лабыWEB-проект2013

WEB-

2013

WEB-

8.05150102-

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2013

WEB-" 8.05150102- / . .. : , 2013. - 76 .

: ..

..4 1 HTTP. ..5 1.1 .5 1.2 5 1.3 ..7 1.4 ..10 1.5 10 2 .11 2.1 ...11 2.2 ..11 2.3 13 2.4 ..18 2.5 18 3 cookies..19 3.1 ...19 3.2 ..19 3.3 20 3.4 ..26 3.5 26 4 . PHP..27 4.1 ...27 4.2 ..27 4.3 41 4.4 ..46 4.5 46 5 PHP MySQL..47 5.1 ...47 5.2 ..47 5.3 50 5.4 ..61 5.5 61 6 ...62 6.1 ...62 6.2 ..62 6.3 68 6.4 ..74 6.5 74

WEB- " 8.05150102- . WEB- PHP INTERNET. WEB- " , PHP, INTERNET . WEB-" :

- HTTP; - PHP; - ; - ; - HTTP PHP; - cookies; - ; - PHP MySQL; - , .

PHP, INTERNET.

1 HTTP. PHP

1.1 HTTP -

PHP. .

1.2 HTTP - ,

' . Hyper Text Transfer Protocol, - . INTERNET. HTTP , - - . HTTP - () .

HTTP , FTP SMTP. -.

() : 1. ; 2. ; 3. , ,

, . ' .

HTTP1.1 ' Host: ( , IP-).

, http://my_site.ua/my_page.php ( URL, ), HTTP :

GET /my_page.php HTTP/1.1 Host: my_site.ua User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US;

rv:1.9.0.4) Gecko/2008102920 AdCentriaIM/1.7 Firefox/3.0.4 Accept-Language: en-us,en;q=0.5 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 300 Connection: keep-alive , , :

URI HTTP/ . ' Host ,

. '. - _: . HTTP .

: HTTP/1.1 200 OK Cache-Control: private, max-age=0 Date: Sun, 23 Nov 2008 10:34:39 GMT Expires: -1 Content-Type: text/html; charset=UTF-8 Server: nginx/0.6.31 Content-Length: 62 : HTTP/ :

200 OK ; 403 Forbidden ; 404 Not Found .

, , HTML

. GET

POST. GET URI. , 2 name age GET, HTTP :

GET /my_page.php?name=Vasya&age=20 HTTP/1.1 Host: my_site.ua User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US;

rv:1.9.0.4) Gecko/2008102920 AdCentriaIM/1.7 Firefox/3.0.4 Accept-Language: en-us,en;q=0.5 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7

Keep-Alive: 300 Connection: keep-alive POST .

POST, : POST /my_page.php HTTP/1.1 Host: my_site.ua User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US;

rv:1.9.0.4) Gecko/2008102920 AdCentriaIM/1.7 Firefox/3.0.4 Accept-Language: en-us,en;q=0.5 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 300 Connection: keep-alive name=Vasya&age=20

, PHP GET

$_GET, POST $_POST. HTTP PHP header().

: void header (string string [, bool replace [, int http_response_code]]) , Content-Type, text/html;

charset=UTF-8, header : header('Content-Type: text/html; charset=UTF-8'); HTTP

echo: echo 'Hello world!'; ,

. 1.3

1.3.1 GET GET -

. get.php.

- PHP. :

echo ''; echo ', ' . $_GET['first_name'] . ' ' .

$_GET['surname'] . ''; echo ''; ?> . : http://localhost//get.php?first_name=Vasya&surna

me=Pupkin GET : first_name,

Vasya surname, Pupkin. , HTML , ' . .

1.3.2 get.php ,

: http://localhost//get.php ,

, $_GET . , , . :

. first_name surname, , , , , ' . .

1.3.3 POST , POST,

HTML . HTML GET POST. method form.

post.php :

(' )

POST get.php. , ' . .

1.3.4 post.php ,

, first_name surname . (post.php) . , , , , ' .

1.4 1 (. ). 2 . 3 , , . 4 . 5 , ,

. 1.5 1 GET POST

HTTP? 2 ? 3 PHP ? 4 PHP HTTP ?

2 2.1

, PHP. 2.2 PHP -

. :

strstr(): string strstr ( string $haystack , mixed $needle [, bool $before_needle ] ) $haystack $needle FALSE, . : $string = strstr('- ', ''); $string

strlen(): int strlen ( string $string ) . : $strlen = strlen(''); $strlen 13

substr(): string substr ( string $string , int $start [, int $length ] ) $string $start ' $length. $start . : substr('abcdef', 1); // bcdef substr('abcdef', 1, 3); // bcd substr('abcdef', 0, 4); // abcd substr('abcdef', 0, 8); // abcdef substr('abcdef', -1, 1); // f

str_replace(): mixed str_replace ( mixed $search , mixed $replace , mixed $subject [, int &$count ] )

$search $replace $subject . : $string = str_replace('', '', ' , ''); $string , '

: strtoupper($string)

. strtolower($string)

. ucfirst($string)

. ucwords($string)

. trim ( string $str [, string $charlist ] )

, ( ' $charlist) .

, ' implode():

string implode ( string $glue , array $pieces ) $pieces , ', $glue

, ' . explode(): array explode ( string $delimiter , string $string [, int $limit ] ) $string , , $delimiter

$string.

, , . . .

PHP POSIX Perl- , Perl- , .

:

preg_match int preg_match ( string $pattern , string $subject [, array &$matches [, int $flags [, int $offset ]]] ) $subject $pattern, 1, , 0 .

preg_replace mixed preg_replace ( mixed $pattern , mixed $replacement , mixed $subject [, int $limit [, int &$count ]] ) $subject $pattern $replacement.

2.3

. 2.3.1 , book_form.php.

:

} echo ''; echo ': '; echo ' \' : '; echo ' : '; echo ' : '; echo ''; echo ''; echo ''; ?>

, . , .

2.3.2 implode explode . ,

. , . explode , , ' implode . :

echo ''; echo '

'; echo ''; echo ' :'; foreach($parameters as $key => $param_current) { echo $key . ': '. $param_current . ''; } echo ''; echo ': '; echo ' \' : '; echo ' : '; echo ' : '; echo ' : '; echo ''; echo ''; echo ''; ?> , ,

. 2.3.3

: .

strtoupper , ,

, . ucwords

..

, 4

:

$parameters = array(); if (isset($_POST['name']) && !empty($_POST['name'])) {

parameters['name'] = strtoupper(parameters['name']); } else { parameters['name'] = ''; } if (isset($_POST['author']) && !empty($_POST['author'])) {

parameters['author'] = ucwords(parameters['author']); } else { parameters['author'] = ''; } if (isset($_POST['date']) && !empty($_POST['date'])) { if (preg_match('/^[0-3]\d\.[01]\d\.\d{4}$/', $_POST['date']) { parameters['date'] = $_POST['date']; }

else { parameters['date'] = ' '; }

} else { parameters['date'] = ''; } if (isset($_POST['year']) && !empty($_POST['year'])) { if (strlen(parameters['year']) 0) { $parameters['keywords'] = $array_temp[0];

} else { $parameters['keywords'] = '

'; }

} else { $parameters['keywords'] = ''; } echo ''; echo '

'; echo ''; echo ' :'; foreach($parameters as $key => $param_current) { echo $key . ': '. $param_current . ''; } echo ''; echo ': '; echo ' \' : '; echo ' : '; echo ' : '; echo ' : '; echo ''; echo ''; echo ''; ?> ,

. . 2.3.4 , :

,

,

2.4 1 (. ). 2 . 3 , , . 4 . 5 , , .

2.5 1 PHP ? 2 implode explode? 3 ? ?

3 COOKIES

3.1 PHP.

cookies. 3.2 , HTTP

. -. , HTTP, ' . , , . IP- . , ' .

PHP , ' . , - ( ) . () , . , . cookies.

Cookies , -, - , . . Cookies - javascript , . cookies .

cookie PHP :

bool setcookie ( string $name [, string $value [, int $expire [, string $path [, string $domain [, bool $secure [, bool $httponly ]]]]]] )

$name ' , $value , $expire cookie ( 1970

). PHP time() ,

cookie . 0, cookie ,

$path , cookie. , cookie http://localhost//, $path '//'.

, php.net.

cookie HTTP , setcookie HTTP (echo, print() ).

cookie, $_COOKIE.

PHP session_start(). , . , , , . $_SESSION, .

, , , cookies, , session_destroy().

3.3

3.3.1 cookies , cookies

. cookies .

, cookies_counter.php. :

else { $message = ' '; setcookie('counter', 1, time()+60*60*24, '/'); } echo ''; echo ''; echo ''; echo ' cookies'; echo ''; echo ''; echo $message; echo ''; ?> .

. 3.3.2 cookies ,

cookie. cookie setcookie, $expire .

echo ''; echo ''; echo ''; echo ' cookies'; echo ''; echo ''; echo $message; echo ''; echo ''; ?> ,

cookie. . , . .

3.3.3 , ' '

. , first_session_1.php. :

echo ' \' '.$_SESSION['name'].' '.$_SESSION['age'].' ';

} else { echo ' \' ';

echo ''; echo '\': '; echo ': '; echo ''; echo '';

} echo ' '; echo ''; ?> ,

first_session_2.php. :

, .

, ( , ).

first_session_1.php :

echo '\': '; echo ': '; echo ''; echo '';

} echo ' '; echo ''; ?> first_session_2.php : ,

. .

3.3.4 first_session_1.php first_session_2.php

: , , . cookies.

3.4 1 (. ). 2 . 3 , , . 4 . 5 , , . 3.5

1 HTTP PHP? 2 cookies? 3 ?

4 . PHP

4.1

,

PHP. 4.2

PHP -

. : - - - - - - 4.2.1 , PHP ,

. . , , , , '. , , , . fopen(). ? , fopen ' . ' , : , . :

resource fopen ( '_, _[, use_include_path])

. : ' , , ( , ) , , , , include_path. , , . .

'_ , ' URL- . '

(, http://... ftp://...), ' URL URL . , PHP , ' URL ( allow_url_fopen ). allow_url_fopen=off, fopen . ' , , ' . , , PHP .

use_include_path, 1 TRUE, fopen() include_path. , include_path PHP, , . fopen() include() require().

_ : r ;

. r+ ;

. w ;

. , .

w+ ; . , .

a ; . , .

a+ ; . , .

x ; . , fopen() false . , . PHP 4.3.2 .

x+ ; . , fopen() false . , . , PHP 4.3.2, .

, , , .

, - , ', fopen(), . fclose(). :

fclose ( ) TRUE, ' ,

FALSE . , , , fopen().

, ' ,

. . , ' , .

fwrite ,

fopen(), fwrite(). :

int fwrite ( , [, ]) ,

. , , , , .

fwrite() false, .

. my_file.html. :

, , my_file.html ' .. , , , .

: , my_file.html,

, $add_text,

4.2.2 readdir(): string readdir ([ resource $dir_handle ] ) ,

opendir(). readdir() . , , closedir($handle). :

. ,

fopen(), , . , . , , : file, readfile, file_get_contents, fread, fgets ..

fread .

, . fread() :

string fread ( , )

( ), , , . , ' , , , fopen(). , .

fread() .

, '. , , . PHP . filesize(' ). false. , .

. my_file.html

fgets fgets() .

, fread(), , , , ':

string fgets ( [, ]) fgets()

(1) , . , (1) . , PHP . , , ( ' PHP 4.2.0), 1 (1024 ) , , 1024 . PHP 4.3, , . fgets() false. PHP 4.3 .

, fread() fgets(),

, . PHP , , . feof(), ' .

, my_file.html:

fgetss fgets() fgetss().

, html-, , , , . fgetss() :

string fgetss( , [, ])

, '. . my_file.html : . my_file.html, , : : . . fgetc ,

, . fgetc(). , :

string fgetc ( ) ,

, , FALSE, .

, , :

echo $content,""; } fclose($h); ?> , ,

' fopen() '. PHP , , ' . readfile(), file() file_get_contents(). .

readfile : int readfile ( '_ [, use_include_path]) readfile() , '

'_, . use_include_path TRUE, ' , include_path.

() , FALSE. @ .

.

my_file1.html , . "Error in readfile".

readfile()

, URL- ' , .

. , - . file() file_get_contents().

file file()

. , readfile(), , :

array file ( '_ [, use_include_path]) ?

, ( ' '_). . file(), , false. use_include_path , include_path. , . PHP 4.3 .

, my_file.html : file(): : 0: 1: file_get_contents PHP 4.3 '

. file_get_contents(). , , , include_path. :

string file_get_contents ('_ [, use_include_path])

file(), . , , .

4.2.3 file_exists : bool file_exists (' ) file_exist() , , '

. , TRUE, FALSE. . , , clearstatcache(). file_exists() .

is_writable ,

, is_writable() is_writeable().

: bool is_writable (' ) TRUE, ( )

. , ( nobody www). is_writable .

is_readable ,

, is_readable().

: bool is_readable (' ) is_writable(). 4.2.4 mkdir : int mkdir(string pathname, int mode); , pathname. ,

mode , 0. true false .

: mkdir("/path/to/my/dir", 0700); 4.2.5 PHP,

unlink(). : bool unlink ( '_) , ' '_, TRUE

FALSE . , (, ).

rmdir(). .

: int rmdir(string dirname); 0. 4.2.6 , , ,

html-. , enctype form multipart/form-data, input file.

. : , ,

, , . , , . .

, .

$_FILES.

'- ' critics.htm 15136 , print_r($_FILES); :

Array ([myfile] => Array ( [name] => critics.htm [type] => text/html [tmp_name] => C:\WINDOWS\TEMP\php49F.tmp [error] => 0 [size] => 15136 ) ) $_FILES :

$_FILES['myfile']['name'] ', .

$_FILES['myfile']['type'] mime- , . text/html.

$_FILES['myfile']['size'] .

$_FILES['myfile']['tmp_name'] ' , .

$_FILES['myfile']['error'] , ' .

'myfile' ' ,

. , . (name, type ..) - .

PHP ' $_FILES['myfile']['error'] ' :

0 , 1 , , ,

upload_max_filesize php.ini 2 , , ,

MAX_FILE_SIZE html 3 4

, upload_tmp_dir php.ini. move_uploaded_file().

move_uploaded_file() : bool move_uploaded_file (_'_,

_). , ,

_'_, HTTP POST. , , _ ( , ' ).

_'_ , , move_uploaded_file()

FALSE. , . . , _, , move_uploaded_file() .

4.3

4.3.1 PHP PHP,

, .

-, . my_dir. - my_dir. , view_files.php. :

} else { echo " "; } echo ''; ?>

. my_dir. .

:

} } } break; default: break; } } if ($handle = opendir('my_dir')) { $files = array(); while (false !== ($file = readdir($handle))) { if ($file!='.' && $file!='..') { $files[$file] = (is_dir('my_dir/'.$file)) ? 'dir' : 'file'; } } closedir($handle); if (!empty($files)) { echo ''; foreach ($files as $file => $type) { echo ''.$type.': '.$file.' (x)'; } echo ''; } else { echo " "; } } else { echo " "; } echo ''; ?>

. .

. :

echo ' '.$_FILES['myfile']['name'].' '; } else { echo ' '; } } else { echo ' '; } } break; default: break; } } if ($handle = opendir('my_dir')) { $files = array(); while (false !== ($file = readdir($handle))) { if ($file!='.' && $file!='..') { $files[$file] = (is_dir('my_dir/'.$file)) ? 'dir' : 'file'; } } closedir($handle); if (!empty($files)) { echo ''; foreach ($files as $file => $type) { echo ''.$type.': '.$file.' (x)'; } echo ''; } else { echo " "; }

echo ' : '; } else { echo " "; } echo ''; ?>

, . .

4.3.2 ,

. 4.4 1 (. ). 2 . 3 , , . 4 . 5 , , . 4.5

1 PHP? 2 ? 3 ?

5 PHP MYSQL

5.1 MySQL,

, . 5.2

PHP ,

MySQL. web- html- , . .

, , , - ' . mysql_connect.

mysql_connect mysql_connect ( [ server [, username [, password [, new_link [, client_flags]]]]]) ' MySQL

' FALSE . :

server = 'localhost:3306' username = ' password = ,

' , '. , new_link, - '.

client_flags - : MYSQL_CLIENT_COMPRESS ( ), MYSQL_CLIENT_IGNORE_SPACE ( ), MYSQL_CLIENT_INTERACTIVE ( interactive_timeout - wait_timeout - ').

' , mysql_close().

, ' nina "123":

, . mysql_query() FALSE, .

, mysql_query()

PHP, mysql_result() mysql_fetch_array().

mysql_result mysql_result ( result, row [, field]) mysql_result() .

field , ' ' ' tablename.fieldname. ('select foo as bar from...'), .

, , (, mysql_fetch_row(), mysql_fetch_array() ..). , mysql_result(). , , ( ) , .

mysql_result() , .

mysql_fetch_array mysql_fetch_array ( result [, result_type]) ,

(, ) , FALSE, .

mysql_fetch_array() - mysql_fetch_row(). , .

, . , . , , , "photo" .

select Artifacts.photo as art_image, Persons.photo as pers_image from Artifacts, Persons

, mysql_fetch_array() , mysql_fetch_row(), .

result_type mysql_fetch_array() : MYSQL_ASSOC, MYSQL_NUM MYSQL_BOTH. PHP 3.0.7. : MYSQL_BOTH.

MYSQL_BOTH, , , . MYSQL_ASSOC , MYSQL_NUM - .

: , , .

5.3

-

. : , .

5.3.1 phpMyAdmin .

http://localhost/Tools/phpMyAdmin. MySQL, ( ). ( ). Create new database Create.

. SQL SQL :

CREATE TABLE authors(

id int PRIMARY KEY AUTO_INCREMENT, name varchar(255)

); CREATE TABLE books(

id int PRIMARY KEY AUTO_INCREMENT, name varchar(255), year year(4), author_id int

); Go. ,

: authors books.

5.3.2 ,

(, , ) . -, library.php ( $database ):

$books[$row['id']] = array( 'name' => $row['name'], 'year' => $row['year'], 'author_id' => $row['author_id'], 'author_name' => $row['author_name'] ); } } else { $books = false; } echo ''; if ($authors) { echo ''; echo 'id\''; foreach ($authors as $id => $name) { echo ''.$id.''.$name.''; } echo ''; } else { echo ' '; } echo ''; if ($books) { echo ''; echo 'id '; foreach ($books as $id => $info) { echo ''.$id.''.$info['name'].''.$info['year'].''.$info['author_name'].''; } echo ''; } else { echo ' '; } echo ''; ?>

, , , . . :

$name = mysql_escape_string($_POST['name']); $year = mysql_escape_string($_POST['year']); $author = mysql_escape_string($_POST['author']); if (!mysql_query('INSERT INTO books VALUES(NULL, "'.$name.'", "'.$year.'", '.$author.')')) { echo ' '; } } else { echo ' '; } break; default: break; } } // $result_resource = mysql_query('SELECT id, name FROM authors'); if (mysql_num_rows($result_resource) > 0) { while ($row = mysql_fetch_array($result_resource)) { $authors[$row['id']] = stripslashes($row['name']); } } else { $authors = false; } // $result_resource = mysql_query( 'SELECT books.id, books.name, books.year, books.author_id, authors.name AS author_name FROM books INNER JOIN authors ON books.author_id=authors.id'); if (mysql_num_rows($result_resource) > 0) { while ($row = mysql_fetch_array($result_resource)) { $books[$row['id']] = array( 'name' => stripslashes($row['name']), 'year' => $row['year'], 'author_id' => $row['author_id'], 'author_name' => stripslashes($row['author_name']) );

} } else { $books = false; } echo ''; if ($authors) { echo ''; echo 'id\''; foreach ($authors as $id => $name) { echo ''.$id.''.$name.''; } echo ''; } else { echo ' '; } echo ' '; echo ''; echo '\': '; echo ' '; echo ''; echo ''; echo ''; if ($books) { echo ''; echo 'id '; foreach ($books as $id => $info) { echo ''.$id.''.$info['name'].''.$info['year'].''.$info['author_name'].''; } echo ''; } else { echo ' '; } if ($authors) { echo ' '; echo '';

echo ': '; echo ' : '; echo ': '; foreach ($authors as $id => $name) { echo ''.$name.''; } echo ''; echo ''; echo ''; echo ''; } echo ''; ?>

. .

. :

$name = mysql_escape_string($_POST['name']); if (!mysql_query('INSERT INTO authors VALUES(NULL,"'.$name.'")')) { echo ' '; } } else { echo ' '; } break; case 'add_book': if (isset($_POST['name']) && !empty($_POST['name']) && isset($_POST['year']) && !empty($_POST['year']) && isset($_POST['author']) && !empty($_POST['author'])) { $name = mysql_escape_string($_POST['name']); $year = mysql_escape_string($_POST['year']); $author = mysql_escape_string($_POST['author']); if (!mysql_query('INSERT INTO books VALUES(NULL, "'.$name.'", "'.$year.'", '.$author.')')) { echo ' '; } } else { echo ' '; } break; case 'edit_author': if (isset($_POST['id']) && is_numeric($_POST['id']) && isset($_POST['name']) && !empty($_POST['name'])) { $name = mysql_escape_string($_POST['name']); if (!mysql_query('UPDATE authors SET name="'.$name.'" WHERE id='.$_POST['id'])) { echo ' '; } } else { echo ' '; }

break; default: break; } } // $result_resource = mysql_query('SELECT id, name FROM authors'); if (mysql_num_rows($result_resource) > 0) { while ($row = mysql_fetch_array($result_resource)) { $authors[$row['id']] = stripslashes($row['name']); } } else { $authors = false; } // $result_resource = mysql_query( 'SELECT books.id, books.name, books.year, books.author_id, authors.name AS author_name FROM books INNER JOIN authors ON books.author_id=authors.id'); if (mysql_num_rows($result_resource) > 0) { while ($row = mysql_fetch_array($result_resource)) { $books[$row['id']] = array( 'name' => stripslashes($row['name']), 'year' => $row['year'], 'author_id' => $row['author_id'], 'author_name' => stripslashes($row['author_name']) ); } } else { $books = false; } echo ''; if ($authors) { echo ''; echo 'id\''; foreach ($authors as $id => $name) {

echo ''.$id.''.$name.''; } echo ''; } else { echo ' '; } echo ' '; echo ''; echo '\': '; echo ' '; echo ''; echo ''; echo ''; if ($books) { echo ''; echo 'id '; foreach ($books as $id => $info) { echo ''.$id.''.$info['name'].''.$info['year'].''.$info['author_name'].''; } echo ''; } else { echo ' '; } if ($authors) { echo ' '; echo ''; echo ': '; echo ' : '; echo ': '; foreach ($authors as $id => $name) { echo ''.$name.''; } echo ''; echo ''; echo ''; echo '';

} echo ''; ?>

. edit.php

:

echo '\': '; echo ' '; echo ''; echo ''; } } break; default: break; } } echo ''; ?>

, . . .

5.4 1 (. ). 2 . 3 , , . 4 . 5 , , . 5.5

1 . 2 mysql_query() ? 3 ?

6

6.1 , ,

. 6.2

? , , . , , . , . , . , . , . , , , .

, ,

, , , , , , .

, . :

function '_ (1, 2,... ){ _ return ", "; }

'_ (1, 2 ..) PHP. . , $. _ - - PHP- ( ' ). , return php- (-, ). , , , . , .

? ' , :

$data_str .= "checked"; } $str = ""; // add_label($str); // echo $str .">"; // ?> ,

. , .

, , . , "".

, ,

, . ' , .

, . , ,

. ' , , .

: , . : ... : , . : ... : : Warning: Missing argument 3 for add_article() in c:\users\nina\tasks\func\def_bad.php on line 2 , ,

. global: global $var1, $var2;

function Test_g(){ global $a; $a = $a*2; echo ' $a=',$a; } echo ' $a=',$a,', '; Test_g(); echo ""; echo ' $a=',$a,', '; Test_g(); ?> : $a=1, $a=2 $a=2, $a=4 ,

, . , . static: static $var1, $var2;

- , .

, , , - .

, - - . return. , , - , '. return , , .

, , . , .

return,

echo. - , ( ), - :

$my_age = Age(1981, 2004);

. , (). , :

} else { $year = date("Y") - $b_year - 1; $day = 31 - ($b_day - date ("d")); $month = 12 - ($b_month - date("m")); } return array ($day,$month,$year); } $age = Full_age("07","08","1974"); echo " $age[2] , $age[1] $age[0] "; // " 29 , 11 5 " ?>

, list(), . , , , , , :

list()

- . 6.3 ,

. -, , . functions.php. GET

POST ( isset() empty()):

( -):

if (unlink('my_dir/'.$_GET['file'])) { echo ' '.$_GET['file'].' '; } else { echo ' '; } } } break; case 'upload': if (isset($_FILES['myfile'])) { if ($_FILES['myfile']['error']==0) { if (move_uploaded_file($_FILES['myfile']['tmp_name'], 'my_dir/'.$_FILES['myfile']['name'])) { echo ' '.$_FILES['myfile']['name'].' '; } else { echo ' '; } } else { echo ' '; } } break; default: break; } } if ($handle = opendir('my_dir')) { $files = array(); while (false !== ($file = readdir($handle))) { if ($file!='.' && $file!='..') { $files[$file] = (is_dir('my_dir/'.$file)) ? 'dir' : 'file';

} } closedir($handle); if (!empty($files)) { echo ''; foreach ($files as $file => $type) { echo ''.$type.': '.$file.' (x)'; } echo ''; } else { echo " "; } echo ' : '; } else { echo " "; } echo ''; ?>

. , :

checkParam(array(param1, param2, param3), get); , ,

. ,

: function readdir($dir) { if ($handle = opendir($dir)) { $files = array(); while (false !== ($file = readdir($handle))) {

if ($file!='.' && $file!='..') { $files[$file] = (is_dir($dir.$file)) ? 'dir' : 'file'; } } closedir($handle); return $files; } else { return false; } }

- :

else { echo ' '; } } } break; case 'upload': if (isset($_FILES['myfile'])) { if ($_FILES['myfile']['error']==0) { if (move_uploaded_file($_FILES['myfile']['tmp_name'], 'my_dir/'.$_FILES['myfile']['name'])) { echo ' '.$_FILES['myfile']['name'].' '; } else { echo ' '; } } else { echo ' '; } } break; default: break; } } $files = readdir('my_dir'); if ($files) { if (!empty($files)) { echo ''; foreach ($files as $file => $type) { echo ''.$type.': '.$file.' (x)'; }

echo ''; } else { echo " "; } echo ' : '; } else { echo " "; } echo ''; ?>

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