complete course to learn the php language

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PHP course

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Contents
1 Introduction................................................ .................................................. ..................................... 7
1.1 Definition........ .................................................. .................................................. .....................7
1.2 History............................... .................................................. .................................................. .....7
1.3 Practical use .................................................. .................................................. .........................
7 1.4 Static pages vs dynamic pages ............................... .................................................. ..................
8 1.5 CGI Scripts............................... .................................................. .................................................. ..
8 1.6 Dynamic pages and PHP............................................... .................................................. ..............8
1.7 Why prefer PHP to other languages such as ASP?........................................... ..................8 1.8
What you should already know ............................... .................................................. ..................9
1.9 The necessary server.......................... .................................................. .....................................
9 1.10 The customer kit........ .................................................. .................................................. ......
9 1.11 Compliance with standards .................................. .................................................. ...................9
2 Basics:Presentation.......................... .................................................. ..............................................11
2.0.1 Basic syntax.................................................. .................................................. ............... 11
2.1 Integrating with HTML............................... .................................................. ..................................11
2.2 Instruction separator......... .................................................. ..................................................12
2.3 Instruction block................................................ .................................................. ..................12
2.4 Comments........................... .................................................. ............................................ 12 3
Working with variables................................................ .................................................. ........ 13 3.1
Declaring a variable .................................. .................................................. ........................... 13 3.2
Scope of variables .............. .................................................. ........................................... 13 3.3
Predefined variables.... ..................................... .................................................. .................. 14 3.4
Dynamic variables .................................. .................................................. ..................................15
3.5 Types of variables .................. .................................................. .................................................. .....15
3.5.1 Booleans.................................... .................................................. ................................. 15
3.5.2 Integers............ .................................................. .................................................. ..............
15 3.5.3 Floating point .............................. .................................................. ...............................
16 3.5.4 Character strings .............. .................................................. ........................................ 16
3.5.5 Tables... .................................................. ..................... ........................................... 17 3.5.6
The object variable .................................................. .................................................. ...........18
3.6 Constants.................................... .................................................. ..................................... 18 3.7
Obtaining the type of a variable.... .................................................. ............................................ 19
3.8 Defining and deleting a variable................................................. ........................................... 19 4
Operators... .................................................. .................................................. ...........................20 4.1
The precedence of operators .................. .................................................. ............................... 20
4.2 Arithmetic operators ............................... .................................................. ........................... ..............
20 4.3 Assignment operators .................................. .................................................. .........................
20 4.4 Bitwise Operators............................... .................................................. ...........................................20
4.5 Comparison operators.............. .................................................. .................................................21
4.6 Error operator.................................................. .................................................. .................. 21
4.7 Execution operator............................... .................................................. .................................. 21
4.8 Increment/Decrement Operators .................. .................................................. ..................21 4.9
Logical operators............................... .................................................. .................................. 21 4.10
String Operators .................................................. .................................................. ........ 22 4.11
Array operator.................................... .................................................. ..................... 22 5 The notion
of expression .................. .................................................. ...........................................23 6 The
structures of control................................................. .................................................. ............. 25 6.1
if.................................. .................................................. .................................................. .........25 6.2
while...................................... .................................................. .................................................25


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6.2.1 classic while........................................... .................................................. .................. 25
6.2.2 do ... while....................... .................................................. ...............................................25
6.3 for .................................................. .................................................. ........................................26
6.4 foreach...... .................................................. .................................................. ...........................
26 6.5 break and continue.................... .................................................. ..................................................
27 6.6 switches............................................. .................................................. ..................................27
6.7 return......... .................................................. .................................................. ............. ..............28
6.8 require and include (_once)............................ .................................................. ...........................
28 7 The functions.................. .................................................. .................................................. ..............29
7.1 Syntax and scope.................................. .................................................. ...................................29
7.2 Arguments............. .................................................. .................................................. ..................29
7.3 Return value .................................. .................................................. ........................................ 30
7.4 Internal functions............... .................................................. .................................................. ..............30
8 Managing forms in PHP.................................... .................................................. .......... .........31 8.1
GET and POST.................................... .................................................. .....................................31
8.2 Recovery by table......... .................................................. ..................................................31 8.3
Direct recovery ................................................ .................................................. .............. 32 8.4
Using tables ............................... .................................................. ..................................32 9 Date
and time .................. .................................................. .................................................. ...................34
9.1 Location.................................. .................................................. ..................................................34
9.2 Retrieving the date and time ............................................ .................................................. .........
34 9.2.1 date()........................................... .................................................. ...................................
34 9.2.2 strftime() local date...... .................................................. ............................................ 35
9.2 .3 Return by array getdate().............................................. .................................................. 36
9.2.4 The localtime() time .......................................... .................................................. ..................
37 9.3 Retrieve any date .................................. .................................................. .....................37 10
MySQL.......................... .................................................. .................................................. .............. 38
10.1 Presentation............................... .................................................. ..................................38 10.2
Tools........ .... .................................................. .................................................. ..............38 10.2.1
PhpMyAdmin....................... .................................................. ........................................38 10.2.2
MysqlCC..... .................................................. .................................................. ............... 39 10.3
Creating a database............................... .................................................. ...........................................39
10.4 Users and rights..... .................................................. .................................................. ......39
10.5 Creating and modifying tables.................................... .................................................. ..............
40 10.5.1 Numeric Types............................... .................................................. ..................40
10.5.1.1 Integer types .................. ........... .................................................. ...........................40
10.5.1.2 Real (floating point) types............... .................................................. ............................
40 10.5.1.3 Boolean types............... .................................................. .....................................
40 10.5.2 Character types....... .................................................. .................................................. ..
40 10.5.2.1 CHAR-types.......................................... .................................................. ..............
41 10.5.2.2 TEXT-types.............................. .................................................. ...........................
41 10.5.2.3 Type ENUM................. .................................................. ........................................
41 10.5.2.4 Type SET.... .................................................. .................................................. ........42
10.5.3 Date types................................................ .................................................. .................. 42
10.5.3.1 Supported formats .................. .................................................. ...........................43
10.5.3.2 DATETIME type................... .................................................. ..............................43
10.5.3.3 DATE type............... .................................................. ............................................ 43
10.5.3.4 TIMESTAMP type .................................................. ..............................................43
10.5.3.5 TIME-Type 44 ..................................................
10.5.3.6 YEAR- .................................................. ........
Type............................................... .................................................. ................44 10.5.4
Creation: SQL Syntax............................... .................................................. ........................44

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10.5.5 Types of tables (MyISAM and InnoDB).......................................... ...................................
45 10.5.6 FULLTEXT Index......... .................................................. ...............................................46
10.5. 6.1 Creation................................................ .................................................. ..................
46 10.5.6.2 Search .................................. .................................................. ..................................
46 10.5.6.3 Boolean search .................. .................................................. ..................................47
10.6 MySQL and PHP............... .................................................. .................................................. .....
47 10.6.1 Connecting to a database............................................... ...............................................47
10.6. 1.1 Connecting to the server.............................................. ..................... ..................47
10.6.1.2 Choosing a base.......................... .................................................. ..................................48
10.6.1.3 Closing a connection..... .................................................. .............................. 48
10.6.1.4 Complete sequence for a base .............. .................................................. .............48
10.6.2 Queries ................................ .................................................. ..................................48
10.6.2.1 Executing a query.............. .................................................. .................................. 48
10.6.2.2 Number of lines affected............... .................................................. ...........................
49 10.6.2.3 Number of rows returned............... .................................................. ..................49
10.6.2.4 Retrieving the results........................... ................................... ..............................49
10.6.2.5 Insertion with auto-increment .............. .................................................. ...................
50 10.6.3 Error recovery .................................. .................................................. ...................... 50
11 The file system ................................. .................................................. ............................................51
11.1 Working with files .................................................. .................................................. ...........51
11.1.1 Opening............................... .................................................. ..................................51
11.1.2 Playback............ .................................................. .................................................. ............51
11.1.2.1 fgets().............................. .................................................. .....................................51
11.1.2.2 frea d();................................................ .................................................. ....................
51 11.1.2.3 fscanf()....................... .................................................. ...........................................52
11.1.2.4 fgetc() .................................................. .................................................. .................
52 11.1.2.5 fgetss().......................... .................................................. ........................................
52 11.1.2.6 fgetcsv()... .................................................. .................................................. ...........52
11.1.2.7 Returning a file to standard output .................................. ..................................52
11.1.3 Writing........... .................................................. .................................................. .............53
11.1.4 Movement.................................. ....................... .................................................. .........53
11.1.4.1 fseek().................................. .................................................. .................................53
11.1.4.2 ftell().......... .................................................. .................................................. .........53
11.1.4.3 rewind().................................. .................................................. .............................. 53
11.1.5 End of file .............. .................................................. .................................................. 53
11.1.6 Closing ............................................... .................................................. ...........................
54 11.2 Working with directories .................. .................................................. ..................................54
11.2.1 Current directory.............. .................................................. ............................. ...................
54 11.2.2 Moving ........................... .................................................. ........................................ 54
11.2.3 Open, list, close .................................................. .................................................. .. 54
11.2.4 Retrieve all entries .................................................. .................................................. 54
11.3 Working on the file system ............................................... .................................................. 55
11.3.1 File information .................................................. .................................................. ..55
11.3.2 Actions on files and directories............................................... .................................. 56
11.4 Uploading files............... .................................................. .................................................. ..57
12 Work on chains.................... .................................................. .................................................. .59
12.1 Functions for HTML and MySQL code............................................... ........................................59
12.1.1 Management of locked characters.. .................................................. ..............................59
12.1.2 HTML tags and special characters...................... .................................................. ..................59
12.2 General text functions .................................. .................................................. ...........................60
12.2.1 Cutting a chain................... .................................................. ................................. 60

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