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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, 5192👍, 0💬

How To Define a User Function
How To Define a User Function? - PHP Script Tips - Creating Your Own Functions You can define a user function anywhere in a PHP script using the function statement like this: "function name() {...}". Here is a PHP script example on how to define a user function: &lt;?php function msg() { print("...
2007-04-24, 5190👍, 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, 5190👍, 0💬

How To Create a New Database
How To Create a New Database? - MySQL FAQs - PHP Connections and Query Execution A database in a MySQL server is a logical container used to group tables and other data objects together as a unit. If you are a the administrator of the server, you can create a new databases using the CREATE DATABASE ...
2007-05-10, 5189👍, 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, 5189👍, 0💬

How Variables Are Passed Through Arguments
How Variables Are Passed Through Arguments? - PHP Script Tips - Creating Your Own Functions Like more of other programming languages, variables are passed through arguments by values, not by references. That means when a variable is passed as an argument, a copy of the value will be passed into the ...
2007-04-24, 5188👍, 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, 5187👍, 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, 5182👍, 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, 5181👍, 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, 5179👍, 0💬

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, 5178👍, 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, 5178👍, 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, 5168👍, 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, 5162👍, 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, 5159👍, 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, 5157👍, 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, 5157👍, 0💬

How To Return a Reference from a Function
How To Return a Reference from a Function? - PHP Script Tips - Creating Your Own Functions To return a reference from a function, you need to: Add the reference operator "&" when defining the function. Add the reference operator "&" when invoking the function. Here is a PHP script on how to ...
2007-04-14, 5154👍, 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, 5153👍, 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, 5152👍, 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, 5151👍, 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, 5151👍, 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, 5145👍, 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, 5143👍, 0💬

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