Học php, mysql và javascript - p 52 ppt

example XML document, DOM tree of,389 DOUBLE data type, 171 DROP keyword, 176 DROP TABLE command, issuing from PHP, 240 duplication of data across multiple database columns, 204 across m

example XML document, DOM tree of,

389

DOUBLE data type, 171

DROP keyword, 176

DROP TABLE command, issuing from PHP,

240

duplication of data

across multiple database columns, 204

across multiple database rows, 206

dynamic linking (PHP), 85

use by WordPress blogging platform, 86

dynamic web content, 1–11

Apache web server, 8

benefits of PHP, MySQL, and JavaScript, 5–

8

combination of PHP, MySQL, and

JavaScript, 9

HTTP and HTML, 2

E

each function, using with list function to walk

through associative array, 120

EasyPHP, 14–18

downloading and installing, 14

overcoming installation problems, 14

testing installation, 16

echo <<< construct, 252

echo command (PHP), print command versus,

51

Editra program editor, 29

else statements

in JavaScript, 329

in PHP, 72

closing if else or if elseif else

statements, 74

elseif statements (PHP), 73

positioning and number of, 74

email address, validating in form input, 360

empty object, creating in JavaScript, 343

encapsulation, 100

end function, using with PHP arrays, 128

endswitch command, replacing final curly

brace in switch statement, 77

equality operators

in JavaScript, 323

in PHP, 67

ereg_replace function (PHP), 149

errors

error text from last called MySQL function

in PHP, 227 JavaScript

catching using onError, 326 catching using try catch, 327 debugging, 303

trapping in for loop using break statement,

83 trapping in for loop using continue

statement, 84 escape characters

backslash (\) in regular expressions, 363

in JavaScript, 310

in PHP, 47 preventing in strings for submission to

MySQL, 263 escapeshellcmd function (PHP), 150 European Laboratory for Particle Physics

(CERN), 1 event-min.js file, 396 exclusive or (xor) operator, 44 exec system call (PHP), 149 arguments, 150 execution (` `) operator, 63 EXPLAIN tool (MySQL), 217 explicit casting, 85

JavaScript and, 334 explode function, using to create PHP arrays,

125 expressions JavaScript, 319–321 literals and variables, 320 operators, 321–325 PHP, 61

literals and variables, 62 operators, 63–70 extends operator (PHP), 109 Extensible Hypertext Markup Language (see

XHTML) extract function, using with PHP arrays, 125

F

\f (form feed) in JavaScript strings, 310 fclose function (PHP), 138

fgets function (PHP), 138, 141 reading from files, 139 file handling in PHP, 137–149 checking if file exists, 137 copying files, 139

creating a file, 137

deleting a file, 140

locking files, 142

moving a file, 140

reading entire file, 143

reading from files, 139

updating files, 141

uploading files, 144–149

form data validation, 147

using $_FILES array, 146

file pointer, 141

$_FILES array, 145

contents of, 146

files, including and requiring in PHP, 96

include statement, 96

include_once, 97

require and require_once, 97

FileZilla, 28

file_exists function, 137

file_get_contents function (PHP), 143

final methods (PHP), 112

finally clause (try catch), 328

Firefox

accessing JavaScript error messages, 303

Error Console message for JavaScript errors,

304

Firebug plug-in, 305

FireFTP, 27

FireFTP

advantages of, 27

installing, 27

fixation, session, 294

FLOAT data type, 171

flock function (PHP), 142

filesystems not supporting and use on

multithreaded server, 143

unlocking files, 143

fopen function (PHP), 138

supported modes, 138

for loops

in JavaScript, 332

breaking out of, 333

continue statement, 334

in PHP, 81

breaking out of, 83

continue statement, 84

controls removed from body of loop, 82

when to use, while loops versus, 82

foreach as loops, 119–120

printing out values in multidimensional

associative array, 122 walking through multidimensional numeric

array, 123 forEach method (JavaScript), 349 cross-browser solution, 350 foreign keys, 206

form feed (\f) in JavaScript strings, 310

<form> tag, onSubmit attribute, 357 forms, 251–267

building using PHP, 251 creating form to add records to MySQL

database, using Smarty, 272 data validation, 147

example PHP program converting between

Fahrenheit and Celsius, 264–266 inserting and deleting data in MySQL using

PHP (example), 232–236 processing submitted data using PHP, 253–

264 checkboxes, 257 default values, 255 hidden fields, 260 input types, 256 labels, 262 radio buttons, 259 sanitizing input, 263 select tags, 260 text areas, 256 text boxes, 256 redisplaying after PHP validation, 370–375 uploading files from, 144–149

validating user input with JavaScript, 355–

361 form field validation, 358–361 frameworks for JavaScript, 393, 394 (see also YUI)

fread function (PHP), 138 reading a file, 139 friends on social networking site adding and dropping, 424 module showing user’s friends and

followers, 427–430 fseek function (PHP), 141 FTP, transferring files to and from web server,

27 FULLTEXT indexes, 182 stopwords, 457–459 using MATCH AGAINST on, 188

defined, 89

JavaScript, 312, 337–341

defining, 337

prototype property, 344

returning a value, 339

returning an array, 341

MySQL, 194

commonly used, reference listing, 461–

472

PHP, 52, 90–96

array functions, 123–128

defining, 91

passing by reference, 94

returning a value, 92

returning an array, 93

version compatibility, 98

social networking site project, 407–409

fwrite function (PHP), 138

G

/g (global matching) in regular expressions,

369

$_GET and $_POST arrays, sanitizing user

input, 263

GET method, 380, 397

Ajax GET example using YUI, 397

using instead of Ajax POST, 385–387

getElementById function (JavaScript), 316

get_post function (PHP), 234

global matching in regular expressions (/g),

369

global variables

JavaScript, 312

PHP, 55

returning from function calls, 95

Glossword WAMP, 18

Gmail, use of Ajax to check for username

availability, 10

Google Chrome

accessing JavaScript error messages, 303

Error Console message for JavaScript error,

304

Google Maps, 377

GRANT command, example parameters for,

165

GROUP BY command, 191

H

head section of HTML document, using

JavaScript within, 301 heredoc (<<<) operator, 48 hexadecimals, escaping in JavaScript strings,

310 hidden fields in forms, 260 history object (JavaScript), 317 HTML, 2, 151

(see also XHTML) basic knowledge of, xiii DOM (Document Object Model) in

JavaScript, 314–318 incorporating PHP within, 33 JavaScript and, 300

comment tags for older and nonstandard

browsers, 301 debugging JavaScript errors, 303 including JavaScript files, 302 using scripts within document head,

301 left arrow (&larr; entity), 417 manipulation with JavaScript, 7 multiline output, creating in PHP, 252 program editors for, 29

sanitizing in form input, 263 HTML 4.01 document types, 153 HTML injections, 248

<html> tag, xmlns attribute, 153 htmlentities function (PHP), 57, 249 HTTP, 2

request/response procedure, 2 HTTP authentication, 282–288 checking for valid username and password

using PHP, 284 login prompt, 282 storing usernames and passwords, 285 creating users table in MySQL using

PHP, 286 PHP authentication using MySQL, 287 salting passwords, 285

user clicks Cancel before logging in, 283 HTTPS, 293

I

identity operator (see ===, under symbols) IDEs (Integrated Development Environments),

30

PHP IDEs, listed, 32

if else statements (PHP), 72

if statements

in JavaScript, 328

else statements, 329

in PHP, 71

OR operator, problems with, 70

image media types, 149

images, uploading as form data in PHP, 144

implicit casting, 84

in keyword (JavaScript), 347

include statements in PHP, 96

include_once function (PHP), 97

increment operator (++), 42, 45

in JavaScript, 308

using in while loop, 80

variable incrementing in JavaScript, 310

incrementing

using AUTO_INCREMENT in MySQL,

172

variable incrementing in JavaScript, 310

variables in JavaScript, 310

index.php file (social networking site project),

411

indexes, 206

arrays in PHP, 40

associative arrays, 117

numerically indexed, 115

MySQL tables, 177–183

adding when creating tables, 179

creating using ALTER TABLE, 178

creating using CREATE INDEX, 179

FULLTEXT index, 182

performance and, 182

PRIMARY KEY, 180

types of indexes, 178

using MATCH AGAINST on

FULLTEXT index, 188

inheritance

defined, 100

PHP classes, 109–113

initialization expression (for loop), 81

ini_set function (PHP), 293

session data on shared server, 296

InnoDB storage engine, 215

input, forms

sanitizing, 263

types of input, 256

INSERT command, 7

adding data to table, 174 insert IDs, 243

instance of a class, 342 INT data type, 171 INTEGER data type, 171 Integrated Development Environments (see

IDEs) interface, PHP objects, 100 Internet Explorer

accessing JavaScript error messages, 303 compatibility issues, JavaScript program

testing and, 305 Error Console message for JavaScript error,

304 forEach method and, 350 incompatibilities caused by JScript, 316 XMLHttpRequest object, IE 6 and, 378 Internet media types, 147

Internet, early history of, 1 intval function (PHP), 266

IP addresses, 3 storing for users, 293

is system command, 149 isNAN function (JavaScript), 360 isset function (PHP), 254 is_array function, 123

J

JavaScript, 299–318, 377 (see also Ajax) arrays, 346–353 benefits of, 5 combination with PHP and MySQL for

dynamic content, 9 comments, 305

conditionals, 328–331 DOM (Document Object Model), 314–318 explicit casting and, 334

expressions, 319 frameworks for, 393, 394 (see also YUI) functions, 312, 337–341 global variables, 312 HTML and

debugging JavaScript errors, 303 including JavaScript files, 302 older and nonstandard browsers,

comment tags, 301

using scripts within document head,

301

HTML text and, 300

injection via malicious form input, 263

local variables, 312

looping, 331–334

objects, 341–346

onError event, 326

operators, 308–311, 321–325

regular expressions, 361–369

using, 369

semicolon (;) ending statements, 305

try catch statements, 327

using, 7

validating user input, 355–361

variable typing, 311

variables, 306–307

with statement, 325

XSS injections, 248

JOIN ON construct in MySQL, 194

join method (JavaScript), 350

joining tables in MySQL, 192–194

AS keyword, 194

JOIN ON construct, 194

NATURAL JOIN, 193

JScript, 316

K

keys, 168, 181

(see also indexes)

purposes of keys in MySQL, 206

keys and values, numerically indexed PHP

arrays, 117

L

labels in forms, 262

LAMPs (Linux, Apache, MySQL, and PHP),

13

installing on Linux, 25–26

LIKE qualifier (MySQL), 186

link URL, reading with JavaScript, 315

linking, dynamic linking in PHP, 85

links object (JavaScript), 317

Linux

accessing MySQL via command line, 161

accessing MySQL via phpMyAdmin, 195

installing LAMP, 25–26

installing MDB2 package, 477

installing other PEAR packages, 481 installing PHPUnit, 482

likely location for mysqldump, 219 system calls from PHP, 149 Linux, Apache, MySQL, and PHP (see LAMPs) list function, using with each function to walk

through associative array, 120 literals, 320

PHP, 62 local variables JavaScript, 312 PHP, 53 locking files in PHP, 142 log out page (social networking site project),

433 logical operators

in JavaScript, 309, 324

in MySQL queries, 194

in PHP, 44, 69 login page, social networking site project, 418 login.php file, creating, 226

looping

in JavaScript, 331–334 breaking out of loops, 333 continue statement, 334

do while loops, 332 for loops, 332

while loops, 331

in PHP, 78–84 breaking out of loops, 83 continue statement, 84

do while loops, 81 for loops, 81

foreach as loop, 119–120 while loops, 78

M

/m (multiline mode) in regular expressions,

369 Mac OS X accessing MySQL via command line, 160 accessing MySQL via phpMyAdmin, 195 FTP on, 28

installing a MAMP, 19–25 versions of OS X prior to 10.3, 25 installing other PEAR packages, 481 installing PEAR, 475

installing PHPUnit, 482 likely location for mysqldump, 219

system calls from PHP, 149

Macintosh, SSH on, 27

MAMPs (Mac, Apache, MySQL, and PHP), 13

installing on Mac OS X, 19–25

alternative MAMPs, 25

configuring ports, 24

many-to-many relationships, 213

MATCH AGAINST queries, 188

using Boolean mode, 189

md5 function (PHP), 285

md5 hexadecimal strings, 294

MDB2 package (PEAR), 473

creating connect instance, 477

installing on Linux or Unix, 477

installing on Mac OS, 475

installing on Windows, 474

querying database, 478

using to rewrite sqltest.php program

(example), 479

MEDIUMINT data type, 171

members module, social networking site

project, 424–427

adding and dropping friends, 424

listing all members, 424–427

viewing a user’s profile, 424

messaging module, social networking site

project, 430–433

metacharacters (regular expressions), 361

escaping, 363

summary of, 367

method chaining, 340

methods

defined, 99

JavaScript objects, 314, 342

static methods, 345

using prototype keyword for a method,

344

PHP objects, 89

calling, 102

scope, controlling in PHP 5, 107

writing, 105

Microsoft Internet Explorer (see Internet

Explorer)

Microsoft JScript, 316

{min,max} matching in regular expressions,

368

mktime function (PHP), 134

modification expression (for loop), 81

move_uploaded_file function (PHP), 146

Mozilla Firefox (see Firefox) multidimensional arrays

in JavaScript, 348

in PHP, 121–123 multiline mode in regular expressions (/m),

369 multipart/form-data encoding, 144 multiple-line commands in PHP, 47 MyISAM ENGINE, 167

MySQL accessing remotely, 27 accessing via command-line, 158–177 accessing via command-line interface

on remote server, 162 accessing via phpMyAdmin, 195 adding data to table using PHP, 240 AUTO_INCREMENT, using from PHP,

243 backing up and restoring data, 219–223 benefits of, 5

combination with PHP and JavaScript for

dynamic content, 9 creating form to add records to database,

using Smarty, 272 creating table using PHP, 238 creating users table and adding accounts

using PHP, 286 data retrieval from table using PHP, 241 database design, 201

database terms, summary of, 158 deleting data from database using PHP,

242 describing table using PHP, 239 dropping table using PHP, 240 example of simple database, 157 EXPLAIN tool for queries, 217 FULLTEXT stopwords, 457–459 functions, 194

commonly used, reference listing, 461–

472 indexes for tables, 177–183 inserting and deleting data using PHP

(example), 232–238

$_POST array, 234 deleting a record, 235 displaying form, 236 querying database, 236 running program, 237 joining tables, 192–194

normalization, 203

PEAR MDB2 package (see MDB2 package)

performing secondary query using PHP,

244

PHP authentication using, 287

preventing escape character injection into

string presented to MySQL, 263

preventing HTML and XSS injections, 248

preventing SQL injection, 245–248

querying a database, 183–192

querying database with PHP, 225–231

connecting to MySQL, 227–231

creating login file, 226

steps in process, 225

relationships among data, 211–214

sanitizing in form input, 263

social networking site project

tables setup file, 410

transactions, 214–217

updating data using PHP, 242

using, 6

mysqldump utility, 219

dumping backups to file, 220

dumping data into CSV format files, 222

locations on various installations and

operating systems, 219

mysql_close function (PHP), 231

mysql_connect function (PHP), 227

mysql_entities_fix_string function (PHP), 249

mysql_error function (PHP), 227

mysql_fetch_array function (PHP), 274

mysql_fetch_row function (PHP), 231

mysql_insert_id function (PHP), 244

mysql_result function (PHP), 229

N

\n (newline character), 367

in JavaScript strings, 310

in PHP strings, 47

{n} matches exactly n times in regular

expressions, 368

{n, } matches n times or more in regular

expressions, 368

naming convention for JavaScript functions,

338, 342

NATURAL JOIN in MySQL, 193

new operator in JavaScript, 322

normalization, 203–211

First Normal Form, 204

Second Normal Form, 206–208 Third Normal Form, 209–210 when not to use, 210

<noscript> </noscript> tags, 300 not operator (!), 44, 309

NOT operator (!), 69 NOT operator (in MySQL), 194 NULL values, representing FALSE, 69 numbers

converting PHP strings to and from, 49 converting strings to and from in JavaScript,

311 numeric arrays

in PHP, 115 multidimensional, 122 walking through, using foreach as,

119 JavaScript, 346 assigning element values, 346 assignment using Array keyword, 347 numeric data types (MySQL), 170

numeric variables JavaScript, 307 PHP, 39

O

objects defined, 89 DOM (Document Object Model) in

JavaScript, 314–318 JavaScript, 341–346

creating, 343 declaring a class, 342 prototype keyword, 344 PHP, 98–113

accessing, 101 cloning, 102 constructors, 104 creating, 101 declaring a class, 100 declaring constants, 107 declaring properties, 106 inheritance and extension of classes,

109–113 property and method scope in PHP 5,

107 static methods in PHP 5, 105 terminology associated with, 99 writing methods, 105

octals, escaping in JavaScript strings, 310

one-to-many relationships, 212

one-to-one relationships in data, 211

one-way functions, 285

onError event (JavaScript), 326

open source, 9

Opera browsers

accessing JavaScript error messages, 303

Error Console message for JavaScript, 304

Error Console message for JavaScript error,

304

operating systems, 13

(see also individual operating system names)

system calls in PHP, 149

operators

JavaScript, 308–311, 321–325

arithmetic, 308

assignment, 308

associativity, 322

comparison, 309

escaping characters, 310

logical, 309

precedence of, 321

relational, 323

string concatenation, 310

types of, 321

PHP, 42, 63–70

arithmetic, 42

assignment, 43

associativity, 66

comparison, 43

logical, 44

operator precedence, 64

precedence of, 64

relational, 67–70

types of, 63

or operator

low-precedence or, 44

precedence in PHP, 65

||, 44, 309

OR operator, 69

causing problems in if statements, 70

OR operator (in MySQL), 194

ORDER BY command, 191

P

page design and layout file (social networking

project), 409

parent operator (PHP), 110

parsers calling PHP parser, 34 passing by reference, 94 pattern matching, 361 (see also regular expressions) doing with LIKE qualifier in MySQL, 186 PEAR (PHP Extension and Application

Repository), 473–481 creating connect instance, 477 installation, 473–477

installing other PEAR packages, 481 querying database, 478

rewriting sqltest.php program (example)

using MDB2, 479 Perl, 5

PHP, 33–59, 269 (see also Smarty templating system) adding data to MySQL table, 240 benefits of, 5

casting, implicit and explicit, 84 code examples from this book, 35 combination with MySQL and JavaScript

for dynamic content, 9 comments, 36

conditionals, 70–78 constants, 50 creating forms, 251 creating table in MySQL, 238 deleting data from MySQL database, 242 describing table in MySQL, 239

determining web server’s document root,

270 difference between echo and print

commands, 51 dropping table in MySQL, 240 dynamic linking, 85

echo <<< statement, 48, 252 expressions, 61

form handling creating forms, 251 program converting between Fahrenheit

and Celsius, 264–266 retrieving submitted data, 253–264 sanitizing input, 263

form validation, redisplaying form after,

370–375 functions, 52 IDEs, listing of, 32 incorporating within HTML, 33

calling PHP parser, 34

inserting and deleting data in MySQL

(example), 232–238

$_POST array, 234

deleting a record, 235

displaying form, 236

querying database, 236

running program, 237

inserting and deleting data in MySQL table,

deleting a record, 235

multiple-line commands, 47

operators, 42–45, 63–70

arithmetic, 42

assignment, 43

comparison, 43

logical, 44

performing secondary query on MySQL

table, 244

phpDesigner IDE, 30

preventing HTML and XSS injections in

MySQL, 248

preventing SQL injection in MySQL, 245–

248

using placeholders, 248

program editors for, 29

querying MySQL database, 225–231

building and executing query, 228

closing connection, 231

connecting to MySQL, 227

creating login file, 226

fetching result, 229

selecting a database, 228

steps in process, 225

regular expressions in, 369

retrieving data from MySQL table, 241

semicolon (;) ending PHP statements, 37

support by Apache web server, 9

updating data in MySQL table, 242

using, 5

using AUTO_INCREMENT in MySQL

table, 243

using cookies, 279–282

accessing a cookie, 281

destroying a cookie, 282

setting a cookie, 281

using for Ajax

program for Ajax GET request, 397

urlget.php program (example), 398

using HTTP authentication, 282–288

checking for valid username and

password, 284 login prompt, 282 storing usernames and passwords, 285 using in social networking site (see social

networking site, creating) using sessions, 289–296

ending a session, 292 session security, 293–296 starting a session, 289–291 using with Ajax

urlget.php program (example), 386 urlpost.php program (example), 383 xmlget.php program (example), 387 variable assignment, 45–47

escaping characters in strings, 47 incrementing and decrementing variable,

45 string concatenation, 46 string types, 46 variable scope, 53–58 variable typing, 49 variables, 38–42 arrays, 39 naming rules, 42 numeric, 39 syntax, 37 two-dimensional arrays, 40 version compatibility, checking for

functions, 98 PHP 5

constructor methods, creating, 104 destructor methods, creating, 104 property and method scope, 107 static methods, 105

PHP Extension and Application Repository (see

PEAR) php file extension, 33 phpinfo function, 90 phpMyAdmin, 195 accessing MySQL from Linux, 195 accessing MySQL from Mac OS X, 195 accessing MySQL from Windows, 195 using, 197

PHPUnit, 481–484 manual for, 484 rules for writing tests, 484 phpversion function, 98 placeholders

using to prevent SQL injection in MySQL,

247

pop method (JavaScript arrays), 350

ports, configuring for MAMP on Mac OS X,

24

$_POST array, 234

POST method, 145

Ajax program, urlpost.html (example), 380–

385

making Ajax POST request, 382

<pre> </pre> tags

forcing monospaced font, 236

<pre> </pre> tags, 122, 123

precedence, operator, 64

in JavaScript, 321

precision, setting for printf display, 131

predefined constants (PHP), 51

preg_match function (PHP), 369

preg_match_all function (PHP), 369

preg_replace function (PHP), 369

primary keys, 180

adding to table retrospectively, 181

adding when creating tables, 181

importance in database design, 202

print command (PHP), echo command versus,

51

printf function (PHP), 129–133

conversion specifiers, 129

setting precision for displayed results

conversion specifier components, 131

setting precision of displayed result, 131

string padding, 132

print_r function, 101

privacy, databases and, 214

private keyword (PHP 5), 108

profiles, social networking site project, 419–

424

adding profile image, 420

adding “About Me” text, 420

displaying current profile, 421

processing image, 420

viewing another member’s profile, 424

program editors, 29

properties

defined, 99

JavaScript objects, 314, 342

adding new, 343

prototype property, 344

static properties, 345

PHP objects accessing, 102 declaring, 106 scope, controlling in PHP 5, 107 protected keyword (PHP 5), 108 prototype keyword (JavaScript), 344 extending objects, 345

static methods and properties, 345 prototype property (JavaScript functions), 344 pseudofunctions (constructs), 90

public keyword (PHP 5), 108 push method (JavaScript arrays), 346, 350 PuTTY program, for Telnet and SSH access on

Windows, 27

Q

querying MySQL database, 183–192, 225 (see also PHP, querying MySQL database) building and executing query from PHP,

228 DELETE command, 184 EXPLAIN tool for queries, 217 grouping results with GROUP BY, 191 LIMIT qualifier, 187

logical operators in WHERE queries, 194 MATCH AGAINST construct, 188 SELECT command, 183

SELECT COUNT command, 183 SELECT DISTINCT command, 184 sorting results with ORDER BY, 191 UPDATE SET construct, 190 using PHP, 236

WHERE keyword, 185 quotation marks, 38 (see also listings under Symbols section) escaping in JavaScript strings, 310

in JavaScript strings, 306

R

\r (carriage return)

in JavaScript strings, 310

in PHP strings, 47 radio buttons, 258 radio buttons in forms, 259 ranges, indicating in regular expressions, 364 readyState property (XMLHttpRequest), 382 REAL data type, 171

reference books, xiv