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Frage 1
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What are valid PHP namespaces for TYPO3 extensions? (2)
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\typo3\MyExtension
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\TYPO3\CMS\MyExtension
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\VendorName\MyExtension
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\Symfony\Console
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\vendor_name\my_extension
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\AwesomeNerds\my_extension
Frage 2
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What are “return type declarations”? (2)
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They declare the type of an extension, e.g. “frontend plugin” or “backend module”.
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They specify how many methods a PHP class may contain.
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They specify the maximum time allowed to return an object.
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They specify the type of the value that is returned from a function or method.
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Return values can be marked as “nullable” by prefixing the type name with a question mark since PHP version 7.1.
Frage 3
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What does the “strict mode” do in PHP and how do you enable it? (2)
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The strict mode ensures that a variable passed to a function must exactly be of the declared type.
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The strict mode allows developers to restrict access to class properties.
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With the strict mode enabled, class names must be written in lowerCamelCase.
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The strict mode can be enabled and disabled in the TYPO3 Install Tool as required.
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The strict mode can be enabled by adding the line declare(strict_types = 1); at the top of the PHP file.
Frage 4
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Which statements about the PHP strict mode in TYPO3 extensions are correct? (3)
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The PHP strict mode must not be used in any TYPO3 extension files at all (TYPO3 v9 LTS does not support this feature).
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The PHP strict mode must not be enabled in the file ext_tables.php.
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The PHP strict mode must not be enabled in the file ext_localconf.php.
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The PHP strict mode must not be enabled in any TCA files under Configuration/TCA/.
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If the PHP strict mode is enabled in controller classes, the output of the action methods is not cached.
Frage 5
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Which standards should be followed when you develop TYPO3 extensions or contribute to the TYPO3 core? (3)
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PHP coding guidelines, following the PSR-2 standard.
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Style Guide for PHP Code (PEP-8).
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Specific guidelines apply to PHP file and directory names.
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The X-Mas Standard Policy applies to XLIFF language files.
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The Airbnb JavaScript Style Guide should be used for JavaScript files.
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TYPO3 is open-source software and therefore no coding guidelines exist.
Frage 6
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Which coding rules apply in TYPO3 according to the PSR standard? (2)
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Opening curly braces for classes must go on the same line.
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Opening curly braces for classes must go on the next line.
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Opening curly braces for if-statements must go on the same line.
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Opening curly braces for if-statements must go on the next line.
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TYPO3 does not adhere to any coding guidelines.
Frage 7
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Which coding rules apply in TYPO3 according to the PSR standard? (3)
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The maximum length of a line must not exceed 80 characters.
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Code must use four spaces for indenting, not tabs.
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A PHP file must not contain the closing PHP tag ?> at the end.
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Spaces are not allowed at the end of lines.
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Spaces are not allowed after a comma.
Frage 8
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What issues in the following code violate the official TYPO3 coding guidelines? (2)
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The namespace declaration must not start with a backslash \.
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The opening curly bracket for PHP classes must go on the next line.
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The opening curly bracket for methods must be on the same line as the method definition.
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The comments with the annotation must start with /* rather than /**.
Frage 9
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What issues in the following code violate the official TYPO3 coding guidelines? (2)
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The fully qualified class name (FQCN) must always be used.
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Property names must be written in lowerCamelCase.
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There must not be a return type hint “string”.
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There must not be a closing ?> tag.
Frage 10
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Which coding rules apply to JavaScript files in TYPO3 projects? (2)
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JavaScript files of the TYPO3 core must be located under typo3conf/assets/javascript/.
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JavaScript files in extensions should be located under Resources/Public/JavaScript/.
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TABs should be used for line indenting.
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Strings should always use double-quotes (").
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File endings of JavaScript files should be .js.
Frage 11
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Which statements about semantic versioning are correct? (2)
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A versioning scheme following semantic versioning has exactly two numbers separated by dots, e.g. 1.2.
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A versioning scheme following semantic versioning has exactly three numbers separated by dots, e.g. 1.2.3.
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A versioning scheme following semantic versioning has exactly four numbers separated by dots, e.g. 1.2.3.4.
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The last number represents “patch” versions when developers make backwards-compatible bug fixes.
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The first number indicates if a release is a long-term support release (LTS).
Frage 12
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Which statements about semantic versioning are correct? (2)
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Semantic versioning dictates that LTS-releases are marked appropriately, e.g. 1.2.3-lts.
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When developers fix a bug and release a backwards-compatible version, the patch number of the version should be increased.
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Semantic versioning is part of the PSR-2 coding standard.
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Semantic versioning introduces conventions about breaking changes and aim to make upgrade dependencies safe.
Frage 13
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Which statements about the composer.json file of a TYPO3 extension are correct? (2)
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The property type must be set to typo3-cms-extension.
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The property type must be set to plugin, if the extension provides a frontend plugin.
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The extension version is required and must be set with the property version.
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PHP classes should be auto-loaded with the appropriate namespace and path information.
Frage 14
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How do you make sure that a Composer package with a specific version does not get updated when you run the composer update command? (1)
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By adding a file DO_NOT_UPDATE to the extension directory.
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By adding the Composer namespace of the extension to the update-lock property in the composer.json file.
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By setting the exact version number with composer require.
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This is not possible, because composer update always forces updates.
Frage 15
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How do you install version 9.10.2 of the extension “Extension Builder” as an additional extension in an existing TYPO3 instance using Composer, assuming you have not added this package as a requirement yet? (1)
Note: the Composer namespace of the extension reads “friendsoftypo3/extension-builder”.
Antworten
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composer install friendsoftypo3/extension-builder:9.10.2
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composer install friendsoftypo3/extension-builder --version 9.10.2
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composer require friendsoftypo3/extension-builder/9.10.2
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composer require friendsoftypo3/extension-builder:9.10.2
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composer require --version=9.10.2 --vendor=friendsoftypo3 extension-builder
Frage 16
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What needs to be configured to auto-load PHP classes of a TYPO3 extension in a Composer-based setup? (1)
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The PSR-4 autoload information needs to be added to the file ext_localconf.php: $GLOBALS['TYPO3_CONF_VARS']['autoload'][$_EXTKEY] = [ "psr-4" => [ "Vendor\\MyExtension\\": "Classes/" ] ];
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The PSR-4 autoload information needs to be added to the file composer.json: "autoload": { "psr-4": { "Vendor\\MyExtension\\": "Classes/" } }
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A configuration file autoload.yaml in the typo3conf/ directory.
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A configuration file autoload.php in the typo3temp/ directory.
Frage 17
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You want to update a Composer package that uses semantic versioning. Which version constraint do you use to get bug fixes only? (2)
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=1.2.3
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^1.2.3
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~1.2.3
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1.2.*
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=bugfix
Frage 18
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You want to update a Composer package that uses semantic versioning. Which version constraint do you use if you want non-breaking updates only? (1)
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=1.2.3
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^1.2.3
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~1.2.3
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*1.2.3
Frage 19
Frage
Which statements about importing class names with the help of the use-statement are correct? (3)
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They should be used in TCA files located at Configuration/TCA/.
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They must not be used in the ext_tables.php file.
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They must not be used in the ext_localconf.php file.
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They can not be used for type annotations of Extbase model properties.
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Importing class names require PHP version 7.2 at least.
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Importing class names only work, if this feature is enabled in the Install Tool.
Frage 20
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Where can you import class names with the help of the use-statement? (2)
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In repository class definitions, when extending the class TYPO3\CMS\Extbase\Persistence\Repository.
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In ext_localconf.php files of extensions.
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In type annotations of Extbase controller action arguments.
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Importing class names is not supported by TYPO3 and Extbase at all.
Frage 21
Frage
Which of the following DocBlock and inline comments are valid by convention? (2)
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/** * @param $blog \Vendor\MyExtension\Domain\Model\Blog */
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/** * @param \Vendor\MyExtension\Domain\Model\Blog $blog */
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/** @var $blog \Vendor\MyExtension\Domain\Model\Blog */
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// @var $blog \Vendor\MyExtension\Domain\Model\Blog
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