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
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
<?php
class Misc
{
/**
* Returns human size
*
* @param float $filesize File size
* @param int $precision Number of decimals
* @return string Human size
*/
public static function getSize($filesize, $precision = 2)
{
$units = array('', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y');
foreach ($units as $idUnit => $unit)
{
if ($filesize > 1024)
$filesize /= 1024;
else
break;
}
return round($filesize, $precision).' '.$units[$idUnit].'B';
}
/**
* Returns hostname
*
* @return string Hostname
*/
public static function getHostname()
{
return php_uname('n');
}
/**
* Returns CPU cores number
*
* @return int Number of cores
*/
public static function getCpuCoresNumber()
{
if (!($num_cores = shell_exec('/bin/grep -c ^processor /proc/cpuinfo')))
{
if (!($num_cores = trim(shell_exec('/usr/bin/nproc'))))
{
$num_cores = 1;
}
}
if ((int)$num_cores <= 0)
$num_cores = 1;
return (int)$num_cores;
}
/**
* Returns server IP
*
* @return string Server local IP
*/
public static function getLanIp()
{
return $_SERVER['SERVER_ADDR'];
}
/**
* Seconds to human readable text
* Eg: for 36545627 seconds => 1 year, 57 days, 23 hours and 33 minutes
*
* @return string Text
*/
public static function getHumanTime($seconds)
{
$units = array(
'year' => 365*86400,
'day' => 86400,
'hour' => 3600,
'minute' => 60,
// 'second' => 1,
);
$parts = array();
foreach ($units as $name => $divisor)
{
$div = floor($seconds / $divisor);
if ($div == 0)
continue;
else
if ($div == 1)
$parts[] = $div.' '.$name;
else
$parts[] = $div.' '.$name.'s';
$seconds %= $divisor;
}
$last = array_pop($parts);
if (empty($parts))
return $last;
else
return join(', ', $parts).' and '.$last;
}
/**
* Returns a command that exists in the system among $cmds
*
* @param array $cmds List of commands
* @param string $args List of arguments (optional)
* @param bool $returnWithArgs If true, returns command with the arguments
* @return string Command
*/
public static function whichCommand($cmds, $args = '', $returnWithArgs = true)
{
$return = '';
foreach ($cmds as $cmd)
{
if (trim(shell_exec($cmd.$args)) != '')
{
$return = $cmd;
if ($returnWithArgs)
$return .= $args;
break;
}
}
return $return;
}
/**
* Allows to pluralize a word based on a number
* Ex : echo 'mot'.Misc::pluralize(5); ==> prints mots
* Ex : echo 'cheva'.Misc::pluralize(5, 'ux', 'l'); ==> prints chevaux
* Ex : echo 'cheva'.Misc::pluralize(1, 'ux', 'l'); ==> prints cheval
*
* @param int $nb Number
* @param string $plural String for plural word
* @param string $singular String for singular word
* @return string String pluralized
*/
public static function pluralize($nb, $plural = 's', $singular = '')
{
return $nb > 1 ? $plural : $singular;
}
/**
* Checks if a port is open (TCP or UPD)
*
* @param string $host Host to check
* @param int $port Port number
* @param string $protocol tcp or udp
* @param integer $timeout Timeout
* @return bool True if the port is open else false
*/
public static function scanPort($host, $port, $protocol = 'tcp', $timeout = 3)
{
if ($protocol == 'tcp')
{
$handle = @fsockopen($host, $port, $errno, $errstr, $timeout);
if (!$handle)
{
return false;
}
else
{
fclose($handle);
return true;
}
}
elseif ($protocol == 'udp')
{
$handle = @fsockopen('udp://'.$host, $port, $errno, $errstr, $timeout);
socket_set_timeout($handle, $timeout);
$write = fwrite($handle, 'x00');
$startTime = time();
$header = fread($handle, 1);
$endTime = time();
$timeDiff = $endTime - $startTime;
fclose($handle);
if ($timeDiff >= $timeout)
return true;
else
return false;
}
return false;
}
}
|
