| 1 | <?php
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| 2 | /**
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| 3 | * TVarDumper class file
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| 4 | *
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| 5 | * @author Qiang Xue <qiang.xue@gmail.com>
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| 6 | * @link http://www.pradosoft.com/
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| 7 | * @copyright Copyright © 2005-2008 PradoSoft
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| 8 | * @license http://www.pradosoft.com/license/
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| 9 | * @version $Id$
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| 10 | * @package System.Util
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| 11 | */
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| 12 |
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| 13 | /**
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| 14 | * TVarDumper class.
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| 15 | *
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| 16 | * TVarDumper is intended to replace the buggy PHP function var_dump and print_r.
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| 17 | * It can correctly identify the recursively referenced objects in a complex
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| 18 | * object structure. It also has a recursive depth control to avoid indefinite
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| 19 | * recursive display of some peculiar variables.
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| 20 | *
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| 21 | * TVarDumper can be used as follows,
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| 22 | * <code>
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| 23 | * echo TVarDumper::dump($var);
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| 24 | * </code>
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| 25 | *
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| 26 | * @author Qiang Xue <qiang.xue@gmail.com>
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| 27 | * @version $Id$
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| 28 | * @package System.Util
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| 29 | * @since 3.0
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| 30 | */
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| 31 | class TVarDumper
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| 32 | {
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| 33 | private static $_objects;
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| 34 | private static $_output;
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| 35 | private static $_depth;
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| 36 |
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| 37 | /**
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| 38 | * Converts a variable into a string representation.
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| 39 | * This method achieves the similar functionality as var_dump and print_r
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| 40 | * but is more robust when handling complex objects such as PRADO controls.
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| 41 | * @param mixed variable to be dumped
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| 42 | * @param integer maximum depth that the dumper should go into the variable. Defaults to 10.
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| 43 | * @return string the string representation of the variable
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| 44 | */
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| 45 | public static function dump($var,$depth=10,$highlight=false)
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| 46 | {
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| 47 | self::$_output='';
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| 48 | self::$_objects=array();
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| 49 | self::$_depth=$depth;
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| 50 | self::dumpInternal($var,0);
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| 51 | if ($highlight)
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| 52 | {
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| 53 | $result=highlight_string("<?php\n".self::$_output,true);
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| 54 | return preg_replace('/<\\?php<br \\/>/','',$result,1);
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| 55 | }
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| 56 | else
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| 57 | return self::$_output;
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| 58 | }
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| 59 |
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| 60 | private static function dumpInternal($var,$level)
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| 61 | {
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| 62 | switch (gettype($var))
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| 63 | {
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| 64 | case 'boolean':
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| 65 | self::$_output.=$var?'true':'false';
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| 66 | break;
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| 67 | case 'integer':
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| 68 | self::$_output.="$var";
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| 69 | break;
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| 70 | case 'double':
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| 71 | self::$_output.="$var";
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| 72 | break;
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| 73 | case 'string':
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| 74 | self::$_output.="'$var'";
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| 75 | break;
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| 76 | case 'resource':
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| 77 | self::$_output.='{resource}';
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| 78 | break;
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| 79 | case 'NULL':
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| 80 | self::$_output.="null";
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| 81 | break;
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| 82 | case 'unknown type':
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| 83 | self::$_output.='{unknown}';
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| 84 | break;
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| 85 | case 'array':
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| 86 | if (self::$_depth<=$level)
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| 87 | self::$_output.='array(...)';
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| 88 | else if (empty($var))
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| 89 | self::$_output.='array()';
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| 90 | else
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| 91 | {
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| 92 | $keys=array_keys($var);
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| 93 | $spaces=str_repeat(' ',$level*4);
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| 94 | self::$_output.="array\n".$spaces.'(';
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| 95 | foreach ($keys as $key)
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| 96 | {
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| 97 | self::$_output.="\n".$spaces." [$key] => ";
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| 98 | self::$_output.=self::dumpInternal($var[$key],$level+1);
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| 99 | }
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| 100 | self::$_output.="\n".$spaces.')';
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| 101 | }
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| 102 | break;
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| 103 | case 'object':
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| 104 | if (($id=array_search($var,self::$_objects,true))!==false)
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| 105 | self::$_output.=get_class($var).'#'.($id+1).'(...)';
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| 106 | else if (self::$_depth<=$level)
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| 107 | self::$_output.=get_class($var).'(...)';
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| 108 | else
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| 109 | {
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| 110 | $id=array_push(self::$_objects,$var);
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| 111 | $className=get_class($var);
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| 112 | $members=(array)$var;
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| 113 | $keys=array_keys($members);
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| 114 | $spaces=str_repeat(' ',$level*4);
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| 115 | self::$_output.="$className#$id\n".$spaces.'(';
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| 116 | foreach ($keys as $key)
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| 117 | {
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| 118 | $keyDisplay=strtr(trim($key),array("\0"=>':'));
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| 119 | self::$_output.="\n".$spaces." [$keyDisplay] => ";
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| 120 | self::$_output.=self::dumpInternal($members[$key],$level+1);
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| 121 | }
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| 122 | self::$_output.="\n".$spaces.')';
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| 123 | }
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| 124 | break;
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| 125 | }
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| 126 | }
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| 127 | }
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