learning php and mysql step by step

Ngày tải lên: 24/01/2014, 15:47

Ngày tải lên: 24/01/2014, 15:00

... to Zoom in and out of a Drawing To Zoom in and out of a Drawing Step 1 !" You can work with this zooming option by opening the Zoom fly-out, or click the Zoom tool. Step 2 !" You ... Step 1 !" At the beginning, you have to click on the Tools tab from the menu bar and choose Options. Step 2 !" After that double-click on the Workspace and Display. Step ... Pre-defined Shape Step 1 !" Open the Perfect shapes fly-out, and click one of the tools. Step 2 !" Then, click a shape at perfect shapes picker. Step 3 !" Drag in...

Ngày tải lên: 12/12/2013, 09:15

... Why!was !PHP! developed,!what!it!is!used!for, !and! where!can!you!get!it?! 4. What!is !MySQL! used!for !and! where!can!you!get!it?! 5. What!are!the!benefits!of!using !PHP! and! MySQL? ! 6. Why!do !PHP! and! MySQL! work!well!together?! ... server accepts .php, .php3 , and .phtml as valid extensions to PHP script names. From the Apache httpd.conf file: AddType application/x-httpd -php .php AddType application/x-httpd -php .php3 AddType ... uses PHP. We will learn how to create and execute simple PHP scripts both from the browser and at the command line. We will talk about built-in functions and how to use them by viewing the PHP...

Ngày tải lên: 24/12/2013, 03:17

... bgcolor="yellow"><font size="+1"> < ?php 1 $husband = "Honey"; // Assign the value "Honey" to $husband 2 $son = & $husband; // Assign a reference to $son. // Now ... covers PHP s rich set of operators and how to use them to manipulate data; for example, how to perform arithmetic on numbers, compare strings and numbers, test equality, combine expressions, and ... fact, doing so will produce an error. With PHP you would simply say: $n = 5; $x = 44.5; ! and PHP will figure out what type of data is being stored in $n and $x. 4.2.2. Valid Names Variable...

Ngày tải lên: 24/12/2013, 03:17

... $x and $y and $z; echo "$x and $y and $z <em>yields</em> " . (int)$result .".\n<br />"; 4 $result = ($x and $y and $z); echo "($x and $y and ... conditions, and both conditions must be met. You must have the money and I must have the time. PHP uses the symbol && [2] to represent the word AND. This operator is called the logical AND ... [2] The single & is a bitwise AND and evaluates both of its operands even if the first one is false. The | is the bitwise OR and evaluates both operands as well. See “Bitwise Operators”...

Ngày tải lên: 24/12/2013, 03:17

... become a string and can be handled with printf(). PHP also provides two special functions, the number_format() function and the money_format() function. The number_format() Function PHP provides ... Because PHP uses the ASCII collating sequence, an uppercase “A” is represented as decimal 65 and an uppercase “B” as decimal 66, and so on. On the other hand, a lowercase “a” is 97 and a lowercase ... sprintf($filehandle, "%04d-%02d-%02d", $year, $month, $day); For more information on streams and files, see Chapter 11, “Files and Directories.” 6.2.2. Formatting Numbers and Money...

Ngày tải lên: 24/12/2013, 03:17

Ngày tải lên: 02/01/2014, 09:21

Ngày tải lên: 02/01/2014, 10:15

... special significance and those characters are represented by HTML entities, special symbols starting with an ampersand and terminated with a semicolon; for example, the < and > symbols are ... The!HTML!submit!input!type!is!given!a!name,!submit_fare,!that!will!be!used!in! the!following !PHP! script. 4 The!opening !PHP! tag!tells !PHP! to!start!processing. 5 Now!we!are!looking!at!the !PHP! instructions.!If!the!user!pressed!the!submit! button,!this!file!will!execute. !PHP! will!store!the!names!of!the!input!devices!in! variables,!$age !and! $submit_fare.!This!conditional!expression!tests!to!see!if! those!variables!were!set.!If!they!weren’t!set,!then!the!form!was!either!not! submitted!or!the!user!left!it!empty,!or!both. ... nested loops is to display data in rows and columns where one loop handles the rows and the other handles the columns. The outside loop is initialized and tested; the inside loop then iterates...

Ngày tải lên: 21/01/2014, 09:20

... $colors=array("red","green","blue","yellow"); $random= array_rand($colors); // Returns a random color $random= array_rand($colors, 2); // Returns two random colors print $colors[$random_keys[0]]; print $colors[$random_keys[1]]; ... Sorting by keys. Output from Example 8.34. 8.1.12. Randomizing an Array Randomizing an array means that you can select the keys or the values in random order. Randomizing the Keys The array_rand() ... to seed (give it a starting random point) the random number as it is now done automatically. Format random_key= array_rand ( array_name ); array_of_keys = array_rand( array_name, integer);...

Ngày tải lên: 21/01/2014, 09:20

... Arrays !and! Strings explode() Splits!up!a!string !by! a!specified!delimiter !and! creates !and! array!of!strings!(see!page!276). implode() Glues!the!elements!of!an!array!together !by! some!delimiter !and! creates!a!string!(see!page!276). ... Adding, and Changing Elements) PHP makes it easy to modify both numeric and associative arrays by providing a number of built-in functions to add new elements, remove existing elements and/ or ... the random number generator (give it a different starting point) with srand(), but now that is done automatically. To randomize a selected number of elements of an array, see the array_rand()...

Ngày tải lên: 21/01/2014, 09:20

... in the php. ini file (and it is by default), most functions that return data from any external source such as databases and text files will have quotes escaped with a backslash. From the php. ini ... action="/phpforms/form1 .php& quot; method="GET"> <form action="/phpforms/form1 .php& quot;> // No method specified, default is GET <form action="/phpforms/form1 .php& quot; method="POST"> ... require('C:\pub\library\file .php& apos;) or include('/usr/htdocs/file .php& apos;). Just like require() and include(), the require_once() and include_once() statements, respectively, include and evaluate...

Ngày tải lên: 21/01/2014, 09:20

... “Files and Directories,” we talk about files and how to open and close them, read from them and write to them, copy them, lock them, upload them, compress them, and more, all from within a PHP ... Explanation 1 Grant%read,%write, %and% execute%to%the%owner,%read %and% execute%to%the%group %and% the%others%(world). 2 Set%all%to%read,%write, %and% execute%on%all%files %and% in%the%current%working% directory. ... the filehandle, PHP provides the fopen() function. This function opens a file and returns a filehandle, and if it fails, returns false. It normally takes two arguments: a filename and a mode, the...

Ngày tải lên: 21/01/2014, 09:20

... argument and returns TRUE if the filename exists and is readable. If the PHP script is being executed by the server, the server’s permissions (usually limited) determine whether or not the PHP program ... to manipulate and extract text. It supports regular expressions and regular expression metacharacters to make pattern matching relatively easy and quick. PHP has mimicked Perl by providing special ... Suppressing PHP errors and printing your own. Output from Example 11.21. 11.2.10. Creating, Copying, Renaming, and Deleting Files Table 11.8 lists functions for creating, copying, renaming, and...

Ngày tải lên: 21/01/2014, 09:20

... ! PHP provides additional metasymbols to represent a character class. The symbols \d and \D represent a single digit and a single nondigit, respectively (the same as [0-9] and [^0-9]); \w and ... group consisting of a word character, followed by zero or more word characters and a dash, and then a dot. Because the parentheses are followed by a +, the group can be repeated one or more times. ... occurrences; two numbers separated by a comma (e.g., {3,10}), represents an inclusive range; and a number followed by a comma (e.g., {4,}), represents a number of characters and any amount after that....

Ngày tải lên: 21/01/2014, 09:20

... 13.3.1. MySQL Command-Line Options The mysql command-line client ships with the MySQL installation and is universally available. It is a mysql. exe program located in the bin folder of your MySQL ... Linux, Macintosh, and Windows. PHP and MySQL fit very well together. They are both reasonably easy to use, fairly scalable and reliable and have a good set of features for small- and medium-sized ... User Tools The phpMyAdmin Tool The phpMyAdmin tool (see Figures 13.13 and 13.14) is written in PHP to handle the administration of MySQL over the Web. It is used to create and drop databases,...

Ngày tải lên: 21/01/2014, 09:20

... introduced you to the way PHP and MySQL work together. From the PHP program, you learned to connect to a MySQL database and use PHP built-in functions to perform SQL queries and get back results ... orders and product information for that customer from the database and display selected data on the Web page directly from your PHP script. Now you will learn how to integrate PHP and MySQL. PHP ... The!SQL!statement!is!created!here.!It!is!assigned!to!a!variable,!called!$query.!Notice!that! the!SQL!string!is!just!like!any!other!SQL!statement!you!would!type!in!the !MySQL! Query! Browser!or!at!the !mysql! command!line.!It!can!also!contain!explicit!values!or!variables! evaluated !by !PHP! before!sending!the!query!to!the!database. 4 The !mysql_ query()!function!is!executed !and! will!return!true!if!the!query!is!successful! and! false!if!not....

Ngày tải lên: 21/01/2014, 09:20

... #$%!ob_end_flush()!&36+*',6!')!6,*!6%+%))1(.<!@3*!')!3)%8!$%(%!*,!&23)$!,3*!*$%! @3&&%()!168!%68!*$%!,3*43*!@3&&%('69!&,(!*$')!)%))',65 Output Buffering and php. ini If you want buffering set for all your PHP scripts, you can enable the php. ini directive output_buffering. If you do, every PHP script will behave as if ... session.use_trans_sid ! and set it to 1, save the changes, and restart your Web server. Then the session ID will be added to all relative links within your PHP pages. Notice that by default this feature ... loading one by one, PHP locks the session until each page has finished loading. This feature prevents two pages from writing out session data concurrently to the $_SESSION array and thereby corrupting...

Ngày tải lên: 21/01/2014, 09:20

Ngày tải lên: 26/01/2014, 09:20