Skill Topic · Cinematic

PHP Callback Functions — Functions Ko Argument Me Pass Karna

Version: v2.0.0 | Modified: 2026-03-25

Overview

PHP Callback Functions — Functions Ko Argument Me Pass Karna — Quick Facts

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Feature: Anonymous

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Syntax: function($x) use ($y) { return $x…

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Outer variables: use() required

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Multi-line: Yes

Topic 1

Callback Kya Hai?

📚 Normally jab hum function call karte hain to seedha uska naam likh ke call kar dete hain…

Topic 2

Basic Callback Example

💡 Sabse simple callback example dekhte hain. Yahan greet() function ek callable parameter…

Topic 3

Callback with Parameters

🎯 Callbacks ko parameters bhi pass ho sakte hain. Jab calling function callback ko execute…

Topic 4

Anonymous Functions (Closures) as Callbacks

⭐ Har baar callback ke liye alag named function banana zaroori nahi hai. Agar function…

Topic 5

Arrow Functions (PHP 7.4+)

🔑 PHP 7.4 me arrow functions aayi — yeh anonymous functions ka short syntax hai. fn(params)…

Topic 6

Built-in Functions with Callbacks

✨ PHP ke bahut saare built-in functions callbacks accept karte hain. Sabse zyada use hone…

Topic 7

call_user_func() and call_user_func_array()

🌟 Kabhi kabhi tum dynamically decide karna chahte ho ke kaunsa function call karna hai —…

Topic 8

Closure use() — Outer Variables Access

🚀 Anonymous functions by default outer scope ke variables access nahi kar sakti. Agar tumhe…

Topic 9

Practical Example — Event System

📚 Event system callbacks ka advanced use case hai. Tum events define karte ho (jaise…

Topic 10

Callback Types Table

💡 PHP me callbacks define karne ke kayi tareeqe hain. Neeche ek table hai jo saare types…

Topic 11

Summary

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Callback ek function hai jo doosre…

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String me function naam…

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array_map() har element pe…

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array_filter() callback ki…

Quick Quiz

Quiz — Question 1

PHP Callback Functions — Functions Ko Argument Me Pass Karna ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

PHP Callback Functions — Functions Ko Argument Me Pass Karna ka 'Syntax' kya hai?

Complete! 🎉

PHP Callback Functions — Functions Ko Argument Me Pass Karna Complete!

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