05 File Handling Upload MYSQL

8/14/2019 05 File Handling Upload MYSQL

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GeshanManandhar.comGeshanManandhar.com 11

PHP Day 05PHP Day 05

Geshan ManandharGeshan ManandharDeveloper,Developer,

Young Innovations Private LimitedYoung Innovations Private Limited

www.geshanmanandhar.comwww.geshanmanandhar.com

http://www.php.net


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GeshanManandhar.com 2

PHP File Handling FuncitonsPHP File Handling Funcitons

Fopen(path\\to\\file\\file_name.ext, mode);Fopen(path\\to\\file\\file_name.ext, mode);

Returns a resource.Returns a resource.

$handle = fopen("c:\\data\\info.txt", "r");$handle = fopen("c:\\data\\info.txt", "r");


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Other PHP file relatedOther PHP file related

FunctionsFunctions$handle = fopen(test.txt, w+);

fgetsfgets ( resource $handle [, int $length] );( resource $handle [, int $length] );

fwritefwrite( resource $handle, string $string );( resource $handle, string $string );

feoffeof( resource $handle );( resource $handle );fclosefclose ( resource $handle );( resource $handle );

file_existsfile_exists ( string $filename_with_path );( string $filename_with_path );


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Simple file readSimple file read

?> code at day05\prog42_file_handling.phpcode at day05\prog42_file_handling.php


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Write to a file then read fromWrite to a file then read from

itit


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Reading part after writingReading part after writing

//now reading from the file just written on//now reading from the file just written on

$handle_r = fopen ($filename, "r");$handle_r = fopen ($filename, "r");

if(!$handle_r){if(!$handle_r){print ("
Error, ");print ("
Error, ");

print ("$filename could not be read.");print ("$filename could not be read.");

exit();exit();

}}

while(!feof($handle_r)){while(!feof($handle_r)){

$line_print = fgets($handle_r, 250);$line_print = fgets($handle_r, 250);

//print ("$line_print
\n");//print ("$line_print
\n");

print nl2br($line_print);print nl2br($line_print);

}}

fclose($handle_r);fclose($handle_r);

?>?>


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File UploadFile Upload FormForm

Select file: Select file:


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$_FILES Array$_FILES Array

$_FILES['file_field_name']['size']$_FILES['file_field_name']['size'] The size, in bytes, of the uploaded file.The size, in bytes, of the uploaded file.

$_FILES['file_field_name']['tmp_name']$_FILES['file_field_name']['tmp_name'] The temporary filename of the file in which theThe temporary filename of the file in which the

uploaded file was stored on the server.uploaded file was stored on the server.

$_FILES['file_field_name']['error']$_FILES['file_field_name']['error'] The error code associated with this file upload. ThisThe error code associated with this file upload. This

element was added in PHP 4.2.0element was added in PHP 4.2.0


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File UploadFile Upload Form ExampleForm Example

Select file: Select file:


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File Upload ProcessFile Upload Process

?>Code at: day05\file_upload_process.phpCode at: day05\file_upload_process.php


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A Form code with allA Form code with all

elementselements

Form Code at

day05\prog46_test_form.php


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Just displaying what it throwsJust displaying what it throws

$fdata['user_login'] = $_POST['user_login'];$fdata['user_login'] = $_POST['user_login'];

$fdata['pass_word'] = $_POST['pass_word'];$fdata['pass_word'] = $_POST['pass_word'];

$fdata['address'] = $_POST['address'];$fdata['address'] = $_POST['address'];

$fdata['email'] = $_POST['email'];$fdata['email'] = $_POST['email'];

$fdata['gender'] = $_POST['gender'];$fdata['gender'] = $_POST['gender'];$fdata['heard_from'] = $_POST['heard_from'];$fdata['heard_from'] = $_POST['heard_from'];

$fdata['newsletter'] = $_POST['newsletter'];$fdata['newsletter'] = $_POST['newsletter'];

print "Data Got from the previous form:";print "Data Got from the previous form:";

foreach($fdata as $key => $value){foreach($fdata as $key => $value){print "
".$key." - Has ---------------> ".$value;print "
".$key." - Has ---------------> ".$value;

}}


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MYSQLMYSQL

MYSQL is a free and open source relationalMYSQL is a free and open source relationaldatabase management system.database management system.

MYSQL has more than 11 million installations.MYSQL has more than 11 million installations.

MYSQL runs as a server providing multi-userMYSQL runs as a server providing multi-useraccess to a number of databases.access to a number of databases.

It is a cross platform database server.It is a cross platform database server.

MySQL 5.x has many added features.MySQL 5.x has many added features.


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MYSQL FeaturesMYSQL Features

Multiple storage engines (MyISAM, InnoDB)Multiple storage engines (MyISAM, InnoDB)

Views creation and updateViews creation and update

Transactions with the InnoDB EngineTransactions with the InnoDB Engine

Sub Queries / Nested SelectSub Queries / Nested Select

Primary key and indexingPrimary key and indexing


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MYSQL data types/field typesMYSQL data types/field types

char( length ) fixed lengthchar( length ) fixed length

varchar( 0-255 ) - variable length,varchar( 0-255 ) - variable length,occupies space as per the length of data.occupies space as per the length of data.

Int( ) signed and unsigned values,Int( ) signed and unsigned values,

unsigned holds values from 0 tounsigned holds values from 0 to4294967295.4294967295.

Text holds data character up to 65536Text holds data character up to 65536characters.characters.


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MYSQL data types/field typesMYSQL data types/field types

Float floating point numbers has singleFloat floating point numbers has singleprecision. Allowable values areprecision. Allowable values are-3.402823466E+38 to -1.175494351E-38, 0,-3.402823466E+38 to -1.175494351E-38, 0,and 1.175494351E-38 to 3.402823466E+38and 1.175494351E-38 to 3.402823466E+38

Datetime for time stamps formatDatetime for time stamps formatYYYY:MM:DD HH:MM:SS (date and time alsoYYYY:MM:DD HH:MM:SS (date and time alsopossible separately)possible separately)

ENUM(Option1, Option2, Option n) ENUM(Option1, Option2, Option n) for per specified fixed options like eye colorfor per specified fixed options like eye colorcan be black, brown, hazel, green only.can be black, brown, hazel, green only.


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Tools to assist MYSQLTools to assist MYSQL

developmentdevelopmentDBDesigner 4DBDesigner 4 is a free available database designis a free available database design

system that integrates database design,system that integrates database design,modeling, creation and maintenance into amodeling, creation and maintenance into asingle, seamless environment. Download itsingle, seamless environment. Download it herehere..

PHPMyAdminPHPMyAdmin is an open source tool written inis an open source tool written inPHP intended to handle the administration ofPHP intended to handle the administration ofMYSQL over the World Wide Web. ComesMYSQL over the World Wide Web. Comesbundled with XAMPP.bundled with XAMPP.
http://www.fabforce.net/downloads.phphttp://www.fabforce.net/downloads.phphttp://www.fabforce.net/downloads.php


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DBDesigner 4DBDesigner 4


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PHPMyAdminPHPMyAdmin


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Questions???Questions???


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AssignmentAssignment

Write a string taken input from a formWrite a string taken input from a formto a file called user_input.txt and showto a file called user_input.txt and show

it after reading from the same file.it after reading from the same file.

Create a user registration form withCreate a user registration form with

picture upload of just .jpg type and filepicture upload of just .jpg type and filesize less than 60 kb.size less than 60 kb. (let it be(let it be

accessible only after logging in to youraccessible only after logging in to yourlogin system you created).login system you created).


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Lets start some Db designLets start some Db design

Using DB Designer 4 lets sketch theUsing DB Designer 4 lets sketch thedatabase for a login system.database for a login system.

Some MYSQL user management.Some MYSQL user management.

Then insert some users with use ofThen insert some users with use of

PHPMyAdmin.PHPMyAdmin.

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05 File Handling Upload MYSQL