At this point, we still have the same page, but we reduce its complexity by decoupling the context blocks. <\/p>\n

Cache<\/strong><\/p>

Environment<\/code>Objects can not only be used to load templates. If we pass using the cache<\/code> option of the associated directory, Twig will cache the compiled template, thus avoiding parsing the template in subsequent requests. The compiled template will be stored in the directory we provide. Note that this is the cache for the compiled templates, not the cache for the evaluated templates. This means that Twig will parse, compile and save the template file. All subsequent requests still require evaluation templates, but the first step is already done for you. Let's cache the template in the example by editing the bootstrap.php<\/code> file: <\/p>\n

 Hello \" . $name . \"<\/p>\"; ?><\/pre>\n
 (The following content is similar to the original text, but some statement adjustments and paragraph divisions have been made, and the image position remains unchanged) <\/strong><\/p>\n
Cycle<\/strong><\/p>\n
 In our example, we have seen how to loop with Twig. Basically, we use the for<\/code> tag and assign an alias to each element in the specified array. In this case, we assign an alias to the products<\/code> array. After that, we can use the product<\/code> operator to access all properties in each array element. We use the .<\/code> tag to indicate the end of the loop. We can also loop through numbers or letters using the endfor<\/code> operator. As shown below: ..<\/code>\n<\/p>\n
Hello {{ name }}<\/p><\/pre> or letter: 
\n<\/p>\n
composer require twig\/twig<\/pre>This operator is just the syntax sugar of the 
 function, and it works the same way as the native PHPrange<\/code> function. An equally useful option is to add conditions to the loop. Using conditions, we can filter the elements to iterate. Suppose we want to iterate over all products with a value less than 250: range<\/code>\n<\/p>\n
Conditional statement<\/strong>\n<\/p>Twig also provides conditional statements in the form of 
, if<\/code>, elseif<\/code> and if not<\/code> tags. Just like in any programming language, we can use these tags to filter conditions in templates. Suppose in our example, we want to display only products with a value above 500: else<\/code>\n<\/p>\n
 'Notebook',\n        'description'   => 'Core i7',\n        'value'         =>  800.00,\n        'date_register' => '2017-06-22',\n    ],\n    [\n        'name'          => 'Mouse',\n        'description'   => 'Razer',\n        'value'         =>  125.00,\n        'date_register' => '2017-10-25',\n    ],\n    [\n        'name'          => 'Keyboard',\n        'description'   => 'Mechanical Keyboard',\n        'value'         =>  250.00,\n        'date_register' => '2017-06-23',\n    ],\n];\n\n\/\/ 渲染我們的視圖\necho $twig->render('index.html', ['products' => $products] );<\/pre>
Filter<\/strong>\n<\/p> Filters allow us to filter the information passed to the template and the format of the information displayed. Let's take a look at some of the most commonly used and important filters. A complete list of Twig filters can be found here. 
\n<\/p>Date and 
date_modify<\/code>\n<\/h3>
 Filter formats the date to the given format. As we see in the example: date<\/code>\n<\/p>\n
\n\n    \n        \n