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<?php namespace Arcanesoft\Foundation\ViewComposers\System; |
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use Illuminate\View\View; |
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/** |
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* Class ServerRequirementsComposer |
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* |
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* @package Arcanesoft\Foundation\ViewComposers\System |
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* @author ARCANEDEV <[email protected]> |
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*/ |
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class ServerRequirementsComposer |
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{ |
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/* ------------------------------------------------------------------------------------------------ |
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| Constants |
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| ------------------------------------------------------------------------------------------------ |
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*/ |
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const VIEW_NAME = 'foundation::admin.system.information._includes.server-requirements'; |
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/* ------------------------------------------------------------------------------------------------ |
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| Main Functions |
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| ------------------------------------------------------------------------------------------------ |
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*/ |
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/** |
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* Compose the view. |
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* |
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* @param \Illuminate\View\View $view |
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*/ |
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public function compose(View $view) |
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{ |
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$requirements['php'] = $this->checkPhpRequirements([ |
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'openssl', |
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'pdo', |
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'mbstring', |
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'tokenizer', |
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'xml', |
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]); |
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$requirements['apache'] = $this->checkApacheRequirements([ |
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'mod_rewrite', |
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]); |
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$view->with('requirements', $requirements); |
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} |
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/* ------------------------------------------------------------------------------------------------ |
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| Other Functions |
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| ------------------------------------------------------------------------------------------------ |
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*/ |
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/** |
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* Check the PHP requirements. |
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* |
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* @param array $requirements |
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* |
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* @return \Illuminate\Support\Collection |
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*/ |
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private function checkPhpRequirements(array $requirements) |
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{ |
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$requirements = array_combine($requirements, $requirements); |
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return collect($requirements)->transform(function ($requirement) { |
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return extension_loaded($requirement); |
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}); |
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} |
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/** |
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* Check the APACHE requirements. |
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* |
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* @param array $requirements |
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* |
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* @return \Illuminate\Support\Collection |
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*/ |
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private function checkApacheRequirements(array $requirements) |
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{ |
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if ( ! function_exists('apache_get_modules')) { |
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return collect([]); |
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} |
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$modules = apache_get_modules(); |
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$requirements = array_combine($requirements, $requirements); |
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return collect($requirements)->transform(function ($requirement) use ($modules) { |
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return in_array($requirement, $modules); |
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}); |
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} |
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} |
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ARCANESOFT /
Foundation
Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.
Let’s take a look at an example:
As you can see in this example, the array
$myArrayis initialized the first time when the foreach loop is entered. You can also see that the value of thebarkey is only written conditionally; thus, its value might result from a previous iteration.This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.