "false";
        }
        if (
is_array($arg)) {
            return
"array(" . count($arg) . ")";
        }
        if (
is_object($arg)) {
            return
get_class($arg);
        }
        return
gettype($arg);
    }
}
?>