PHP identifier
21 minutes12 secondsPHP split command symbol - semicolon
07 minutes14 secondsPHP program notes
10 minutes51 secondsPHP hybrid method
04 minutes32 secondsIntroduction and declaration of variables
12 minutes39 secondsmutable variable
06 minutes39 secondsHow to pass values to variables
14 minutes47 secondsvariable scope
23 minutes49 seconds5 commonly used functions for variables
17 minutes58 secondsPredefined variables-GLOBALS-SEVER-FILES
32 minutes17 secondsPredefined variables-REQUEST
18 minutes28 secondsconstant
20 minutes05 secondsmagic constant
18 minutes01 secondsYesterday review
35 minutes46 secondsData type-string
25 minutes54 secondsData type-common string functions
38 minutes51 secondsData type-int
Data type-float
Data type-boolean
Data type-object
datatype-null-resource
09 minutes20 secondsData types - several types provided by the manual
04 minutes26 secondsData type-conversion
11 minutes10 secondsOperator - arithmetic operator
12 minutes35 secondsOperator - assignment operator
03 minutes27 secondsOperator - comparison operator
09 minutes39 secondsOperator - Error Suppression Operator
05 minutes14 secondsOperators - Increment and Decrement Operators
11 minutes51 secondsOperator - logical operator
15 minutes02 secondsOperators - string operators
07 minutes51 secondsBit operators--binary
35 minutes02 secondsBit operators--original code, one's complement, one's complement
11 minutes02 secondsBit operators--use bit operations
17 minutes59 secondsArray operators
08 minutes14 secondsProcess control--if and ifelse
16 minutes45 secondsProcess control--elseif and switch
Process control--while loop
16 minutes35 secondsProcess control--dowhile loop
Process control--for loop
Case - One hundred dollars buys one hundred ducks
07 minutes14 secondsProcess Control--Cycle Case
12 minutes00 secondsProcess control --break
10 minutes19 secondsThe difference between process control--continue-- and break
07 minutes41 secondsProcess control--goto statement
04 minutes48 secondsProcess control--return statement
08 minutes07 secondsProcess control--file loading
19 minutes10 secondsYesterday review
22 minutes21 secondsIntroduction to functions
36 minutes00 secondsFunction calling mechanism
20 minutes11 secondsfunction encapsulation
19 minutes32 secondsvariadic function
08 minutes13 secondsCallback
06 minutes52 secondsanonymous function
14 minutes54 secondsinternal function
05 minutes32 secondsrecursive call
22 minutes58 secondsWebsite layout
49 minutes08 secondsMethods of learning technology Quick start with object-oriented
40 minutes15 secondsIntroduction to object-oriented
20 minutes42 secondsmember properties
50 minutes58 secondsHow objects are passed
30 minutes43 secondsmember method
28 minutes48 secondsMember methods(2)
05 minutes37 secondsMember methods(3)
10 minutes04 secondsBasic usage of constructor (1)
19 minutes50 secondsConstructor (2) details
15 minutes39 secondsdefault constructor
09 minutes04 secondsConstructor summary and this
30 minutes32 secondsBasic introduction to destructor and PHP program execution process
24 minutes57 secondsDetailed explanation and best practices of destructor
47 minutes10 secondsGarbage collection mechanism (understand)
07 minutes48 secondsYesterday review
19 minutes13 secondsA basic introduction to access modifiers
22 minutes21 seconds__get and assignment evaluation
38 minutes14 seconds__set
11 minutes13 secondsAdditional information
45 minutes30 secondstoString and added knowledge points
16 minutes27 secondsComparison of __clone and objects
22 minutes56 seconds__call magic method
38 minutes17 secondsAutomatic loading of classes
38 minutes48 secondsstatic properties
49 minutes30 secondsYesterday review
20 minutes24 secondsHomework comments
28 minutes42 secondsBasic introduction and detailed discussion of static methods
28 minutes43 secondsBest Practices for Static Methods - Singleton Pattern (1)
36 minutes44 secondsBest Practices for Static Methods - Singleton Pattern (2)
29 minutes22 secondsabstract
28 minutes27 secondsIntroduction to packaging
21 minutes15 secondsHow to operate properties (protected and private) in three ways
53 minutes54 secondsOverload 1
23 minutes17 secondsOverloading static methods
12 minutes55 secondsClassroom practice review of overloaded methods
11 minutes25 secondsOverloading of properties
12 minutes30 secondsA basic introduction to method rewriting
08 minutes30 secondsDetails of method overriding
20 minutes34 secondsDetails of method overriding
11 minutes38 secondsProperty override
06 minutes25 secondsPolymorphism
28 minutes20 secondsPractice questions
12 minutes15 secondsPractice questions
04 minutes30 secondsIntroduction to abstract classes
22 minutes30 secondsDetails of abstract classes
16 minutes49 secondsInterface explanation
43 minutes58 secondsInterface explanation 2
10 minutes41 secondsYesterday review
20 minutes24 secondsBasic introduction to the interface
36 minutes17 secondsDiscussion of interface details
21 minutes12 secondsComparison of interfaces and inheritance
19 minutes17 secondsfinal
21 minutes54 secondsclass constant
30 minutes43 secondsObject traversal
21 minutes10 secondsBuilt-in standard classes
06 minutes53 secondsConvert data types and objects to each other
15 minutes30 secondsBasic introduction to serialization and deserialization
26 minutes52 secondsSerialization and deserialization details
20 minutes56 secondsDescription of related functions of classes and objects
13 minutes28 secondstraits
21 minutes23 secondsfirst contact of reflex mechanism
19 minutes33 secondsReflection proxy call
24 minutes57 secondscomprehensive reflex exercises
27 minutes54 secondsYesterday review
32 minutes14 secondsBasic introduction to mysql database (1)
21 minutes41 secondsBasic introduction to mysql database (2)-installing mysql
24 minutes50 secondsBasic introduction to mysql database (3)-Basic use of mysql
29 minutes21 secondsBasic introduction to mysql database (4)-three-tier structure
17 minutes03 secondsBasic introduction to mysql database (5)-sql statement classification
10 minutes07 secondsBasic introduction to creating a database
12 minutes54 secondsCharacter set and validation rules
25 minutes41 secondsCommon database operations
24 minutes18 secondsDatabase modification, backup and recovery
39 minutes20 secondsCreate table
29 minutes08 secondsinteger
36 minutes41 secondszerofill
13 minutes06 secondsbit
11 minutes33 secondsfloat and decimal
30 minutes16 secondsYesterday review
13 minutes39 secondsString type(1)
41 minutes50 secondsString type(2)
16 minutes57 secondsdate type
13 minutes20 secondsenum and set
30 minutes12 secondsSmall exercises and tips for aligning data
17 minutes12 secondsModify table
20 minutes00 secondsProgram framework diagram of insert statement and comprehensive case
01 Hours08 minutes51 secondsComprehensive case curd
51 minutes19 secondsBasic usage of select statement
55 minutes04 secondsBasic use of select statement (2)
22 minutes59 secondsYesterday review
22 minutes41 secondsAggregation function count
15 minutes36 secondsAggregation function sum
26 minutes46 secondsaggregate function avg
07 minutes29 secondsAggregation function max min
06 minutes06 secondsAggregation function group by
35 minutes24 secondsmysql date function (1)
29 minutes07 secondsDate function(3)
54 minutes17 secondsString functions
19 minutes32 secondsMath functions
18 minutes30 secondsbranch control function
20 minutes21 secondsOther functions
16 minutes55 secondsEnhancement of select statement (1)-enhancement of where clause
21 minutes01 secondsEnhancement of select statement (2)-enhancement of order by clause
10 minutes40 secondsEnhancement of select statement (3) - paging query
20 minutes35 secondsYesterday review
11 minutes05 secondsAggregation function enhancement
11 minutes07 secondsgroup by having strengthened
03 minutes48 secondsComments on homework
16 minutes40 secondsSummary of group statistics
08 minutes14 secondsBasic introduction to multi-table query Cartesian set
23 minutes12 secondsPractice and analysis of ideas for completing multi-table queries
20 minutes49 secondsself-connection
13 minutes09 secondsSubquery (single-row subquery and multi-row subquery)
09 minutes51 secondsSubquery (multi-column subquery)
10 minutes15 secondsfrom clause
17 minutes47 secondsHomework Review Go to Repeat
19 minutes33 secondsmerge query union union all
mysql inner connection
06 minutes34 secondsOuter joins and jobs
28 minutes15 secondsprimary key constraints
27 minutes51 secondsDescription of unique
13 minutes32 secondsforeign key constraints
42 minutes20 secondscheck constraints
03 minutes29 secondsComprehensive exercise in creating tables
20 minutes01 secondsMaintenance of table constraints (add, delete, modify, check)
10 minutes23 secondsMaintenance of table constraints (add, delete, modify, check)
11 minutes01 secondsYesterday review
17 minutes28 secondsSelf Growth
18 minutes34 secondsThe principle of indexing
39 minutes02 secondsindexed category
02 minutes56 secondsPrimary key index and unique index
29 minutes21 secondsGeneral index and full-text index
25 minutes02 secondsIndex attention
19 minutes44 secondsIntroduction to business
39 minutes22 secondsImplement transactions in php program
13 minutes19 secondsTransaction isolation level(1)
38 minutes00 secondsTransaction isolation level(2)
08 minutes30 secondsstorage engine
25 minutes56 secondsview
36 minutes49 secondsUser Management
54 minutes44 seconds