[ PHP Programming MCQS ]

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[ PHP Programming MCQS ]

Useful GK for JPSC, JSSC, JET, Jharkhand Police and other exams.

441. PHP Code: echo array_product([2,3,4]); Output क्या होगा?

[A] 9

[B] 12

[C] 24

[D] 18

441. PHP Code: echo array_product([2,3,4]); What is the output?

[A] 9

[B] 12

[C] 24

[D] 18

सही उत्तर: 24

व्याख्या: 2 × 3 × 4 = 24

Correct Answer: 24

Explanation: 2 × 3 × 4 = 24

442. Closure में use keyword का उद्देश्य क्या है?

[A] Outer Variable Access

[B] Namespace Import

[C] Trait Import

[D] Session Access

442. What is the purpose of use keyword in Closures?

[A] Outer Variable Access

[B] Namespace Import

[C] Trait Import

[D] Session Access

सही उत्तर: Outer Variable Access

व्याख्या: Anonymous function के अंदर external variables उपयोग करने के लिए।

Correct Answer: Outer Variable Access

Explanation: Allows access to external variables.

443. PHP में Arrow Function किस version में introduce हुआ?

[A] PHP 7.2

[B] PHP 7.3

[C] PHP 7.4

[D] PHP 8.0

443. In which version were Arrow Functions introduced?

[A] PHP 7.2

[B] PHP 7.3

[C] PHP 7.4

[D] PHP 8.0

सही उत्तर: PHP 7.4

व्याख्या: Short closure syntax प्रदान करता है।

Correct Answer: PHP 7.4

Explanation: Provides short closure syntax.

444. Arrow Function का syntax कौन-सा है?

[A] function(){}

[B] fn() =>

[C] lambda()

[D] arrow()

444. Which is the syntax of an Arrow Function?

[A] function(){}

[B] fn() =>

[C] lambda()

[D] arrow()

सही उत्तर: fn() =>

व्याख्या: PHP 7.4 में introduced concise syntax।

Correct Answer: fn() =>

Explanation: Concise syntax introduced in PHP 7.4.

445. यदि दो Traits में same method हो तो conflict resolution के लिए क्या उपयोग किया जाता है?

[A] insteadof

[B] override

[C] extends

[D] resolve

445. What is used to resolve trait method conflicts?

[A] insteadof

[B] override

[C] extends

[D] resolve

सही उत्तर: insteadof

व्याख्या: Trait conflicts resolve करने के लिए।

Correct Answer: insteadof

Explanation: Used for trait conflict resolution.

446. Trait method alias बनाने के लिए कौन-सा keyword प्रयोग होता है?

[A] as

[B] alias

[C] use

[D] rename

446. Which keyword creates an alias for a trait method?

[A] as

[B] alias

[C] use

[D] rename

सही उत्तर: as

व्याख्या: Method का नया नाम देने के लिए।

Correct Answer: as

Explanation: Used to assign a new method name.

447. Composer में dependencies किस file में define होती हैं?

[A] composer.lock

[B] composer.json

[C] package.json

[D] config.php

447. In which file are Composer dependencies defined?

[A] composer.lock

[B] composer.json

[C] package.json

[D] config.php

सही उत्तर: composer.json

व्याख्या: Project dependencies composer.json में होती हैं।

Correct Answer: composer.json

Explanation: Dependencies are defined in composer.json.

448. composer install command क्या करता है?

[A] Dependencies Install करता है

[B] Dependencies Delete करता है

[C] Composer Remove करता है

[D] PHP Upgrade करता है

448. What does composer install do?

[A] Installs Dependencies

[B] Deletes Dependencies

[C] Removes Composer

[D] Upgrades PHP

सही उत्तर: Dependencies Install करता है

व्याख्या: composer.lock/composer.json से packages install करता है।

Correct Answer: Installs Dependencies

Explanation: Installs packages from composer files.

449. composer require command का उपयोग किसलिए होता है?

[A] Package Add करने के लिए

[B] Package Remove करने के लिए

[C] Package Rename करने के लिए

[D] Package Compile करने के लिए

449. What is composer require used for?

[A] Add Package

[B] Remove Package

[C] Rename Package

[D] Compile Package

सही उत्तर: Package Add करने के लिए

व्याख्या: नई dependency जोड़ता है।

Correct Answer: Add Package

Explanation: Adds a new dependency.

450. Laravel में Dependency Injection का मुख्य लाभ क्या है?

[A] Loose Coupling

[B] Tight Coupling

[C] More Memory

[D] More Queries

450. What is the main benefit of Dependency Injection in Laravel?

[A] Loose Coupling

[B] Tight Coupling

[C] More Memory

[D] More Queries

सही उत्तर: Loose Coupling

व्याख्या: Code maintainability और testing बेहतर होती है।

Correct Answer: Loose Coupling

Explanation: Improves maintainability and testing.