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What is differece between echo and printf in php
What is differece between echo and printf in php PHP Echo Vs Print Diagram <?php print "Hello World! "; echo "Hello World! "; // The above outputs the text "Hello World!" on two separate lines. // Notice they are identical in output! print ("Hello World! "); echo ("Hello World! "); // The above a... 2011-08-01, 5234👍, 0💬

How To Send a Cookie to the Browser
How To Send a Cookie to the Browser? - PHP Script Tips - Understanding and Managing Cookies If you want to sent a cookie to the browser when it comes to request your PHP page, you can use the setcookie( ) function. Note that you should call setcookie() function before any output statements. The foll... 2007-04-25, 5233👍, 0💬

What Are the Special Characters You Need to Escape in Double-Quoted Stings
What Are the Special Characters You Need to Escape in Double-Quoted Stings? - PHP Script Tips - Understanding String Literals and Operations There are two special characters you need to escape in a double-quote string: the double quote (") and the back slash (\). Here is a PHP script example of doub... 2007-04-20, 5233👍, 0💬

How To Concatenate Two Strings Together
How To Concatenate Two Strings Together? - PHP Script Tips - Understanding String Literals and Operations You can use the string concatenation operator (.) to join two strings into one. Here is a PHP script example of string concatenation: &lt;?php echo 'Hello ' . "world!\n"; ?&gt; This scri... 2007-04-20, 5231👍, 0💬

How To Drop an Existing Database
How To Drop an Existing Database? - MySQL FAQs - PHP Connections and Query Execution If want to drop an existing database from the MySQL server, you can use the DROP DATABASE statement. Here is a good example of dropping an existing database: $con = mysql_connect('localhost:8888' ,'dev', 'iyf'); $sq... 2007-05-10, 5227👍, 0💬

How To Query Tables and Loop through the Returning Rows
How To Query Tables and Loop through the Returning Rows? - PHP Script Tips - Working with MySQL Database The best way to query tables and loop through the returning rows is to run the SELECT statement with the catch the mysql_query() function, catch the returning object as a result set, and loop thr... 2007-04-19, 5227👍, 0💬

How To Copy a File
How To Copy a File? - PHP Script Tips - Working with Directoris and Files If you have a file and want to make a copy to create a new file, you can use the copy() function. Here is a PHP script example on how to use copy(): &lt;?php unlink("/temp/myPing.exe"); copy("/windows/system32/ping.e xe","... 2007-04-23, 5225👍, 0💬

How To Delete Cookie Files on Your Computer
How To Delete Cookie Files on Your Computer? - PHP Script Tips - Understanding and Managing Cookies A simple way to delete cookie files on your computer is to use the function offered by the IE browser. The following tutorial exercise shows you how to delete cookie files created by IE: Open IE (Inte... 2007-04-24, 5224👍, 0💬

How To Turn On the Session Support
How To Turn On the Session Support? - PHP Script Tips - Understanding and Using Sessions The session support can be turned on automatically at the site level, or manually in each PHP page script: Turning on session support automatically at the site level: Set session.auto_start = 1 in php.ini. Turni... 2007-04-18, 5224👍, 0💬

How To Retrieve Values from the Current Session
How To Retrieve Values from the Current Session? - PHP Script Tips - Understanding and Using Sessions If you know some values have been saved in the session by an other script requested by the same visitor, you can retrieve those values back by using the pre-defined associative array called $_SESSIO... 2007-04-18, 5223👍, 0💬

How To Set a Persistent Cookie
How To Set a Persistent Cookie? - PHP Script Tips - Understanding and Managing Cookies If you want to set a persistent cookie, you can use the setcookie() function with an extra parameter to specify its expiration time. To follow sample script sets 2 persistent cookies to be expired within 7 days: s... 2007-04-25, 5221👍, 0💬

How To Read the Entire File into a Single String
How To Read the Entire File into a Single String? - PHP Script Tips - Reading and Writing Files If you have a file, and you want to read the entire file into a single string, you can use the file_get_contents() function. It opens the specified file, reads all characters in the file, and returns them... 2007-04-22, 5221👍, 0💬

How To Get the Number of Characters in a String
How To Get the Number of Characters in a String? - PHP Script Tips - PHP Built-in Functions for Strings You can use the "strlen()" function to get the number of characters in a string. Here is a PHP script example of strlen(): &lt;?php print(strlen('It\'s Friday!')); ?&gt; This script will p... 2007-04-22, 5209👍, 0💬

How To Support Hidden Form Fields
How To Support Hidden Form Fields? - PHP Script Tips - Processing Web Forms Hidden fields are special fields in a form that are not shown on the Web page. But when the form is submitted, values specified in the hidden fields are also submitted to the Web server. A hidden field can be specified with ... 2007-04-22, 5208👍, 0💬

Can You Specify the "new line" Character in Single-Quoted Strings
Can You Specify the "new line" Character in Single-Quoted Strings? - PHP Script Tips - Understanding String Literals and Operations You can not specify the "new line" character in a single-quoted string. If you don't believe, try this script: &lt;?php echo '\n will not work in single quoted stri... 2007-04-20, 5206👍, 0💬

How To Return an Array from a Function
How To Return an Array from a Function? - PHP Script Tips - Creating Your Own Functions You can return an array variable like a normal variable using the return statement. No special syntax needed. Here is a PHP script on how to return an array from a function: &lt;?php function powerBall() { $a... 2007-04-24, 5199👍, 0💬

How To Read a Directory One Entry at a Time
How To Read a Directory One Entry at a Time? - PHP Script Tips - Working with Directoris and Files If you want to read a directory one entry at a time, you can use opendir() to open the specified directory to create a directory handle, then use readdir() to read the directory contents through the di... 2007-04-23, 5199👍, 0💬

How To Get the Technical Specifications for File Upload
How To Get the Technical Specifications for File Upload? - PHP Script Tips - Uploading Files to Web Servers File upload technical specifications is provided in "Form-based File Upload in HTML - RFC 1867". You can get a copy from http://www.ietf.org/rfc/rfc186 7.txt. 2007-04-19, 5195👍, 0💬

How Cookies Are Transported from Servers to Browsers
How Cookies Are Transported from Servers to Browsers? - PHP Script Tips - Understanding and Managing Cookies Cookies are transported from a Web server to a Web browser in the header area of the HTTP response message. Each cookie will be included in a separate "Set-Cookie:" header line in the followi... 2007-04-24, 5194👍, 0💬

How To Return a Value Back to the Function Caller
How To Return a Value Back to the Function Caller? - PHP Script Tips - Creating Your Own Functions You can return a value to the function caller by using the "return $value" statement. Execution control will be transferred to the caller immediately after the return statement. If there are other stat... 2007-04-24, 5194👍, 0💬

How To Create a Table
How To Create a Table? - PHP Script Tips - Working with MySQL Database If you want to create a table, you can run the CREATE TABLE statement as shown in the following sample script: &lt;?php include "mysql_connection.php"; $sql = "CREATE TABLE fyi_links (" . " id INTEGER NOT NULL" . ", url VARCH... 2007-04-19, 5194👍, 0💬

How To Get the Number of Rows Selected or Affected by a SQL Statement
How To Get the Number of Rows Selected or Affected by a SQL Statement? - PHP Script Tips - Working with MySQL Database There are two functions you can use the get the number of rows selected or affected by a SQL statement: mysql_num_rows($rs) - Returns the number of rows selected in a result set obj... 2007-04-19, 5190👍, 0💬

How To Get MySQL Statement Execution Errors
How To Get MySQL Statement Execution Errors? - MySQL FAQs - PHP Connections and Query Execution When you execute a MySQL statement with mysql_query(), and the statement failed, mysql_query() will return the Boolean value FALSE. This is good enough to tell that there is something wrong with that stat... 2007-05-10, 5189👍, 0💬

How To Select an Exiting Database
How To Select an Exiting Database? - PHP Script Tips - Working with MySQL Database The first thing after you have created a connection object to the MySQL server is to select the database where your tables are locate, by using the mysql_select_db() function. If your MySQL server is offered by your W... 2007-04-18, 5184👍, 0💬

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.NET C C++ CSS DBA General HTML Java JavaScript JSP JUnit MySQL Networking Oracle Perl Perl PHP PL/SQL RSS Software QA SQL Server Struts Unix Windows XHTML XML