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ChapterCourseware
Chapter1Thirteenth day

PHP identifier

21 minutes12 seconds

PHP split command symbol - semicolon

07 minutes14 seconds

PHP program notes

10 minutes51 seconds

PHP hybrid method

04 minutes32 seconds

Introduction and declaration of variables

12 minutes39 seconds

mutable variable

06 minutes39 seconds

How to pass values ​​to variables

14 minutes47 seconds

variable scope

23 minutes49 seconds

5 commonly used functions for variables

17 minutes58 seconds

Predefined variables-GLOBALS-SEVER-FILES

32 minutes17 seconds

Predefined variables-REQUEST

18 minutes28 seconds

constant

20 minutes05 seconds

magic constant

18 minutes01 seconds
Chapter2fourteenth day

Yesterday review

35 minutes46 seconds

Data type-string

25 minutes54 seconds

Data type-common string functions

38 minutes51 seconds

Data type-int

Data type-float

Data type-boolean

Data type-object

datatype-null-resource

09 minutes20 seconds

Data types - several types provided by the manual

04 minutes26 seconds

Data type-conversion

11 minutes10 seconds

Operator - arithmetic operator

12 minutes35 seconds

Operator - assignment operator

03 minutes27 seconds

Operator - comparison operator

09 minutes39 seconds

Operator - Error Suppression Operator

05 minutes14 seconds

Operators - Increment and Decrement Operators

11 minutes51 seconds

Operator - logical operator

15 minutes02 seconds

Operators - string operators

07 minutes51 seconds
Chapter3Day 15

Bit operators--binary

35 minutes02 seconds

Bit operators--original code, one's complement, one's complement

11 minutes02 seconds

Bit operators--use bit operations

17 minutes59 seconds

Array operators

08 minutes14 seconds

Process control--if and ifelse

16 minutes45 seconds

Process control--elseif and switch

Process control--while loop

16 minutes35 seconds

Process control--dowhile loop

Process control--for loop

Case - One hundred dollars buys one hundred ducks

07 minutes14 seconds

Process Control--Cycle Case

12 minutes00 seconds

Process control --break

10 minutes19 seconds

The difference between process control--continue-- and break

07 minutes41 seconds

Process control--goto statement

04 minutes48 seconds

Process control--return statement

08 minutes07 seconds

Process control--file loading

19 minutes10 seconds
Chapter4Day 16

Yesterday review

22 minutes21 seconds

Introduction to functions

36 minutes00 seconds

Function calling mechanism

20 minutes11 seconds

function encapsulation

19 minutes32 seconds

variadic function

08 minutes13 seconds

Callback

06 minutes52 seconds

anonymous function

14 minutes54 seconds

internal function

05 minutes32 seconds

recursive call

22 minutes58 seconds

Website layout

49 minutes08 seconds
Chapter5Day 18

Methods of learning technology Quick start with object-oriented

40 minutes15 seconds

Introduction to object-oriented

20 minutes42 seconds

member properties

50 minutes58 seconds

How objects are passed

30 minutes43 seconds

member method

28 minutes48 seconds

Member methods(2)

05 minutes37 seconds

Member methods(3)

10 minutes04 seconds

Basic usage of constructor (1)

19 minutes50 seconds

Constructor (2) details

15 minutes39 seconds

default constructor

09 minutes04 seconds

Constructor summary and this

30 minutes32 seconds

Basic introduction to destructor and PHP program execution process

24 minutes57 seconds

Detailed explanation and best practices of destructor

47 minutes10 seconds

Garbage collection mechanism (understand)

07 minutes48 seconds
Chapter6Day 19

Yesterday review

19 minutes13 seconds

A basic introduction to access modifiers

22 minutes21 seconds

__get and assignment evaluation

38 minutes14 seconds

__set

11 minutes13 seconds

Additional information

45 minutes30 seconds

toString and added knowledge points

16 minutes27 seconds

Comparison of __clone and objects

22 minutes56 seconds

__call magic method

38 minutes17 seconds

Automatic loading of classes

38 minutes48 seconds

static properties

49 minutes30 seconds
Chapter7Day 20

Yesterday review

20 minutes24 seconds

Homework comments

28 minutes42 seconds

Basic introduction and detailed discussion of static methods

28 minutes43 seconds

Best Practices for Static Methods - Singleton Pattern (1)

36 minutes44 seconds

Best Practices for Static Methods - Singleton Pattern (2)

29 minutes22 seconds

abstract

28 minutes27 seconds

Introduction to packaging

21 minutes15 seconds

How to operate properties (protected and private) in three ways

53 minutes54 seconds
Chapter8Day 21

Overload 1

23 minutes17 seconds

Overloading static methods

12 minutes55 seconds

Classroom practice review of overloaded methods

11 minutes25 seconds

Overloading of properties

12 minutes30 seconds

A basic introduction to method rewriting

08 minutes30 seconds

Details of method overriding

20 minutes34 seconds

Details of method overriding

11 minutes38 seconds

Property override

06 minutes25 seconds

Polymorphism

28 minutes20 seconds

Practice questions

12 minutes15 seconds

Practice questions

04 minutes30 seconds

Introduction to abstract classes

22 minutes30 seconds

Details of abstract classes

16 minutes49 seconds

Interface explanation

43 minutes58 seconds

Interface explanation 2

10 minutes41 seconds
Chapter9Day 22

Yesterday review

20 minutes24 seconds

Basic introduction to the interface

36 minutes17 seconds

Discussion of interface details

21 minutes12 seconds

Comparison of interfaces and inheritance

19 minutes17 seconds

final

21 minutes54 seconds

class constant

30 minutes43 seconds

Object traversal

21 minutes10 seconds

Built-in standard classes

06 minutes53 seconds

Convert data types and objects to each other

15 minutes30 seconds

Basic introduction to serialization and deserialization

26 minutes52 seconds

Serialization and deserialization details

20 minutes56 seconds

Description of related functions of classes and objects

13 minutes28 seconds

traits

21 minutes23 seconds

first contact of reflex mechanism

19 minutes33 seconds

Reflection proxy call

24 minutes57 seconds

comprehensive reflex exercises

27 minutes54 seconds
Chapter10Day 23

Yesterday review

32 minutes14 seconds

Basic introduction to mysql database (1)

21 minutes41 seconds

Basic introduction to mysql database (2)-installing mysql

24 minutes50 seconds

Basic introduction to mysql database (3)-Basic use of mysql

29 minutes21 seconds

Basic introduction to mysql database (4)-three-tier structure

17 minutes03 seconds

Basic introduction to mysql database (5)-sql statement classification

10 minutes07 seconds

Basic introduction to creating a database

12 minutes54 seconds

Character set and validation rules

25 minutes41 seconds

Common database operations

24 minutes18 seconds

Database modification, backup and recovery

39 minutes20 seconds

Create table

29 minutes08 seconds

integer

36 minutes41 seconds

zerofill

13 minutes06 seconds

bit

11 minutes33 seconds

float and decimal

30 minutes16 seconds
Chapter11Day 24

Yesterday review

13 minutes39 seconds

String type(1)

41 minutes50 seconds

String type(2)

16 minutes57 seconds

date type

13 minutes20 seconds

enum and set

30 minutes12 seconds

Small exercises and tips for aligning data

17 minutes12 seconds

Modify table

20 minutes00 seconds

Program framework diagram of insert statement and comprehensive case

01 Hours08 minutes51 seconds

Comprehensive case curd

51 minutes19 seconds

Basic usage of select statement

55 minutes04 seconds

Basic use of select statement (2)

22 minutes59 seconds
Chapter12Day 25

Yesterday review

22 minutes41 seconds

Aggregation function count

15 minutes36 seconds

Aggregation function sum

26 minutes46 seconds

aggregate function avg

07 minutes29 seconds

Aggregation function max min

06 minutes06 seconds

Aggregation function group by

35 minutes24 seconds

mysql date function (1)

29 minutes07 seconds

Date function(3)

54 minutes17 seconds

String functions

19 minutes32 seconds

Math functions

18 minutes30 seconds

branch control function

20 minutes21 seconds

Other functions

16 minutes55 seconds

Enhancement of select statement (1)-enhancement of where clause

21 minutes01 seconds

Enhancement of select statement (2)-enhancement of order by clause

10 minutes40 seconds

Enhancement of select statement (3) - paging query

20 minutes35 seconds
Chapter13Day 26

Yesterday review

11 minutes05 seconds

Aggregation function enhancement

11 minutes07 seconds

group by having strengthened

03 minutes48 seconds

Comments on homework

16 minutes40 seconds

Summary of group statistics

08 minutes14 seconds

Basic introduction to multi-table query Cartesian set

23 minutes12 seconds

Practice and analysis of ideas for completing multi-table queries

20 minutes49 seconds

self-connection

13 minutes09 seconds

Subquery (single-row subquery and multi-row subquery)

09 minutes51 seconds

Subquery (multi-column subquery)

10 minutes15 seconds

from clause

17 minutes47 seconds

Homework Review Go to Repeat

19 minutes33 seconds

merge query union union all

mysql inner connection

06 minutes34 seconds

Outer joins and jobs

28 minutes15 seconds

primary key constraints

27 minutes51 seconds

Description of unique

13 minutes32 seconds

foreign key constraints

42 minutes20 seconds

check constraints

03 minutes29 seconds

Comprehensive exercise in creating tables

20 minutes01 seconds

Maintenance of table constraints (add, delete, modify, check)

10 minutes23 seconds

Maintenance of table constraints (add, delete, modify, check)

11 minutes01 seconds
Chapter14Day 27

Yesterday review

17 minutes28 seconds

Self Growth

18 minutes34 seconds

The principle of indexing

39 minutes02 seconds

indexed category

02 minutes56 seconds

Primary key index and unique index

29 minutes21 seconds

General index and full-text index

25 minutes02 seconds

Index attention

19 minutes44 seconds

Introduction to business

39 minutes22 seconds

Implement transactions in php program

13 minutes19 seconds

Transaction isolation level(1)

38 minutes00 seconds

Transaction isolation level(2)

08 minutes30 seconds

storage engine

25 minutes56 seconds

view

36 minutes49 seconds

User Management

54 minutes44 seconds
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