Demo : Giả sử ta có trang web về các quốc gia trên thế giới, mỗi quốc gia sẽ có 1 trang dạng "ten_quoc_gia.php", tên quốc gia được lưu trên CSDL MySQL là bảng DL "countries", bây h ta muốn tìm 1 trang của quốc gia mà ta không nhớ hết các chữ mà chỉ nhớ vài chữ đầu như : Vietnam thì nhớ có chữ V ở đầu ,Albania nhớ có chữ A , ... , vậy sao tìm. Ta hãy xem demo rồi sẽ rõ .
Các bước thực hiện demo:
1. Tạo thư mục "auto_search" ở trong thư mục web root ( wamp/www - cái khác tương tự nha )
2. Mở Wampserver ( tương tự cái khác ) tạo CSDL là "search", chọn CSDL này rồi "import" file "countries.sql" vào ,nội dung file "countries.sql" như sau:
--
-- Table structure for table `countries`
--
CREATE TABLE `countries` (
`id` int(6) NOT NULL auto_increment,
`value` varchar(250) NOT NULL default '',
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=243 ;
--
-- Dumping data for table `countries`
--
INSERT INTO `countries` VALUES (1, 'Afghanistan');
INSERT INTO `countries` VALUES (2, 'Aringland Islands');
INSERT INTO `countries` VALUES (3, 'Albania');
INSERT INTO `countries` VALUES (4, 'Algeria');
INSERT INTO `countries` VALUES (5, 'American Samoa');
INSERT INTO `countries` VALUES (6, 'Andorra');
INSERT INTO `countries` VALUES (7, 'Angola');
INSERT INTO `countries` VALUES (8, 'Anguilla');
INSERT INTO `countries` VALUES (9, 'Antarctica');
INSERT INTO `countries` VALUES (10, 'Antigua and Barbuda');
INSERT INTO `countries` VALUES (11, 'Argentina');
INSERT INTO `countries` VALUES (12, 'Armenia');
INSERT INTO `countries` VALUES (13, 'Aruba');
INSERT INTO `countries` VALUES (14, 'Australia');
INSERT INTO `countries` VALUES (15, 'Austria');
INSERT INTO `countries` VALUES (16, 'Azerbaijan');
INSERT INTO `countries` VALUES (17, 'Bahamas');
INSERT INTO `countries` VALUES (18, 'Bahrain');
INSERT INTO `countries` VALUES (19, 'Bangladesh');
INSERT INTO `countries` VALUES (20, 'Barbados');
INSERT INTO `countries` VALUES (21, 'Belarus');
INSERT INTO `countries` VALUES (22, 'Belgium');
INSERT INTO `countries` VALUES (23, 'Belize');
INSERT INTO `countries` VALUES (24, 'Benin');
INSERT INTO `countries` VALUES (25, 'Bermuda');
INSERT INTO `countries` VALUES (26, 'Bhutan');
INSERT INTO `countries` VALUES (27, 'Bolivia');
INSERT INTO `countries` VALUES (28, 'Bosnia and Herzegovina');
INSERT INTO `countries` VALUES (29, 'Botswana');
INSERT INTO `countries` VALUES (30, 'Bouvet Island');
INSERT INTO `countries` VALUES (31, 'Brazil');
INSERT INTO `countries` VALUES (32, 'British Indian Ocean territory');
INSERT INTO `countries` VALUES (33, 'Brunei Darussalam');
INSERT INTO `countries` VALUES (34, 'Bulgaria');
INSERT INTO `countries` VALUES (35, 'Burkina Faso');
INSERT INTO `countries` VALUES (36, 'Burundi');
INSERT INTO `countries` VALUES (37, 'Cambodia');
INSERT INTO `countries` VALUES (38, 'Cameroon');
INSERT INTO `countries` VALUES (39, 'Canada');
INSERT INTO `countries` VALUES (40, 'Cape Verde');
INSERT INTO `countries` VALUES (41, 'Cayman Islands');
INSERT INTO `countries` VALUES (42, 'Central African Republic');
INSERT INTO `countries` VALUES (43, 'Chad');
INSERT INTO `countries` VALUES (44, 'Chile');
INSERT INTO `countries` VALUES (45, 'China');
INSERT INTO `countries` VALUES (46, 'Christmas Island');
INSERT INTO `countries` VALUES (47, 'Cocos (Keeling) Islands');
INSERT INTO `countries` VALUES (48, 'Colombia');
INSERT INTO `countries` VALUES (49, 'Comoros');
INSERT INTO `countries` VALUES (50, 'Congo');
INSERT INTO `countries` VALUES (51, 'Congo');
INSERT INTO `countries` VALUES (52, ' Democratic Republic');
INSERT INTO `countries` VALUES (53, 'Cook Islands');
INSERT INTO `countries` VALUES (54, 'Costa Rica');
INSERT INTO `countries` VALUES (55, 'Ivory Coast (Ivory Coast)');
INSERT INTO `countries` VALUES (56, 'Croatia (Hrvatska)');
INSERT INTO `countries` VALUES (57, 'Cuba');
INSERT INTO `countries` VALUES (58, 'Cyprus');
INSERT INTO `countries` VALUES (59, 'Czech Republic');
INSERT INTO `countries` VALUES (60, 'Denmark');
INSERT INTO `countries` VALUES (61, 'Djibouti');
INSERT INTO `countries` VALUES (62, 'Dominica');
INSERT INTO `countries` VALUES (63, 'Dominican Republic');
INSERT INTO `countries` VALUES (64, 'East Timor');
INSERT INTO `countries` VALUES (65, 'Ecuador');
INSERT INTO `countries` VALUES (66, 'Egypt');
INSERT INTO `countries` VALUES (67, 'El Salvador');
INSERT INTO `countries` VALUES (68, 'Equatorial Guinea');
INSERT INTO `countries` VALUES (69, 'Eritrea');
INSERT INTO `countries` VALUES (70, 'Estonia');
INSERT INTO `countries` VALUES (71, 'Ethiopia');
INSERT INTO `countries` VALUES (72, 'Falkland Islands');
INSERT INTO `countries` VALUES (73, 'Faroe Islands');
INSERT INTO `countries` VALUES (74, 'Fiji');
INSERT INTO `countries` VALUES (75, 'Finland');
INSERT INTO `countries` VALUES (76, 'France');
INSERT INTO `countries` VALUES (77, 'French Guiana');
INSERT INTO `countries` VALUES (78, 'French Polynesia');
INSERT INTO `countries` VALUES (79, 'French Southern Territories');
INSERT INTO `countries` VALUES (80, 'Gabon');
INSERT INTO `countries` VALUES (81, 'Gambia');
INSERT INTO `countries` VALUES (82, 'Georgia');
INSERT INTO `countries` VALUES (83, 'Germany');
INSERT INTO `countries` VALUES (84, 'Ghana');
INSERT INTO `countries` VALUES (85, 'Gibraltar');
INSERT INTO `countries` VALUES (86, 'Greece');
INSERT INTO `countries` VALUES (87, 'Greenland');
INSERT INTO `countries` VALUES (88, 'Grenada');
INSERT INTO `countries` VALUES (89, 'Guadeloupe');
INSERT INTO `countries` VALUES (90, 'Guam');
INSERT INTO `countries` VALUES (91, 'Guatemala');
INSERT INTO `countries` VALUES (92, 'Guinea');
INSERT INTO `countries` VALUES (93, 'Guinea-Bissau');
INSERT INTO `countries` VALUES (94, 'Guyana');
INSERT INTO `countries` VALUES (95, 'Haiti');
INSERT INTO `countries` VALUES (96, 'Heard and McDonald Islands');
INSERT INTO `countries` VALUES (97, 'Honduras');
INSERT INTO `countries` VALUES (98, 'Hong Kong');
INSERT INTO `countries` VALUES (99, 'Hungary');
INSERT INTO `countries` VALUES (100, 'Iceland');
INSERT INTO `countries` VALUES (101, 'India');
INSERT INTO `countries` VALUES (102, 'Indonesia');
INSERT INTO `countries` VALUES (103, 'Iran');
INSERT INTO `countries` VALUES (104, 'Iraq');
INSERT INTO `countries` VALUES (105, 'Ireland');
INSERT INTO `countries` VALUES (106, 'Israel');
INSERT INTO `countries` VALUES (107, 'Italy');
INSERT INTO `countries` VALUES (108, 'Jamaica');
INSERT INTO `countries` VALUES (109, 'Japan');
INSERT INTO `countries` VALUES (110, 'Jordan');
INSERT INTO `countries` VALUES (111, 'Kazakhstan');
INSERT INTO `countries` VALUES (112, 'Kenya');
INSERT INTO `countries` VALUES (113, 'Kiribati');
INSERT INTO `countries` VALUES (114, 'Korea (north)');
INSERT INTO `countries` VALUES (115, 'Korea (south)');
INSERT INTO `countries` VALUES (116, 'Kuwait');
INSERT INTO `countries` VALUES (117, 'Kyrgyzstan');
INSERT INTO `countries` VALUES (118, 'Lao People''s Democratic Republic');
INSERT INTO `countries` VALUES (119, 'Latvia');
INSERT INTO `countries` VALUES (120, 'Lebanon');
INSERT INTO `countries` VALUES (121, 'Lesotho');
INSERT INTO `countries` VALUES (122, 'Liberia');
INSERT INTO `countries` VALUES (123, 'Libyan Arab Jamahiriya');
INSERT INTO `countries` VALUES (124, 'Liechtenstein');
INSERT INTO `countries` VALUES (125, 'Lithuania');
INSERT INTO `countries` VALUES (126, 'Luxembourg');
INSERT INTO `countries` VALUES (127, 'Macao');
INSERT INTO `countries` VALUES (128, 'Macedonia');
INSERT INTO `countries` VALUES (129, 'Madagascar');
INSERT INTO `countries` VALUES (130, 'Malawi');
INSERT INTO `countries` VALUES (131, 'Malaysia');
INSERT INTO `countries` VALUES (132, 'Maldives');
INSERT INTO `countries` VALUES (133, 'Mali');
INSERT INTO `countries` VALUES (134, 'Malta');
INSERT INTO `countries` VALUES (135, 'Marshall Islands');
INSERT INTO `countries` VALUES (136, 'Martinique');
INSERT INTO `countries` VALUES (137, 'Mauritania');
INSERT INTO `countries` VALUES (138, 'Mauritius');
INSERT INTO `countries` VALUES (139, 'Mayotte');
INSERT INTO `countries` VALUES (140, 'Mexico');
INSERT INTO `countries` VALUES (141, 'Micronesia');
INSERT INTO `countries` VALUES (142, 'Moldova');
INSERT INTO `countries` VALUES (143, 'Monaco');
INSERT INTO `countries` VALUES (144, 'Mongolia');
INSERT INTO `countries` VALUES (145, 'Montserrat');
INSERT INTO `countries` VALUES (146, 'Morocco');
INSERT INTO `countries` VALUES (147, 'Mozambique');
INSERT INTO `countries` VALUES (148, 'Myanmar');
INSERT INTO `countries` VALUES (149, 'Namibia');
INSERT INTO `countries` VALUES (150, 'Nauru');
INSERT INTO `countries` VALUES (151, 'Nepal');
INSERT INTO `countries` VALUES (152, 'Netherlands');
INSERT INTO `countries` VALUES (153, 'Netherlands Antilles');
INSERT INTO `countries` VALUES (154, 'New Caledonia');
INSERT INTO `countries` VALUES (155, 'New Zealand');
INSERT INTO `countries` VALUES (156, 'Nicaragua');
INSERT INTO `countries` VALUES (157, 'Niger');
INSERT INTO `countries` VALUES (158, 'Nigeria');
INSERT INTO `countries` VALUES (159, 'Niue');
INSERT INTO `countries` VALUES (160, 'Norfolk Island');
INSERT INTO `countries` VALUES (161, 'Northern Mariana Islands');
INSERT INTO `countries` VALUES (162, 'Norway');
INSERT INTO `countries` VALUES (163, 'Oman');
INSERT INTO `countries` VALUES (164, 'Pakistan');
INSERT INTO `countries` VALUES (165, 'Palau');
INSERT INTO `countries` VALUES (166, 'Palestinian Territories');
INSERT INTO `countries` VALUES (167, 'Panama');
INSERT INTO `countries` VALUES (168, 'Papua New Guinea');
INSERT INTO `countries` VALUES (169, 'Paraguay');
INSERT INTO `countries` VALUES (170, 'Peru');
INSERT INTO `countries` VALUES (171, 'Philippines');
INSERT INTO `countries` VALUES (172, 'Pitcairn');
INSERT INTO `countries` VALUES (173, 'Poland');
INSERT INTO `countries` VALUES (174, 'Portugal');
INSERT INTO `countries` VALUES (175, 'Puerto Rico');
INSERT INTO `countries` VALUES (176, 'Qatar');
INSERT INTO `countries` VALUES (177, 'Runion');
INSERT INTO `countries` VALUES (178, 'Romania');
INSERT INTO `countries` VALUES (179, 'Russian Federation');
INSERT INTO `countries` VALUES (180, 'Rwanda');
INSERT INTO `countries` VALUES (181, 'Saint Helena');
INSERT INTO `countries` VALUES (182, 'Saint Kitts and Nevis');
INSERT INTO `countries` VALUES (183, 'Saint Lucia');
INSERT INTO `countries` VALUES (184, 'Saint Pierre and Miquelon');
INSERT INTO `countries` VALUES (185, 'Saint Vincent and the Grenadines');
INSERT INTO `countries` VALUES (186, 'Samoa');
INSERT INTO `countries` VALUES (187, 'San Marino');
INSERT INTO `countries` VALUES (188, 'Sao Tome and Principe');
INSERT INTO `countries` VALUES (189, 'Saudi Arabia');
INSERT INTO `countries` VALUES (190, 'Senegal');
INSERT INTO `countries` VALUES (191, 'Serbia and Montenegro');
INSERT INTO `countries` VALUES (192, 'Seychelles');
INSERT INTO `countries` VALUES (193, 'Sierra Leone');
INSERT INTO `countries` VALUES (194, 'Singapore');
INSERT INTO `countries` VALUES (195, 'Slovakia');
INSERT INTO `countries` VALUES (196, 'Slovenia');
INSERT INTO `countries` VALUES (197, 'Solomon Islands');
INSERT INTO `countries` VALUES (198, 'Somalia');
INSERT INTO `countries` VALUES (199, 'South Africa');
INSERT INTO `countries` VALUES (200, 'South Georgia and the South Sandwich Islands');
INSERT INTO `countries` VALUES (201, 'Spain');
INSERT INTO `countries` VALUES (202, 'Sri Lanka');
INSERT INTO `countries` VALUES (203, 'Sudan');
INSERT INTO `countries` VALUES (204, 'Suriname');
INSERT INTO `countries` VALUES (205, 'Svalbard and Jan Mayen Islands');
INSERT INTO `countries` VALUES (206, 'Swaziland');
INSERT INTO `countries` VALUES (207, 'Sweden');
INSERT INTO `countries` VALUES (208, 'Switzerland');
INSERT INTO `countries` VALUES (209, 'Syria');
INSERT INTO `countries` VALUES (210, 'Taiwan');
INSERT INTO `countries` VALUES (211, 'Tajikistan');
INSERT INTO `countries` VALUES (212, 'Tanzania');
INSERT INTO `countries` VALUES (213, 'Thailand');
INSERT INTO `countries` VALUES (214, 'Togo');
INSERT INTO `countries` VALUES (215, 'Tokelau');
INSERT INTO `countries` VALUES (216, 'Tonga');
INSERT INTO `countries` VALUES (217, 'Trinidad and Tobago');
INSERT INTO `countries` VALUES (218, 'Tunisia');
INSERT INTO `countries` VALUES (219, 'Turkey');
INSERT INTO `countries` VALUES (220, 'Turkmenistan');
INSERT INTO `countries` VALUES (221, 'Turks and Caicos Islands');
INSERT INTO `countries` VALUES (222, 'Tuvalu');
INSERT INTO `countries` VALUES (223, 'Uganda');
INSERT INTO `countries` VALUES (224, 'Ukraine');
INSERT INTO `countries` VALUES (225, 'United Arab Emirates');
INSERT INTO `countries` VALUES (226, 'United Kingdom');
INSERT INTO `countries` VALUES (227, 'United States of America');
INSERT INTO `countries` VALUES (228, 'Uruguay');
INSERT INTO `countries` VALUES (229, 'Uzbekistan');
INSERT INTO `countries` VALUES (230, 'Vanuatu');
INSERT INTO `countries` VALUES (231, 'Vatican City');
INSERT INTO `countries` VALUES (232, 'Venezuela');
INSERT INTO `countries` VALUES (233, 'Vietnam');
INSERT INTO `countries` VALUES (234, 'Virgin Islands (British)');
INSERT INTO `countries` VALUES (235, 'Virgin Islands (US)');
INSERT INTO `countries` VALUES (236, 'Wallis and Futuna Islands');
INSERT INTO `countries` VALUES (237, 'Western Sahara');
INSERT INTO `countries` VALUES (238, 'Yemen');
INSERT INTO `countries` VALUES (239, 'Zaire');
INSERT INTO `countries` VALUES (240, 'Zambia');
INSERT INTO `countries` VALUES (241, 'Zimbabwe');
3. Tạo file thư viện jQuery "jquery-1.2.1.pack.js" ,để file này ở trong thư mục "auto_search" , nội dung file như sau:
/*
* jQuery 1.2.1 - New Wave Javascript
*
* Copyright (c) 2007 John Resig (jquery.com)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* $Date: 2007-09-16 23:42:06 -0400 (Sun, 16 Sep 2007) $
* $Rev: 3353 $
*/
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4. Tạo file "index.htm", để file này ở thư mục "auto_search", nội dung file nư sau:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Ajax, PHP, MySQL search với Jquery</title>
<script type="text/javascript" src="jquery-1.2.1.pack.js"></script>
<script type="text/javascript">
function lookup(inputString) {
if(inputString.length == 0) {
// Hide the suggestion box.
$('#suggestions').hide();
} else {
$.post("xuli.php", {queryString: ""+inputString+""}, function(data){
if(data.length >0) {
$('#suggestions').show();
$('#autoSuggestionsList').html(data);
}
});
}
} // lookup
function fill(thisValue) {
$('#inputString').val(thisValue);
setTimeout("$('#suggestions').hide();", 200);
}
</script>
<style type="text/css">
body {
font-family: Helvetica;
font-size: 11px;
color: #000;
}
h3 {
margin: 0px;
padding: 0px;
}
.suggestionsBox {
position: absolute;
left: 30px;
margin: 10px 0px 0px 0px;
width: 200px;
background-color: #212427;
-moz-border-radius: 7px;
-webkit-border-radius: 7px;
border-radius: 4px;
border: 2px solid #000;
color: #fff;
}
.suggestionList {
margin: 0px;
padding: 0px;
}
.suggestionList li {
margin: 0px 0px 3px 0px;
padding: 3px;
cursor: pointer;
}
.suggestionList li:hover {
background-color: #659CD8;
}
</style>
<style type="text/css">
.orange {
margin-left: 230px;
color: #fef4e9;
border: solid 2px #da7c0c;
background: #f78d1d;
background: -webkit-gradient(linear, left top, left bottom, from(#faa51a), to(#f47a20));
background: -moz-linear-gradient(top, #faa51a, #f47a20);
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#faa51a', endColorstr='#f47a20');
}
.orange:hover {
background: #f47c20;
background: -webkit-gradient(linear, left top, left bottom, from(#f88e11), to(#f06015));
background: -moz-linear-gradient(top, #f88e11, #f06015);
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#f88e11', endColorstr='#f06015');
}
.orange:active {
color: #fcd3a5;
background: -webkit-gradient(linear, left top, left bottom, from(#f47a20), to(#faa51a));
background: -moz-linear-gradient(top, #f47a20, #faa51a);
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#f47a20', endColorstr='#faa51a');
}
.canhle{
margin-left: 50px;
}
</style>
</head>
<body>
<div>
Nhập tên quốc gia của bạn:
<form action="ketqua.php" name="search" method="POST" >
<div>
<br />
<input class="canhle" type="text" size="30" name="giatri" value="" id="inputString" onkeyup="lookup(this.value);" onblur="fill();" />
</div>
<div class="suggestionsBox" id="suggestions" style="display: none;">
<div class="suggestionList" id="autoSuggestionsList">
</div>
</div>
<br/>
<input class="button orange" type="submit" name="0k" value='Search' />
</form>
</div>
</body>
</html>
5. Tạo file "xuly.php", để file này ở thư mục "auto_search", nội dung file như sau:
<?php
// mysqli('localhost', 'Username', 'Password', 'Database');
$db = new mysqli('127.0.0.1', 'root', '', 'search');
if(!$db) {
// Báo lỗi
echo 'ERROR: Không thể kết nối với cơ sở dữ liệu.';
} else {
// Có phải là do form của ta yêu cầu?
if(isset($_POST['queryString'])) {
$queryString = $db->real_escape_string($_POST['queryString']);
// Kiểm tra độ dài chuỗi, có ít nhất 1 ký tự thì mới xử lí
if(strlen($queryString) >0) {
// Dùng cấu trúc LIKE '$queryString%'
// ví dụ $queryString = 'Uni';
// sẽ cho ra data = 'United States, United Kindom';
// Sửa lại cho phù hợp với database của bạn nhé.
// ví dụ: SELECT cột FROM bảng WHERE cột LIKE '$queryString%' LIMIT 10
$query = $db->query("SELECT value FROM countries WHERE value LIKE '$queryString%' LIMIT 10");
if($query) {
while ($result = $query ->fetch_object()) {
// định dạng kết quả.
// Ở onClick ta sẽ dùng hàm fill đã khai báo ở javascript.
// Nhớ sửa cho phù hợp với database của bạn: $result->value thành $result->cột
echo '<li onClick="fill(\''.$result->value.'\');">'.$result->value.'</li>';
}
} else {
echo 'ERROR: Lỗi truy vấn';
}
}
} else {
echo 'Không được truy cập trực tiếp';
}
}
?>
6. Tạo file"ketqua.php", để trong thư mục "auto_search", nội dung file như sau:
<?php
$db = new mysqli('127.0.0.1', 'root', '', 'search');
if(!$db) {
// Báo lỗi
echo 'ERROR: Không thể kết nối với cơ sở dữ liệu.';
} else {
if(isset($_POST['giatri'])) {
$giatri = $db->real_escape_string($_POST['giatri']);
if(strlen($giatri) >0) {
$query = $db->query("SELECT countries.value FROM countries WHERE value='$giatri'");
$result = $query ->fetch_object();
if (($query)&&($result)){
echo " Kết quả Search tên quốc gia :".$giatri."<br/>" ;
print"<a href='$giatri.php'> Nhấp vào đây để xem nội dung </a>";
exit;
} else {
echo "Không tìm được giá trị của bạn nhập vào !" ."<br/>" ;
exit;
}
} else {
echo 'ERROR: không truy vấn được';
}
} else {
echo " Quá trình nhập giá trị bị lỗi ! " ;
}
}
?>
7. Tạo file "Vietnam.php", để trong thư mục "auto_search", nội dung file như sau:
<?php
echo " Chao ban den voi Vietname" ;
?>
8. Tạo file "Albania.php", để trong thư mục "auto_search", nội dung file như sau:
<?php
echo " Wellcome Albania ! " ;
?>
9. Demo:
Hình minh họa trang "index.htm" :
Hình minh họa trang "index.htm" khi gõ chữ "V" :
Hình minh họa khi chọn "Vietnam" và nhấp "Search" :
Hình minh họa khi nhấp vào đường link :
Hình minh họa khi không gõ từ nào mà "Search" ( hoặc từ không có trong CSDL ):
Xem Demo :Click here !
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