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
<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2016 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Db\Adapter\Platform;
class IbmDb2 extends AbstractPlatform
{
/**
* @var string
*/
protected $identifierSeparator = '.';
/**
* @param array $options
*/
public function __construct($options = [])
{
if (isset($options['quote_identifiers'])
&& ($options['quote_identifiers'] == false
|| $options['quote_identifiers'] === 'false')
) {
$this->quoteIdentifiers = false;
}
if (isset($options['identifier_separator'])) {
$this->identifierSeparator = $options['identifier_separator'];
}
}
/**
* {@inheritDoc}
*/
public function getName()
{
return 'IBM DB2';
}
/**
* {@inheritDoc}
*/
public function quoteIdentifierInFragment($identifier, array $safeWords = [])
{
if (! $this->quoteIdentifiers) {
return $identifier;
}
$safeWordsInt = ['*' => true, ' ' => true, '.' => true, 'as' => true];
foreach ($safeWords as $sWord) {
$safeWordsInt[strtolower($sWord)] = true;
}
$parts = preg_split(
'/([^0-9,a-z,A-Z$#_:])/i',
$identifier,
-1,
PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY
);
$identifier = '';
foreach ($parts as $part) {
$identifier .= isset($safeWordsInt[strtolower($part)])
? $part
: $this->quoteIdentifier[0]
. str_replace($this->quoteIdentifier[0], $this->quoteIdentifierTo, $part)
. $this->quoteIdentifier[1];
}
return $identifier;
}
/**
* {@inheritDoc}
*/
public function quoteIdentifierChain($identifierChain)
{
if ($this->quoteIdentifiers === false) {
if (is_array($identifierChain)) {
return implode($this->identifierSeparator, $identifierChain);
} else {
return $identifierChain;
}
}
$identifierChain = str_replace('"', '\\"', $identifierChain);
if (is_array($identifierChain)) {
$identifierChain = implode('"' . $this->identifierSeparator . '"', $identifierChain);
}
return '"' . $identifierChain . '"';
}
/**
* {@inheritDoc}
*/
public function quoteValue($value)
{
if (function_exists('db2_escape_string')) {
return '\'' . db2_escape_string($value) . '\'';
}
trigger_error(
'Attempting to quote a value in ' . __CLASS__ . ' without extension/driver support '
. 'can introduce security vulnerabilities in a production environment.'
);
return '\'' . str_replace("'", "''", $value) . '\'';
}
/**
* {@inheritDoc}
*/
public function quoteTrustedValue($value)
{
if (function_exists('db2_escape_string')) {
return '\'' . db2_escape_string($value) . '\'';
}
return '\'' . str_replace("'", "''", $value) . '\'';
}
/**
* {@inheritDoc}
*/
public function getIdentifierSeparator()
{
return $this->identifierSeparator;
}
}