Php
/
Array
- 1 Basics 5
-
Quotes S
-
Constants S
-
Control structures S
-
Reference S
-
Number systems S
- 2 Variables 4
-
Definition S
-
Variable variable S
-
Exists S
-
Type casting S
- 3 Operators 5
-
Aritmetic S
-
Bitwise S
-
String S
-
Comparison S
-
Logical S
- 4 Function 4
-
Definition S
-
Anonymous S
-
Reference S
-
Variable arguments S
- 5 Array 7
-
Basics S
-
Operations S
-
Create S
-
Search S
-
Modify S
-
Sort S
-
Storage S
- 6 String 9
-
Basics
-
Compare
-
Search
-
Replace
-
Format
-
Regexp
-
Parse
-
Formating
-
Json
- 7 Streams 6
-
File open
-
Read file
-
Read csv
-
File contents
-
Context
-
Ob_start
- 8 Oop 6
-
Object instantiation S
-
Class constructor
-
Interfaces, abstract
-
Resource visibility
-
Class constants
-
Namespaces
- 9 Features 9
-
Autoload
-
Class reflection
-
Magic methods
-
Exceptions S
-
Late static binding
-
Type hinting
-
SPL
-
PHPUNIT
-
PHAR
- 10 Versions 2
-
Php7.4 S
-
Php8.0 S
- 11 Http 4
-
Headers
-
File Uploads
-
Cookies
-
Sessions
- 12 Design Patterns 4
-
Singleton Pattern S
-
Observer Pattern
-
Strategy Pattern
-
Registry
- 13 Modern Php 8
-
Composer S
-
Slim Framework
-
Autoloader
-
Package
-
Releases
-
Generators
-
Dependency Injection
-
Middleware
- 14 Create Framework 7
-
App
-
Http Foundation
-
Front Controller
-
Routing
-
Render Controller
-
Resolver
-
SoC
- 15 Frameworks 4
-
Symfony v5
-
Laravel v8
-
Laminas v3
-
Codeigniter v4
- 16 Composer 5
-
Guzzle
-
Carbon
-
Faker
-
Math
-
Requests
- 17 Symfony 6
-
Routes S
-
Annotations
-
Flex
-
Controllers
-
Doctrine
-
Templating
S
R
Q
Php Array Create
Create an array with range, split into chunks Array merge with (+) operator, preserves keys $A = range(1,100); $B = array_chunk($A, 2); // [1,2] [3,4]...
Chunks
Split an array into separate parts.
/**
* Create an array containing a range of elements ...
* then split into chunks
*/
$data = range(1,100);
$chunks = array_chunk($data, 2);
foreach($chunks as $v) {
echo " $v[0], $v[1] \n";
}
# 1, 2 / 3, 4 ... 99, 100
Merge
Merge one or more arrays.
/**
* Merge one or more arrays
*
* If arrays have the same string keys ...
* the later value for that key will be overwriten
*
* If don't want to ovewrite use the + array union operator
*/
$A = array_merge((array) 'foo', [1, 2]);
$B = array_merge(['color'=> 'red', 1], ['a', 'color'=>'green']);
$C = ['a' => 'A', 1] + ['a' => 'B', 2, 3];
echo 'A: ' . print_r($A, true); // foo, 1, 2
echo 'B: ' . print_r($B, true); // green, 1, a
echo 'C: ' . print_r($C, true); // A, 1, 3
Diff
All the values of $A that do not appear in $B
/**
* Diff returns ...
* all values in an array not appearing in another
*
* Intersect keeps ...
* all the values of each element
*/
$A = [1, 2, 3];
$B = [1, 3, 4];
print_r( array_diff($A, $B) ); // 2
print_r( array_intersect($A, $B) ); // 1, 3
➥ Questions