<?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);
}
}
?>
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