README.md 2.67 KB
Newer Older
jiangbowen's avatar
jiangbowen committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169
Exporter
========

This component provides the functionality to export PHP variables for visualization.

## Usage

Exporting:

```php
<?php
use SebastianBergmann\Exporter\Exporter;

$exporter = new Exporter;

/*
Exception Object &0000000078de0f0d000000002003a261 (
    'message' => ''
    'string' => ''
    'code' => 0
    'file' => '/home/sebastianbergmann/test.php'
    'line' => 34
    'previous' => null
)
*/

print $exporter->export(new Exception);
```

## Data Types

Exporting simple types:

```php
<?php
use SebastianBergmann\Exporter\Exporter;

$exporter = new Exporter;

// 46
print $exporter->export(46);

// 4.0
print $exporter->export(4.0);

// 'hello, world!'
print $exporter->export('hello, world!');

// false
print $exporter->export(false);

// NAN
print $exporter->export(acos(8));

// -INF
print $exporter->export(log(0));

// null
print $exporter->export(null);

// resource(13) of type (stream)
print $exporter->export(fopen('php://stderr', 'w'));

// Binary String: 0x000102030405
print $exporter->export(chr(0) . chr(1) . chr(2) . chr(3) . chr(4) . chr(5));
```

Exporting complex types:

```php
<?php
use SebastianBergmann\Exporter\Exporter;

$exporter = new Exporter;

/*
Array &0 (
    0 => Array &1 (
        0 => 1
        1 => 2
        2 => 3
    )
    1 => Array &2 (
        0 => ''
        1 => 0
        2 => false
    )
)
*/

print $exporter->export(array(array(1,2,3), array("",0,FALSE)));

/*
Array &0 (
    'self' => Array &1 (
        'self' => Array &1
    )
)
*/

$array = array();
$array['self'] = &$array;
print $exporter->export($array);

/*
stdClass Object &0000000003a66dcc0000000025e723e2 (
    'self' => stdClass Object &0000000003a66dcc0000000025e723e2
)
*/

$obj = new stdClass();
$obj->self = $obj;
print $exporter->export($obj);
```

Compact exports:

```php
<?php
use SebastianBergmann\Exporter\Exporter;

$exporter = new Exporter;

// Array ()
print $exporter->shortenedExport(array());

// Array (...)
print $exporter->shortenedExport(array(1,2,3,4,5));

// stdClass Object ()
print $exporter->shortenedExport(new stdClass);

// Exception Object (...)
print $exporter->shortenedExport(new Exception);

// this\nis\na\nsuper\nlong\nstring\nt...\nspace
print $exporter->shortenedExport(
<<<LONG_STRING
this
is
a
super
long
string
that
wraps
a
lot
and
eats
up
a
lot
of
space
LONG_STRING
);
```

## Installation

You can add this library as a local, per-project dependency to your project using [Composer](https://getcomposer.org/):

    composer require sebastian/exporter

If you only need this library during development, for instance to run your project's test suite, then you should add it as a development-time dependency:

    composer require --dev sebastian/exporter