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 <?php
/*
* The MIT License
*
* Copyright 2016 Brian Dayhoff <brian@mopsyd.me>.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
namespace oroboros;
/**
* <Oroboros Common Library>
* @todo factor this into a trait
* @review whether or not this class is neccessary any longer. Utilities likely cover it's scope already.
* @author Brian Dayhoff <brian@mopsyd.me>
* @final
* @since 0.0.2a
*/
final class Common {
const FLAG_RECURSIVE = '::recursive::';
/**
* <Array Each Method>
* Applies a callback as a filter to each element of the subject.
* The callback should expect the first parameter (the value) to
* be passed by reference, and the second parameter (the key) to
* be passed normally.
*
* The callback parameter may be any of the following:
* -any calleable argument
* -an object with a public method called 'execute'
* -an array, with an object as the first parameter and a public method as the second parameter
* @param array $subject
* @param mixed $callback
* @return boolean [true] if execution occurred, [false] if the callback was invalid.
* @see \oroboros\Common::map() for passback without referential changes
* @since 0.0.2a
*/
static function each(array &$subject, $callback) {
$result = FALSE;
if (!is_callable($callback) &&
!((is_array($callback) && isset($callback[0]) && isset($callback[1]) && is_object($callback[0]) && is_string($callback[1]) && is_callable($callback[0]->{$callback[1]})
) || (is_object($callback) && method_exists($callback, 'execute') && is_callable($callback->execute)
) || ((is_object($callback)) && method_exists($callback, 'execute') && is_callable($callback::execute)
))) {
return FALSE;
}
if (is_callable($callback)) {
$result = array_walk($subject, $callback);
} elseif (is_array($callback) && isset($callback[0]) && isset($callback[1]) && is_object($callback[0]) && is_string($callback[1]) && is_callable($callback[0]->{$callback[1]})) {
//execute callback
$result = array_walk($callback[0]->{$callback[1]}, $callback);
} elseif ((is_object($callback) && isset($callback->execute) && is_callable($subject, $callback->execute)
)) {
//execute object callback
$result = array_walk($subject, $callback::execute);
} elseif (((is_object($callback) || is_string($callback)) && isset($callback->execute) && is_callable($callback::execute)
)) {
//execute static callback
$result = array_walk($subject, $callback::execute);
}
return $result;
}
/**
* <Array Map Method>
* Applies a callback as a filter to each element of the subject.
* The callback should expect the first parameter (the value) and
* the second parameter (the key) to be passed normally, and should
* return a new result. Does not change original subject. Unlike
* native PHP array_map, this follows the same argument pattern
* as array walk, and passes the key as the second argument.
*
* The callback parameter may be any of the following:
* -any calleable argument
* -an object with a public method called 'execute'
* -an array, with an object as the first parameter and a public method as the second parameter
* @param array $subject
* @param mixed $callback
* @return array|boolean The results of the callback, or [false] if the callback was invalid.
* @see \oroboros\Common::each() for referential changes
* @since 0.0.2a
*/
static function map(array $subject, $callback) {
$result = array();
if (!is_callable($callback) &&
!((is_array($callback) && isset($callback[0]) && isset($callback[1]) && is_object($callback[0]) && is_string($callback[1]) && is_callable($callback[0]->{$callback[1]})
) || (is_object($callback) && method_exists($callback, 'execute') && is_callable($callback->execute)
) || ((is_object($callback)) && method_exists($callback, 'execute') && is_callable($callback::execute)
))) {
return FALSE;
}
foreach ($subject as $key => $value) {
if (is_callable($callback)) {
$result[$key] = $callback($value, $key);
} elseif (is_array($callback) && isset($callback[0]) && isset($callback[1]) && is_object($callback[0]) && is_string($callback[1]) && is_callable($callback[0]->{$callback[1]})) {
//execute callback
$result[$key] = $callback[0]->{$callback[1]}($value, $key);
} elseif ((is_object($callback) && isset($callback->execute) && is_callable($subject, $callback->execute)
)) {
//execute object callback
$result[$key] = $callback->execute($value, $key);
} elseif (((is_object($callback) || is_string($callback)) && isset($callback->execute) && is_callable($callback::execute)
)) {
//execute static callback
$result[$key] = $callback::execute($value, $key);
}
}
return $result;
}
/**
* <Cast Data to Type Method>
* Casts the supplied data [$data] to the type specified by [$type].
* Will use [$delimiter] for implode/explode operations.
* @param string $type [string|array|object|int|bool]
* @param mixed $data The data to cast
* @param type $delimiter (optional) A delimiter for implode/explode operations, when casting strings to objects or arrays.
* @param array $flags (optional) Accepts [ ::recursive:: ] (unimplemented)
* @return mixed Returns [$data] cast to the type specified by [$type], or NULL if not possible.
* @since 0.0.2a
*/
static function cast($type, $data, $delimiter = ' ', array $flags = array()) {
switch ($type) {
case 'string':
$result = (is_string($data) ? $data : ((is_array($data)) ? implode($delimiter, $data) : ((is_int($data) || (is_bool($data)) || (is_object($data))) ? (string) $data : NULL ) ) );
break;
case 'array':
$result = (is_string($data) ? explode($delimiter, $data) : ((is_array($data) || (is_object($data))) ? json_decode(json_encode($data, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE), JSON_OBJECT_AS_ARRAY) : ((is_int($data)) ? array($data) : ((is_bool($data)) ? (array) $data : FALSE) ) ) );
break;
case 'object':
$result = (is_string($data) ? json_decode(json_encode(explode($delimiter, $data), JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE)) : ((is_array($data)) ? json_decode(json_encode($data, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE)) : ((is_object($data)) ? $data : NULL) ) );
break;
case 'int':
$result = (is_string($data) ? (int) $data : ((is_int($data)) ? $data : ((is_bool($data)) ? (($data) ? 1 : 0) : NULL) ) );
break;
case 'bool':
$result = (is_string($data) ? (($data) ? 'true' : 'false') : ((is_array($data)) ? ((empty($data)) ? FALSE : TRUE) : ((is_object($data)) ? TRUE : ((is_int($data)) ? (($data) ? TRUE : FALSE) : ((is_bool($data)) ? $data : ((is_null($data)) ? 'null' : NULL)
) ) ) ) );
break;
default:
return NULL;
break;
}
return $result;
}
/**
* <Check Internet Connection>
* This method is meant to help prevent
* requests if the system is running on
* a dev machine without an internet
* connection. This makes a safe check
* to determine whether to serve resources
* from a CDN or locally.
* @return boolean [true] if connected to the internet, [false] if no network connection available.
* @note The site used here [example.com] is maintained by IANA, and should never be down unless the entire internet is down, which should circumvent any false flags.
* @since 0.0.2a
*/
static function isInternetAccessible() {
$connected = @fsockopen("example.com", 80);
if ($connected){
$result = true;
fclose($connected);
}else{
$result = false;
}
return $result;
}
}