PHP reference book

PHP

2012

PHP.

PHP. , Creative Commons Attribution-NonCommercial-ShareAlike ( ) 3.0 .

4

5 PHP

19

22

26 JavaScript

30 MySQL

40 CSS

44 JQuery

47 HTML

51

PHP.

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, . 9 : PHP, -, , JavaScript, MySQL, CSS, JQuery, HTML .

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e-mail: jeffjoellennox@mail.ruSkype: AndriiShevchenko

PHP.

1. PHP1. sort(), asort() ksort()?

1) sort() . . .

2) asort() , -- . , , .

:

$capitals = array(US => Washington, UK => London, Austria => Vienna);asort($capitals);

// $capitals = {UK => London, Austria => Vienna, US => Washington}

3) ksort() . :

ksort($capitals);

// $capitals = {Austria => Vienna, UK => London, US => Washington}

2. ?

, . .

:

$var = first;$$var = Second;

// $$var == $first == Second

$$var , $var. , :

$first = second;

$second = third;print $first; // second

print $$first; // third

3. PHP?

1. PHP header()

header(Location: .$url);

PHP.

2. JavaScript

echo ; echo window.location.href=.$url.;; echo ;

4. PHP.

E_ERROR. , - .

E_WARNING. , -.

E_PARSE. , .

E_USER_WARNING. , . - trigger_error().

E_COMPILE_WARNING. Zend. -.

, PHP5 E_STRICT, - PHP.

5. PHP?

, - . , , , :

:

static final

.

Zend Engine 2.

6. ?

, . , $str , - , - .

PHP.

7. PHP?

PHP , , . - . , PHP .

8. ?

PHP 8 .

4 :

boolean. , true false.

integer. , (...-2, -1, 0, 1, 2...) -2^31 +2^31. - float.

float. , , .

string. . . PHP , .

2 () :

array. , .

object. , ( ).

2 :

resource. , .. . - .

NULL. , - . . - .

9. static ( static)?

Static , . , , .. .

. , , - ( ). , $this

PHP.

, .

->.

10. self this php?

self , this .

11. ?

PHP ( 5) __construct(), - new . , , . - , , new, - .

12. .

13. ?> ?

14. ?

, PHP-, ?> . PHP - .

15. ?

, PHP . . __call() -.

16. require(), require_once(), include() include_once()?

require() , require_once() , ( ).

PHP.

, require_once() , - . , .

require() include() : require() FATAL ERROR, , include() WARNING.

include_once() , include(), , require() require_once().

17. echo print PHP?

-, echo , print - . -, print 1, -.

18. eval() ?

eval() PHP-.

19. while do while?

do-while , - .

20. ? array(h, e, l, l, o), - array(o, l, l, e, h)?

PHP array_reverse().

21. ?

, :

22. ?

strrev(), , :

for ($i = strlen($str); $i>=0; $i--) $rev[] = $str[$i];$revstr = implode (, $rev);echo $revstr;?>

, :

:

23. ?

, ( ) ( ), , A B, B A. .

24. , .

PHP.

10

25. ?

26. PHP JavaScript. 123 + abc. ? 123 + abc?

JavaScript + , .. . PHP 123. PHP , , 10 + 20, , 30.

27. PHP?

, . Chimay, $beer.

28. . ?

: print_r.

:

29. count() sizeof()?

count() , sizeof() , . , - count() :

PHP.

11

, count() ;

, , 1;

, 0.

30. ?

, , . - . :

$people[] = ;$people[] = ;

$people[] = ;

31. :

:

input . upload.php, :

32. HTML-, text textarea. HTML- -- script1.php, data.txt . data.txt :

text1text2

text3

text4

text1 text3 text, text2 text4 textarea. , script1.php ,

PHP.

12

index.html.

:

Go : :

:

33. switch, boo, . 2, , 3 , --.

PHP.

13

34. $arr = array(3,8,15,25,16,11,10,5,7,30). - , 5.

35. , , .. 1.

P.S. ($k) true/false, , .

36. 3 0 10. 14, .

PHP.

14

37. .

2 -. : () , ( ).

38. $a?

$a = 1; $a[$a] = 2; echo $a;1239. a = array( ). for (i=0; i=0; i--).

40. array(1,2,3,4,10,100,3,4987,6,7,8,9).

max():

$arr = array(1,2,3,4,10,100,3,4987,6,7,8,9);echo max($arr);

:

41. -, - fuck, idiot bitch f**k, id**t bi**h.

$user_input = $_POST[user_input];$user_input_new = str_ireplace($find, $replace, $user_input);echo $user_input_new;}?>

42. ? ?

php, __.

:

__construct__destruct__call__callStatic__get__set__isset__unset__sleep__wakeup__toString__set_state__clone

__construct __destruct , -- : ;

__call, __callStatic, __get __set , , . __get() __set() , __call() __callStatic . , , ;

__isset , empty() isset() ;

__unset unset() - ;

PHP.

16

__sleep __wakeup , serialize unserialize -. __sleep serialize, __wakeup unserialize. (, );

__toString , (, print echo);

__set_state , , - var_export();

__clone ( - , - php5 );

__invoke .

43. , .

, :

:

echo .explode .htmlentities HTML .htmlspecialchars HTML .implode .ltrim .rtrim .trim .md5 MD5 .str_repeat .str_replace .str_split .strlen .strrev .

:

array_flip , _ , _ .shuffle ksort array_unique array_unshift array_sum array_shift array_reverse array_pop

PHP.

17

array_push array_keys array_count_values

:

filesize filetype fopen URLfwrite - is_executable , if_file , is_readable , is_uploaded_file , HTTP POSTis_writable , mkdir move_uploaded_file pathinfo readfile rename unlink

44. MySQL ?

mysql_num_rows(). SELECT. , INSERT, UPDATE, DELETE, mysql_affected_rows().

:

$result = mysql_query(SELECT * FROM table1, $link);$num_rows = mysql_num_rows($result);

echo $num_rows Rows\n;

PHP.

18

2.

1. MVC?

Model-view-controller , , , - . - , - .

2. MVC?

MVC, , : , -, .

, -.

, .

, - . . , , .

3. () ?

, - . , -. - .

4. ?

1.

Abstract Factory ( ). , .

Factory Method ( ). - . .

PHP.

19

Singleton (). -, . , MVC, () .

Prototype (). - , . Prototype , , .

Builder (). - , - .

2.

Adapter (). . , .

Bridge (). , .

Composite (). . . , - , - , . SimpleXML jQuery.

Decorator (). -. .

Facade (). , - . . - , . , . .

Flyweight (). .

Proxy (). , , - ( ).

3.

Chain of Responsibility ( ). .

Command (). .

PHP.

20

Interpreter (). .

Iterator (). , - , - .

Mediator (). , .

Memento (). , .

Observer (). - , .

State (). , .

Strategy (). , . - . Strategy - -, .

Template Method ( ). - , .

Visitor (). , -. Visitor .

5. PHP Singleton.

3.

1. ? ?

- , . - (, JavaScript) -.

2. .1) . , , - , . , . .. - . ( ) . , - , .2) . , , , .3) . , . , , . , .

3.