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<?php |
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/** |
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* Copyright (c) 1998-2015 Browser Capabilities Project. |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a |
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* copy of this software and associated documentation files (the "Software"), |
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* to deal in the Software without restriction, including without limitation |
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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* and/or sell copies of the Software, and to permit persons to whom the |
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* Software is furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included |
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* in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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* |
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* @category Browscap-PHP |
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* |
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* @copyright 1998-2015 Browser Capabilities Project |
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* @license http://www.opensource.org/licenses/MIT MIT License |
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* |
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* @link https://github.com/browscap/browscap-php/ |
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* @since added with version 3.0 |
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*/ |
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namespace BrowscapPHP\Data; |
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/** |
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* Class PropertyHolder. |
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* |
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* @category Browscap |
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* |
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* @author Thomas Müller <[email protected]> |
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*/ |
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class PropertyHolder |
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{ |
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const TYPE_STRING = 'string'; |
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const TYPE_GENERIC = 'generic'; |
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const TYPE_NUMBER = 'number'; |
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const TYPE_BOOLEAN = 'boolean'; |
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const TYPE_IN_ARRAY = 'in_array'; |
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/** |
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* Get the type of a property. |
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* |
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* @param string $propertyName |
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* |
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* @throws \Exception |
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* |
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* @return string |
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*/ |
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public function getPropertyType($propertyName) |
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{ |
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$stringProperties = [ |
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'Comment' => 1, |
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'Browser' => 1, |
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'Browser_Maker' => 1, |
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'Browser_Modus' => 1, |
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'Platform' => 1, |
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'Platform_Name' => 1, |
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'Platform_Description' => 1, |
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'Device_Name' => 1, |
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'Platform_Maker' => 1, |
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'Device_Code_Name' => 1, |
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'Device_Maker' => 1, |
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'Device_Brand_Name' => 1, |
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'RenderingEngine_Name' => 1, |
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'RenderingEngine_Description' => 1, |
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'RenderingEngine_Maker' => 1, |
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'Parent' => 1, |
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'PropertyName' => 1, |
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'CDF' => 1, |
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'PatternId' => 1, |
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]; |
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if (array_key_exists($propertyName, $stringProperties)) { |
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return self::TYPE_STRING; |
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} |
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$arrayProperties = [ |
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'Browser_Type' => 1, |
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'Device_Type' => 1, |
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'Device_Pointing_Method' => 1, |
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'Browser_Bits' => 1, |
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'Platform_Bits' => 1, |
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]; |
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if (array_key_exists($propertyName, $arrayProperties)) { |
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return self::TYPE_IN_ARRAY; |
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} |
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$genericProperties = [ |
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'Platform_Version' => 1, |
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'RenderingEngine_Version' => 1, |
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'Released' => 1, |
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'Format' => 1, |
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'Type' => 1, |
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]; |
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if (array_key_exists($propertyName, $genericProperties)) { |
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return self::TYPE_GENERIC; |
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} |
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$numericProperties = [ |
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'Version' => 1, |
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'CssVersion' => 1, |
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'AolVersion' => 1, |
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'MajorVer' => 1, |
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'MinorVer' => 1, |
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'aolVersion' => 1, |
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]; |
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if (array_key_exists($propertyName, $numericProperties)) { |
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return self::TYPE_NUMBER; |
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} |
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$booleanProperties = [ |
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'Alpha' => 1, |
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'Beta' => 1, |
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'Win16' => 1, |
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'Win32' => 1, |
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'Win64' => 1, |
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'Frames' => 1, |
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'IFrames' => 1, |
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'Tables' => 1, |
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'Cookies' => 1, |
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'BackgroundSounds' => 1, |
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'JavaScript' => 1, |
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'VBScript' => 1, |
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'JavaApplets' => 1, |
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'ActiveXControls' => 1, |
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'isMobileDevice' => 1, |
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'isTablet' => 1, |
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'isSyndicationReader' => 1, |
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'Crawler' => 1, |
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'MasterParent' => 1, |
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'LiteMode' => 1, |
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'isFake' => 1, |
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'isAnonymized' => 1, |
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'isModified' => 1, |
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'isBanned' => 1, |
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'supportsCSS' => 1, |
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'AOL' => 1, |
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]; |
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if (array_key_exists($propertyName, $booleanProperties)) { |
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return self::TYPE_BOOLEAN; |
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} |
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throw new \InvalidArgumentException("Property {$propertyName} did not have a defined property type"); |
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} |
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/** |
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* @param string $property |
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* @param string $value |
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* |
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* @throws \InvalidArgumentException |
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* |
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* @return string |
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*/ |
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public function checkValueInArray($property, $value) |
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{ |
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switch ($property) { |
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case 'Browser_Type': |
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$allowedValues = [ |
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'Useragent Anonymizer' => 1, |
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'Browser' => 1, |
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'Offline Browser' => 1, |
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'Multimedia Player' => 1, |
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'Library' => 1, |
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'Feed Reader' => 1, |
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'Email Client' => 1, |
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'Bot/Crawler' => 1, |
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'Application' => 1, |
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'Tool' => 1, |
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'unknown' => 1, |
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]; |
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1 |
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break; |
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case 'Device_Type': |
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$allowedValues = [ |
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1 |
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'Console' => 1, |
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'TV Device' => 1, |
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'Tablet' => 1, |
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'Mobile Phone' => 1, |
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'Smartphone' => 1, // actual mobile phone with touchscreen |
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'Feature Phone' => 1, // older mobile phone |
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'Mobile Device' => 1, |
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'FonePad' => 1, // Tablet sized device with the capability to make phone calls |
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'Desktop' => 1, |
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'Ebook Reader' => 1, |
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'Car Entertainment System' => 1, |
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'Digital Camera' => 1, |
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'unknown' => 1, |
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]; |
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1 |
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break; |
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1 |
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case 'Device_Pointing_Method': |
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// This property is taken from http://www.scientiamobile.com/wurflCapability |
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$allowedValues = [ |
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'joystick' => 1, |
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'stylus' => 1, |
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'touchscreen' => 1, |
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'clickwheel' => 1, |
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'trackpad' => 1, |
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'trackball' => 1, |
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'mouse' => 1, |
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'unknown' => 1, |
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]; |
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1 |
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break; |
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1 |
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case 'Browser_Bits': |
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case 'Platform_Bits': |
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$allowedValues = [ |
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1 |
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'0' => 1, |
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'8' => 1, |
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'16' => 1, |
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'32' => 1, |
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'64' => 1, |
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]; |
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1 |
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break; |
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default: |
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throw new \InvalidArgumentException('Property "' . $property . '" is not defined to be validated'); |
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break; |
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} |
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1 |
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if (array_key_exists($value, $allowedValues)) { |
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1 |
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return $value; |
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} |
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throw new \InvalidArgumentException( |
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'invalid value given for Property "' . $property . '": given value "' . (string) $value . '", allowed: ' |
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. json_encode($allowedValues) |
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); |
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} |
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} |
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This check looks for unreachable code. It uses sophisticated control flow analysis techniques to find statements which will never be executed.
Unreachable code is most often the result of
return
,die
orexit
statements that have been added for debug purposes.In the above example, the last
return false
will never be executed, because a return statement has already been met in every possible execution path.