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Tài liệu PHP and MySQL by Example- P1 docx

... of PHP and MySQL, to make static HTML pages dynamic. The labs and exercises have been tested by myself, Marko, and our students. I think you will find this “by Example book a helpful and complete ... versions and/ or custom covers and content particular to your business, training goals, marketing focus, and branding interests. For more information, please contact: U.S. Corporate and Government ... 2.4.1. PHP on the Command Line UNIX and Linux users are normally more familiar with working at the command line than Windows or Mac users. Executing PHP at the command line requires that you...

Tài liệu PHP and MySQL by Example- P2 pdf

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... variable that will be assigned to the new variable; for example, $ref = & $old;. See Example 4.14 and it’s output in Figure 4.17. Example 4.14. <html><head><title>References</title></head> ... $husband = "Honey"; // Assign the value "Honey" to $husband 2 $son = & $husband; // Assign a reference to $son. // Now $son is a reference or alias // for $husband. ... him $husband, and his Mom calls him $son. <br />"; 4 $son = "Lazy"; // Assign a new value to $son; // $husband gets the same value 5 print "Now his wife and mother...

Tài liệu PHP and MySQL by Example- P3 ppt

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... $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 ... [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” ... logical operators are the logical AND, logical OR, and logical NOT. The symbol for AND is &&, the symbol for OR is ||. The English version for && is and and for || is or. The only difference...

Tài liệu PHP and MySQL by Example- P4 pptx

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... 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 “b” is 98, and so on. If you compare “A” to “a,” ... “Files and Directories.” 6.2.2. Formatting Numbers and Money Putting commas or spaces in numbers or printing out the dollar value of money causes a number to become a string and can be handled ... ( resource handle, string format [, mixed args [, mixed ]] ) % Example: sprintf($filehandle, "%04d-%02d-%02d", $year, $month, $day); For more information on streams and files,...

Tài liệu PHP and MySQL by Example- P5 pdf

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... entities, special symbols starting with an ampersand and terminated with a semicolon; for example, the < and > symbols are written as < and >. If the user enters text that contains ... 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 ... size of the array; for example, if an array has five values, its last index value would be four. See Example 8.5. If the array has been assigned both a key and a value, and the key is a string,...

Tài liệu PHP and MySQL by Example- P6 ppt

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... $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]]; ... 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); Example: $colors=array("red","green","blue","yellow"); ... 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() function...

Tài liệu PHP and MySQL by Example- P7 doc

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... 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). ... 8.43. Selecting two random elements from an array. Output from Example 8.36. !Figure 8.44. Refreshing the screen for two more random elements. Shuffling a Numeric Array (Randomizing the Values) ... 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()...

Tài liệu PHP and MySQL by Example- P8 doc

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... quotes and backslashes. The PHP script in Example 10.5 demonstrates how the stripslashes() function handles this input. Figure 10.10. The user enters quotes and backslashes. & Example ... require() and include(), the require_once() and include_once() statements, respectively, include and evaluate the specified file during the execution of the script, but require_once() and include_once() ... the URL and fails. &&10.3.7. Form Parameters and the Long (Old) Style As of PHP 5.0.0, these long predefined variables can be disabled with the register_long_arrays directive and are...

Tài liệu PHP and MySQL by Example- P9 pptx

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... 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. 3 User%gets%read %and% write,%group %and% others%get%read. ... Chapter 11, “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 ... 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,...

Tài liệu PHP and MySQL by Example- P10 pptx

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... upbeat. $new_string=preg_replace("/(Peace) and (War)/i", "$2 and $1", "Peace and War"); $new_string: "War and Peace" $new_string=preg_replace("/5/e", ... site and causing havoc. The is_writable() (or is_writeable) function returns true if a file exists and is writable, and false if it is not. Format bool is_writable ( string filename ) % Example: ... 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 removing...

Tài liệu PHP and MySQL by Example- P11 docx

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... 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 \W represent a single word character and a single nonword character, ... pattern love, and would match glove, clove, or love, but not clover. /\blove\b matches a word beginning and ending with the pattern love, and would match only the word love. Example 12.16. ... text is enclosed in parentheses and prepended with ?<=. The text is not captured as in the previous examples, but is only used as criteria for the search. Example 12.41. _29*!a>*6b!(The...

Tài liệu PHP and MySQL by Example- P12 doc

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... rows in set (0.00 sec) The AND and OR Operators AND and OR operators are used in a WHERE clause to further qualify what data you want to select from a table. The AND operator tests one or more ... 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 ... connection, version, how to encrypt and encode strings, display date and time, and so on. Examples follow the table. Table 13.3. MySQL Functions Function Example What&It&Returns database()...