Extras for pack() and unpack() functions.
composer require ddrv/extra-pack
<?php
require ('vendor/autoload.php');<?php
$data = array(
'key1' => 'string',
'key2' => 5,
'key3' => .0001
);
$format = 'A6key1/Ckey2/t4key3';
$binary = \Ddrv\Extra\Pack::pack($format, $data);
$result = \Ddrv\Extra\Pack::unpack($format, $binary);
print_r($result);Array
(
[key1] => string
[key2] => 5
[key3] => .0001
)
character[+number]+key[+:added]
Elements are separated by a slash
Examples:
| Format | Key | Result |
|---|---|---|
| A6name | name | string with length 6 |
| Coffset:2000 | offset | Number from 0 to 255 + 2000 |
Currently implemented formats are:
| Character | Is extras | Description | Support from PHP version | Number | Added |
|---|---|---|---|---|---|
| @ | No | NUL-fill to absolute position | 5.0 | Position | No using |
| ~ | Yes | NUL-ended string | 5.0 | No using | No using |
| Z | No | NUL-padded string | 5.5.0 | Length of string | No using |
| x | No | NUL byte | 5.0 | Count iterations | No using |
| X | No | Back up one byte | 5.0 | Length of reserved string | No using |
| a | No | NUL-padded string | 5.0 | Length of string may be * |
No using |
| A | No | SPACE-padded string | 5.0 | Length of string may be * |
No using |
| h | No | Hex string, low nibble first | 5.0 | No using | No using |
| H | No | Hex string, high nibble first | 5.0 | No using | No using |
| c | No | signed char | 5.0 | No using | Added number |
| C | No | unsigned char | 5.0 | No using | Added number |
| s | No | signed short (always 16 bit, machine byte order) | 5.0 | No using | Added number |
| S | No | unsigned short (always 16 bit, machine byte order) | 5.0 | No using | Added number |
| n | No | unsigned short (always 16 bit, big endian byte order) | 5.0 | No using | Added number |
| v | No | unsigned short (always 16 bit, little endian byte order) | 5.0 | No using | Added number |
| m | Yes | signed medium (always 24 bit, machine byte order) | 5.0 | No using | Added number |
| M | Yes | unsigned medium (always 24 bit, machine byte order) | 5.0 | No using | Added number |
| l | No | signed long (always 32 bit, machine byte order) | 5.0 | No using | Added number |
| L | No | unsigned long (always 32 bit, machine byte order) | 5.0 | No using | Added number |
| N | No | unsigned long (always 32 bit, big endian byte order) | 5.0 | No using | Added number |
| V | No | unsigned long (always 32 bit, little endian byte order) | 5.0 | No using | Added number |
| q | No | signed long long (always 64 bit, machine byte order) | 5.6.3 | No using | Added number |
| Q | No | unsigned long long (always 64 bit, machine byte order) | 5.6.3 | No using | Added number |
| J | No | unsigned long long (always 64 bit, big endian byte order) | 5.6.3 | No using | Added number |
| P | No | unsigned long long (always 64 bit, little endian byte order) | 5.6.3 | No using | Added number |
| i | No | signed integer (machine dependent size and byte order) | 5.0 | No using | Added number |
| I | No | unsigned integer (machine dependent size and byte order) | 5.0 | No using | Added number |
| f | No | float (machine dependent size and representation) | 5.0 | No using | Added number |
| g | No | float (machine dependent size, little endian byte order) | 7.0.15, 7.1.1 | No using | Added number |
| G | No | float (machine dependent size, big endian byte order) | 7.0.15, 7.1.1 | No using | Added number |
| d | No | double (machine dependent size and representation) | 5.0 | No using | Added number |
| e | No | double (machine dependent size, little endian byte order) | 7.0.15, 7.1.1 | No using | Added number |
| E | No | double (machine dependent size, big endian byte order) | 7.0.15, 7.1.1 | No using | Added number |
| t | Yes | signed tiny rounded (always 8 bit, machine byte order) | 5.0 | Number of digits after the decimal point | Added number |
| T | Yes | unsigned tiny rounded (always 8 bit, machine byte order) | 5.0 | Number of digits after the decimal point | Added number |
| o | Yes | signed short rounded (always 16 bit, machine byte order) | 5.0 | Number of digits after the decimal point | Added number |
| O | Yes | unsigned short rounded (always 16 bit, machine byte order) | 5.0 | Number of digits after the decimal point | Added number |
| r | Yes | signed medium rounded (always 24 bit, machine byte order) | 5.0 | Number of digits after the decimal point | Added number |
| R | Yes | unsigned medium rounded (always 24 bit, machine byte order) | 5.0 | Number of digits after the decimal point | Added number |
| b | Yes | signed big rounded (always 32 bit, machine byte order) | 5.0 | Number of digits after the decimal point | Added number |
| B | Yes | unsigned big rounded (always 32 bit, machine byte order) | 5.0 | Number of digits after the decimal point | Added number |
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