giao trinh lap trinh web voi php va mysql
ỨNG DỤNG CƠ SỞ DỮ LIỆU TRÊN WEB VỚI PHP VÀ MYSQL
... some_value VÍ DỤ < ?php $con = mysql_ connect("localhost", "root", ""); if (!$con) die('Could not connect: ' . mysql_ error()); if (mysql_ query("CREATE ... database: " . mysql_ error(); mysql_ close($con); ?> CHÚ Ý! Lệnh chuyển trang tự động trong PHP header(“location: url”); Ví dụ header(“location: index .php ); Trong JavaScript window.location ... COUNT(*) AS alias FROM table_name WHERE column_name operator value Lệnh PHP mysql_ num_rows(data) XÓA BẢNG < ?php $con = mysql_ connect("localhost", "root", "");...
Ngày tải lên: 17/04/2014, 20:53
Phát triển web với PHP và MySQL - p 10 pot
... are scalar variables, which store a single value. An array is a variable that stores a set or sequence of values. One array can have many ele- ments. Each element can hold a single value, such ... looked at scalar variables in Chapter 1, PHP Crash Course.” A scalar variable is a named location in which to store a value; similarly, an array is a named place to store a set of values, thereby ... contents directly from the database. This is covered in Chapter 10, “Accessing Your MySQL Database from the Web with PHP. ” You can also use various functions to extract part of an array or to reorder an array....
Ngày tải lên: 06/07/2014, 19:20
Phát triển web với PHP và MySQL - p 12 pps
... $key2, and $key3. You can see from the output that the values of $key1, $key2, and $key3 are “value1”, “value2”, and “value3”, respectively. These values came from the original array. There are two ... $myPrefix_key3”; This code will again produce the output: value1 value2 value3. Note that for extract() to extract an element, that element’s key must be a valid variable name, which means that keys starting ... in reverse order: $value = end ($array); while ($value) { echo “$value<br>”; $value = prev($array); } If $array was declared like this: $array = array(1, 2, 3); Using PHP P ART I 88 05 7842...
Ngày tải lên: 06/07/2014, 19:20
Phát triển web với PHP và MySQL - p 13 pot
... fourth parameter can be used to send any additional valid email headers. Valid email headers are described in the document RFC822, which is available online if you want more details. (RFCs or ... current form, double-check Appendix A, “Installing PHP 4 and MySQL. ” Through this chapter, we’ll enhance this basic script by making use of PHP s string handling and regular expression functions. Formatting ... last column shows what value would be returned from the function. TABLE 4.2 String Case Functions and Their Effects Function Description Use Value $subject Feedback from web site strtoupper()...
Ngày tải lên: 06/07/2014, 19:20
Phát triển web với PHP và MySQL - p 14 pot
... 7842 CH04 3/6/01 3:41 PM Page 111 The length value is optional and represents the point at which PHP will stop replacing. If you don’t supply this value, the string will be replaced from start ... (strlen($email) < 6) { echo “That email address is not valid”; exit; // finish execution of PHP script } Clearly, this is a very simplistic way of validating this information. We will look at better ... string. Introduction to Regular Expressions PHP supports two styles of regular expression syntax: POSIX and Perl. The POSIX style of regular expression is compiled into PHP by default, but you can use the...
Ngày tải lên: 06/07/2014, 19:20
Phát triển web với PHP và MySQL - p 15 docx
... extensions. PHP Tags and require() In our example our reusable file (reusable .php) was written as follows: <? echo “Here is a very simple PHP statement.<BR>”; ?> We placed the PHP code ... placed the PHP code within the file in PHP tags. You will need to do this if you want PHP code within a required file treated as PHP code. If you do not open a PHP tag, your code will just be treated ... type in a script including PHP statements, text, HTML tags, PHP functions, or PHP classes. These statements work similarly to the Server Side Includes offered by many Web servers and #include statements...
Ngày tải lên: 06/07/2014, 19:20