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What Happens If an Expected Input Field Was Not Submitted
What Happens If an Expected Input Field Was Not Submitted? - PHP Script Tips - Processing Web Forms Obviously, if an expected input field was not submitted, there will no entry in the $_REQUEST array for that field. You may get an execution error, if you are not checking the existence of the expecte... 2007-04-23, 5657👍, 0💬

How To Retrieve the Submitted Form Data
How To Retrieve the Submitted Form Data? - PHP Script Tips - Processing Web Forms The best way to retrieve the form data submitted by your visitor is to use the $_REQUEST array. The keys in this array will be the field names defined in form. The values in this array will be the values entered by you... 2007-04-23, 5650👍, 0💬

What Are Form Input HTML Tags
What Are Form Input HTML Tags? - PHP Script Tips - Processing Web Forms HTML tags that can be used in a form to collect input data are: &lt;SUBMIT ...> - Displayed as a button allow users to submit the form. &lt;INPUT TYPE=TEXT ...> - Displayed as an input field to take an input string. &... 2007-04-23, 5641👍, 0💬

How To Use an Array as a Stack
How To Use an Array as a Stack? - PHP Script Tips - PHP Built-in Functions for Arrays A stack is a simple data structure that manages data elements following the first-in-last-out rule. You use the following two functions together to use an array as a stack: array_push($array, $value) - Pushes a new... 2007-04-21, 5637👍, 0💬

How To Get the ID Column Auto-Incremented
How To Get the ID Column Auto-Incremented? - PHP Script Tips - Working with MySQL Database Many tables require an ID column to assign a unique ID number for each row in the table. For example, if you have a table to hold forum member profiles, you need an ID number to identify each member. To allow ... 2007-04-14, 5636👍, 0💬

How To Split a String into an Array of Substring
How To Split a String into an Array of Substring? - PHP Script Tips - PHP Built-in Functions for Arrays There are two functions you can use to split a string into an Array of Substring: explode(substring, string) - Splitting a string based on a substring. Faster than split(). split(pattern, string) ... 2007-04-22, 5634👍, 0💬

How To Join Multiple Strings Stored in an Array into a Single String
How To Join Multiple Strings Stored in an Array into a Single String? - PHP Script Tips - PHP Built-in Functions for Arrays If you multiple strings stored in an array, you can join them together into a single string with a given delimiter by using the implode() function. Here is a PHP script on how ... 2007-04-21, 5621👍, 0💬

How To Tell If a Session Is New
How To Tell If a Session Is New? - PHP Script Tips - Understanding and Using Sessions There is not direct way to tell if a session is new or old. But you can design your site to have a required session value in all sessions. Then you can check the existence of this value in a session to determine if... 2007-04-17, 5620👍, 0💬

How To Pad an Array with the Same Value Multiple Times
How To Pad an Array with the Same Value Multiple Times? - PHP Script Tips - PHP Built-in Functions for Arrays If you want to add the same value multiple times to the end or beginning of an array, you can use the array_pad($array, $new_size, $value) function. If the second argument, $new_size, is pos... 2007-04-21, 5618👍, 0💬

How To Reformat a Paragraph of Text
How To Reformat a Paragraph of Text? - PHP Script Tips - PHP Built-in Functions for Strings You can wordwrap() reformat a paragraph of text by wrapping lines with a fixed length. Here is a PHP script on how to use wordwrap(): &lt;?php $string = "TRADING ON MARGIN POSES ADDITIONAL RISKS AND IS NO... 2007-04-21, 5617👍, 0💬

How To Sort an Array by Keys
How To Sort an Array by Keys? - PHP Script Tips - PHP Built-in Functions for Arrays Sorting an array by keys can be done by using the ksort() function. It will re-order all pairs of keys and values based on the alphanumeric order of the keys. Here is a PHP script on how to use ksort(): &lt;?php ... 2007-04-21, 5591👍, 0💬

How To Connect to MySQL Severs with User Accounts
How To Connect to MySQL Severs with User Accounts? - MySQL FAQs - PHP Connections and Query Execution If you want to connect a MySQL server with user account name and password, you need to call mysql_connect() with more parameters like this: $con = mysql_connect($server, $username, $password); If yo... 2007-05-10, 5583👍, 0💬

How To Read One Line of Text from a File
How To Read One Line of Text from a File? - PHP Script Tips - Reading and Writing Files If you have a text file with multiple lines, and you want to read those lines one line at a time, you can use the fgets() function. It reads the current line up to the "\n" character, moves the file pointer to th... 2007-04-22, 5581👍, 0💬

What Are the Input Values of SELECT Tags
What Are the Input Values of SELECT Tags? - PHP Script Tips - Processing Web Forms SELECT tags are used in forms to provide dropdown lists. Entris in a dropdown list are defined by OPTION tags, which can provide input values in two ways: Implicit value - Provided as &lt;OPTION>input_value& ;lt... 2007-04-23, 5575👍, 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? - MySQL FAQs - Managing Tables and Running Queries with PHP Scripts There are two functions you can use the get the number of rows selected or affected by a SQL statement: mysql_num_rows($res) - Returns the number of rows selecte... 2007-05-10, 5569👍, 0💬

How To Convert a Character to an ASCII Value
How To Convert a Character to an ASCII Value? - PHP Script Tips - PHP Built-in Functions for Strings If you want to convert characters to ASCII values, you can use the ord() function, which takes the first charcter of the specified string, and returns its ASCII value in decimal format. ord() complem... 2007-04-21, 5564👍, 0💬

How To Write a String to a File with a File Handle
How To Write a String to a File with a File Handle? - PHP Script Tips - Reading and Writing Files If you have a file handle linked to a file opened for writing, and you want to write a string to the file, you can use the fwrite() function. It will write the string to the file where the file pointer ... 2007-04-23, 5561👍, 0💬

What Is the Timeout Period on Session Values
What Is the Timeout Period on Session Values? - PHP Script Tips - Understanding and Using Sessions The PHP engine has no direct settings on session timeout period. But it has a session garbage collection mechanism that you can set to remove those special files containing session values. There are 3 ... 2007-04-18, 5555👍, 0💬

How To Delete an Existing Rows in a Table
How To Delete an Existing Rows in a Table? - PHP Script Tips - Working with MySQL Database If you want to remove a row from a table, you can use the DELETE statement with a WHERE clause to identify the row. The following sample script deletes one row: &lt;?php include "mysql_connection.php"; $sq... 2007-04-14, 5543👍, 0💬

How To Break a File Path Name into Parts
How To Break a File Path Name into Parts? - PHP Script Tips - Working with Directoris and Files If you have a file name, and want to get different parts of the file name, you can use the pathinfo() function. It breaks the file name into 3 parts: directory name, file base name and file extension; and... 2007-04-23, 5521👍, 0💬

What Is a Result Set Object
What Is a Result Set Object? - MySQL FAQs - Managing Tables and Running Queries with PHP Scripts A result set object is a logical representation of data rows returned by mysql_query() function on SELECT statements. Every result set object has an internal pointer used to identify the current row in t... 2007-05-10, 5508👍, 0💬

How To Submit Values without a Form
How To Submit Values without a Form? - PHP Script Tips - Processing Web Forms If you know the values you want to submit, you can code the values in a hyper link at the end of the URL. The additional values provided at the end of a URL is called query string. There are two suggestions on how to use q... 2007-04-22, 5506👍, 0💬

How To Turn on mysql Extension on the PHP Engine
How To Turn on mysql Extension on the PHP Engine? - MySQL FAQs - PHP Connections and Query Execution The "mysql" API extension is provided as "php_mysql.dll" for Windows system. Your PHP binary download package should have "php_mysql.dll" included. No need for another download. But you need to check... 2007-05-10, 5494👍, 0💬

How to Loop through an Array
How to Loop through an Array? - PHP Script Tips - Understanding PHP Arrays and Their Basic Operations The best way to loop through an array is to use the "foreach" statement. There are two forms of "foreach" statements: foreach ($array as $value) {} - This gives you only one temporary variable to ho... 2007-04-20, 5490👍, 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