Kint - Advanced PHP dumper

What is it?

Kint is a dumper in the vein of var_dump, with keyboard controls, search, access path provision, and automatic data parsing.

Install with composer

composer require kint-php/kint

<?php

include 'vendor/autoload.php';

d('Dumped with Kint');

Install a phar file

<?php

// Found in the build folder
include 'kint.phar';

d('Dumped with Kint');

Basic usage

<?php

Kint::dump($GLOBALS, $_SERVER); // Dump any number of variables
d($GLOBALS, $_SERVER); // d() is a shortcut for Kint::dump()

Kint::trace(); // Dump a backtrace

Kint::$enabled_mode = false; // Disable kint

Live demo

You have some data and you need to get more data out of it, but you don’t know how the data is structured until you poke around inside it.

<?php

$time = get_mysterious_value();
$data = get_mysterious_data();
$object = get_mysterious_object();

include 'kint.phar';

d($time, $data, $object);

This output was pre-recorded

↧⌕ $time integer 1486849709

2017-02-11T21:48:29+00:00

↧⌕ $data string (740) "eyJjb2xvciI6InJnYmEoMjU1LCAyNTUsIDAsIDAuNSkiLCJkYXRhIjpbeyJ1c2VybmFtZSI6Im1v...

Base64
Contents

⇄ base64_decode($data) string (555) "{"color":"rgba(255, 255, 0, 0.5)","data":[{"username":"monkey","created":"20... base64_decode($data)

Json (2)
Contents

⇄ color => string (22) "rgba(255, 255, 0, 0.5)" json_decode(base64_decode($data), true)['color']

yellow
#FF0
#FFFF00
#FFFF0080
rgba(255, 255, 0, 0.5)
hsla(60, 100%, 50%, 0.5)

⇄ data => array (6) json_decode(base64_decode($data), true)['data']

Table (6)
Contents (6)

 username created lastlog
0 monkey 2017-01-25 22:24:08 2017-01-28 14:49:51
1 tiger 2017-01-03 11:40:50 2017-01-09 17:44:48
2 mantis 2017-01-03 12:19:48 2017-01-10 14:46:51
3 snake 2017-01-11 22:15:25 2017-02-06 01:45:46
4 crane 2017-01-09 22:28:34 2017-01-22 00:12:26
5 panda 2017-01-14 13:20:40 2017-01-27 23:14:40

⇄
0 => array (3)
json_decode(base64_decode($data), true)['data'][0]
⇄username => string (6) "monkey"
json_decode(base64_decode($data), true)['data'][0]['username']
⇄created => string (19) "2017-01-25 22:24:08"
json_decode(base64_decode($data), true)['data'][0]['created']
⇄lastlog => string (19) "2017-01-28 14:49:51"
json_decode(base64_decode($data), true)['data'][0]['lastlog']
⇄
1 => array (3)
json_decode(base64_decode($data), true)['data'][1]
⇄username => string (5) "tiger"
json_decode(base64_decode($data), true)['data'][1]['username']
⇄created => string (19) "2017-01-03 11:40:50"
json_decode(base64_decode($data), true)['data'][1]['created']
⇄lastlog => string (19) "2017-01-09 17:44:48"
json_decode(base64_decode($data), true)['data'][1]['lastlog']
⇄
2 => array (3)
json_decode(base64_decode($data), true)['data'][2]
⇄username => string (6) "mantis"
json_decode(base64_decode($data), true)['data'][2]['username']
⇄created => string (19) "2017-01-03 12:19:48"
json_decode(base64_decode($data), true)['data'][2]['created']
⇄lastlog => string (19) "2017-01-10 14:46:51"
json_decode(base64_decode($data), true)['data'][2]['lastlog']
⇄
3 => array (3)
json_decode(base64_decode($data), true)['data'][3]
⇄username => string (5) "snake"
json_decode(base64_decode($data), true)['data'][3]['username']
⇄created => string (19) "2017-01-11 22:15:25"
json_decode(base64_decode($data), true)['data'][3]['created']
⇄lastlog => string (19) "2017-02-06 01:45:46"
json_decode(base64_decode($data), true)['data'][3]['lastlog']
⇄
4 => array (3)
json_decode(base64_decode($data), true)['data'][4]
⇄username => string (5) "crane"
json_decode(base64_decode($data), true)['data'][4]['username']
⇄created => string (19) "2017-01-09 22:28:34"
json_decode(base64_decode($data), true)['data'][4]['created']
⇄lastlog => string (19) "2017-01-22 00:12:26"
json_decode(base64_decode($data), true)['data'][4]['lastlog']
⇄
5 => array (3)
json_decode(base64_decode($data), true)['data'][5]
⇄username => string (5) "panda"
json_decode(base64_decode($data), true)['data'][5]['username']
⇄created => string (19) "2017-01-14 13:20:40"
json_decode(base64_decode($data), true)['data'][5]['created']
⇄lastlog => string (19) "2017-01-27 23:14:40"
json_decode(base64_decode($data), true)['data'][5]['lastlog']

	username	created	lastlog
0	monkey	2017-01-25 22:24:08	2017-01-28 14:49:51
1	tiger	2017-01-03 11:40:50	2017-01-09 17:44:48
2	mantis	2017-01-03 12:19:48	2017-01-10 14:46:51
3	snake	2017-01-11 22:15:25	2017-02-06 01:45:46
4	crane	2017-01-09 22:28:34	2017-01-22 00:12:26
5	panda	2017-01-14 13:20:40	2017-01-27 23:14:40

{"color":"rgba(255, 255, 0, 0.5)","data":[{"username":"monkey","created":"2017-01-25 22:24:08","lastlog":"2017-01-28 14:49:51"},{"username":"tiger","created":"2017-01-03 11:40:50","lastlog":"2017-01-09 17:44:48"},{"username":"mantis","created":"2017-01-03 12:19:48","lastlog":"2017-01-10 14:46:51"},{"username":"snake","created":"2017-01-11 22:15:25","lastlog":"2017-02-06 01:45:46"},{"username":"crane","created":"2017-01-09 22:28:34","lastlog":"2017-01-22 00:12:26"},{"username":"panda","created":"2017-01-14 13:20:40","lastlog":"2017-01-27 23:14:40"}]}

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

↧⌕ $object MysteriousObject#2 (2)

Properties (2)
Methods (1)
Static properties (1)

⇄
public definition -> string (143) "<?xml version="1.0"?> <Mystery created="2022-11-10 22:33:28"> <Name>Mysterio...
$object->definition
- XML
- Contents
- ⇄
  Mystery SimpleXMLElement (2)
  simplexml_load_string($object->definition)
  Children (2)
  Attributes (1)
  ⇄
  Name -> SimpleXMLElement (8) "Mysterio"
  simplexml_load_string($object->definition)->Name
  ⇄(string) Name string (8) "Mysterio"
  (string) simplexml_load_string($object->definition)->Name
  ⇄
  Value -> SimpleXMLElement (6) "Object"
  simplexml_load_string($object->definition)->Value
  toString
  Attributes (1)
  ⇄(string) Value string (6) "Object"
  (string) simplexml_load_string($object->definition)->Value
  ⇄type => string (10) "mysterious"
  (string) simplexml_load_string($object->definition)->Value['type']
  ⇄created => string (19) "2022-11-10 22:33:28"
  (string) simplexml_load_string($object->definition)['created']
- ```
<?xml version="1.0"?>
<Mystery created="2022-11-10 22:33:28">
    <Name>Mysterio</Name>
    <Value type="mysterious">Object</Value>
</Mystery>
```
protected created -> DateTime#5 2022-11-10 22:33:28 +00:00 UTC
- Methods (19)
- Static methods (6)
- Class constants (14)
- public __construct(string $datetime = 'now', ?DateTimeZone $timezone = null)
  public __serialize(): array
  public __unserialize(array $data): void
  public __wakeup()
  public format(string $format)
  public modify(string $modifier)
  public add(DateInterval $interval)
  public sub(DateInterval $interval)
  public getTimezone()
  public setTimezone(DateTimeZone $timezone)
  public getOffset()
  public getMicrosecond(): int
  public setTime(int $hour, int $minute, int $second = 0, int $microsecond = 0)
  public setDate(int $year, int $month, int $day)
  public setISODate(int $year, int $week, int $dayOfWeek = 1)
  public setTimestamp(int $timestamp)
  public setMicrosecond(int $microsecond): static
  public getTimestamp()
  public diff(DateTimeInterface $targetObject, bool $absolute = false)
- public static DateTime::__set_state(array $array)
  public static DateTime::createFromImmutable(DateTimeImmutable $object)
  public static DateTime::createFromInterface(DateTimeInterface $object): DateTime
  public static DateTime::createFromFormat(string $format, string $datetime, ?DateTimeZone $timezone = null)
  public static DateTime::createFromTimestamp(int|float $timestamp)
  public static DateTime::getLastErrors()
- ⇄public const ATOM :: string (13) "Y-m-d\TH:i:sP"
  \DateTimeInterface::ATOM
  ⇄public const COOKIE :: string (16) "l, d-M-Y H:i:s T"
  \DateTimeInterface::COOKIE
  ⇄public const ISO8601 :: string (13) "Y-m-d\TH:i:sO"
  \DateTimeInterface::ISO8601
  ⇄public const ISO8601_EXPANDED :: string (13) "X-m-d\TH:i:sP"
  \DateTimeInterface::ISO8601_EXPANDED
  ⇄public const RFC822 :: string (16) "D, d M y H:i:s O"
  \DateTimeInterface::RFC822
  ⇄public const RFC850 :: string (16) "l, d-M-y H:i:s T"
  \DateTimeInterface::RFC850
  ⇄public const RFC1036 :: string (16) "D, d M y H:i:s O"
  \DateTimeInterface::RFC1036
  ⇄public const RFC1123 :: string (16) "D, d M Y H:i:s O"
  \DateTimeInterface::RFC1123
  ⇄public const RFC7231 :: string (21) "D, d M Y H:i:s \G\M\T"
  \DateTimeInterface::RFC7231
  ⇄public const RFC2822 :: string (16) "D, d M Y H:i:s O"
  \DateTimeInterface::RFC2822
  ⇄public const RFC3339 :: string (13) "Y-m-d\TH:i:sP"
  \DateTimeInterface::RFC3339
  ⇄public const RFC3339_EXTENDED :: string (15) "Y-m-d\TH:i:s.vP"
  \DateTimeInterface::RFC3339_EXTENDED
  ⇄public const RSS :: string (16) "D, d M Y H:i:s O"
  \DateTimeInterface::RSS
  ⇄public const W3C :: string (13) "Y-m-d\TH:i:sP"
  \DateTimeInterface::W3C
⇄
public define(string $definition): void
$object->define()
```
Defined in <ROOT>/demoload.php:58
```
private static $loaded :: boolean true

Let’s take a look at this data with Kint

Click anywhere on the bar to unfold it
Double click + to unfold all children
Press d to toggle keyboard navigation.
Press a or the “⇄” icon on the right to see the access path to get at a piece of data.
Press s or the “⌕” icon on the right to open a live search.
Press f or the “↧” icon on the right to move the dump to a docked folder.
Change tabs to see different views of data.
You can sort tables of data by clicking on the headers.
Kint automatically detects, unpacks, and parses common formats like XML, base64, and JSON
Detects common patterns like colors, filenames, tables, and timestamps and displays extra information about them
Provides the user with the exact piece of code they need to access some information nested deep in the hierarchy

Tips & Tricks

You can set Kint::$enabled_mode = false; to turn off output (For example, in production)
You can set nonces for CSP environments:
- Kint\Renderer\AbstractRenderer::$js_nonce
- Kint\Renderer\AbstractRenderer::$css_nonce
There are a couple of real-time modifiers you can use:
- +d($var) will disregard depth level limits and output everything
  Careful, this can hang your browser on extremely large objects!
- !d($var) will expand the output automatically
- ~d($var) this call will output in plain text format
- -d($var) will attempt to ob_clean the previous output and flush after printing
Add heavy classes to the blacklist to improve performance:
Kint\Parser\BlacklistPlugin::$shallow_blacklist[] = SomeLargeClass::class;
To change display theme, use Kint\Renderer\RichRenderer::$theme = 'theme.css';. You can pass the absolute path to a CSS file, or use one of the built in themes:
- original.css (default)
- solarized.css
- solarized-dark.css
- aante-light.css
- aante-dark.css
You can install kint-helpers for more shortcuts and kint-twig for twig integration