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Number of Rows Affected by a SQL Statement in PHP
How To Get the Number of Rows Selected or Affected by a SQL Statement in PHP? 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 object returned from SELECT statement. mysql... 2016-10-20, ∼2442🔥, 0💬

How Sessoion IDs Are Transferred in PHP
How Session IDs Are Transferred on Your Web Server in PHP? As you know there are two options the PHP engine can use to transfer session IDs to the client browsers. But how to do know which option is your PHP engine is using? The PHP sample script will help you to find out: &lt;?php session_start... 2016-10-25, ∼2440🔥, 0💬

Including Array Elements in Double-Quoted Strings in PHP
How Many Ways to Include Array Elements in Double-Quoted Strings? There are 2 formats to include array elements in double-quoted strings: "part 1 $array[key] part 2" - This is called simple format. In this format, you can not specify the element key in quotes. "part 1 {$array['key']} part 2" - This ... 2016-10-13, ∼2437🔥, 0💬

Including Variables in Double-Quoted Strings in PHP
How To Include Variables in Double-Quoted Strings? Variables included in double-quoted strings will be interpolated. Their values will be concatenated into the enclosing strings. For example, two statements in the following PHP script will print out the same string: &lt;?php $variable = "and"; e... 2016-10-13, ∼2432🔥, 0💬

Testing the Session Garbage Collection Process in PHP
How To Test the Session Garbage Collection Process in PHP? In order to test the session garbage collection process, you need to change the settings to expire session variables in 10 seconds and run the process on every request: session.gc_probability = 1 session.gc_divisor = 1 session.gc_maxlifetime... 2016-10-24, ∼2430🔥, 0💬

Opening a File for Writing in PHP
How To Open a File for Writing in PHP? If you want to open a new file and write date to the file, you can use the fopen($fileName, "w") function. It creates the specified file, and returns a file handle. The second argument "w" tells PHP to open the file for writing. Once the file is open, you can u... 2016-12-02, ∼2428🔥, 0💬

Verifying PHP Installation
How To Verify Your PHP Installation? PHP provides two execution interfaces: Command Line Interface (CLI) and Common Gateway Interface (CGI). If PHP is installed in the \php directory on your system, you can try this to check your installation: Run "\php\php -v" command to check the Command Line Inte... 2016-10-13, ∼2424🔥, 0💬

Supporting Multiple Submit Buttons in PHP
How To Support Multiple Submit Buttons in PHP? Sometimes, you may need to give visitors multiple submit buttons on a single form to allow them to submit the form for different purposes. For example, when you show your customer a purchase order in a Web form, you may give your customer 3 submit butto... 2016-11-08, ∼2421🔥, 0💬

Removing a Cookie in PHP
How To Remove a Cookie in PHP? Once a cookie is sent from the server to the browser, there is no direct way for the server to ask the browser to remove the cookie. But you can use the setcookie() function to send the same cookie to browser with a negative expiration time, which will cause the browse... 2016-11-03, ∼2420🔥, 0💬

Defining a User Function in PHP
How To Define a User Function? in PHP? 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("Hello world!\n"); } msg(); ?&gt; Thi... 2016-12-28, ∼2418🔥, 0💬

Saving Values in the Session in PHP
How To Save Values to the Current Session in PHP? When session is turned on, a session will be automatically created for you by the PHP engine. If you want to save any values to the session, you can use the pre-defined associative array called $_SESSION. The following PHP script shows you how to sav... 2023-12-25, ∼2414🔥, 1💬

Looping through an Array in PHP
How to Loop through an Array in PHP? The best way to loop through an array is to use the "foreach" statement. There are two forms of "foreach" statements: foreach ($array as $value) {} - This gives you only one temporary variable to hold the current value in the array. foreach ($array as $key=&g... 2017-02-03, ∼2414🔥, 0💬

Options to Transfer Session IDs in PHP
What Are Options to Transfer Session IDs in PHP? Once a new session is created, its session ID must be transferred to the client browser and included in the next client request, so that the PHP engine can find the same session created by the same visitor. The PHP engine has two options to transfer t... 2016-10-26, ∼2414🔥, 0💬

PHP Configuration Setting File
Where Are PHP Configuration Settings Stored? PHP stores configuration settings in a file called php.ini in PHP home directory. You can open it with any text editor to your settings.     ⇒ Running a PHP Script ⇐ Verifying PHP Installation ⇑ Downloading and Installing PHP ⇑⇑ PHP Tutorials 2016-10-13, ∼2412🔥, 0💬

Writing an Array to a File without File Handle in PHP
How To Write an Array to a File without a File Handle in PHP? If you have an array, want to write it to a file, and you don't want to open the file with a file handle, you can use the file_put_contents(). It opens the specified file, writes all values from the specified string, closes the file, and ... 2016-11-27, ∼2393🔥, 0💬

Reading a Text File to an Array in PHP
How To Read a Text File into an Array in PHP? If you have a text file with multiple lines, and you want to read those lines into an array, you can use the file() function. It opens the specified file, reads all the lines, puts each line as a value in an array, and returns the array to you. Here is a... 2016-12-04, ∼2389🔥, 0💬

Processing Uploaded Files in PHP
How To Process Uploaded Files in PHP? How to process the uploaded files? The answer is really depending on your application. For example: You can attached the outgoing emails, if the uploaded files are email attachments. You can move them to user's Web page directory, if the uploaded files are user'... 2016-10-17, ∼2387🔥, 0💬

Creating an Array in PHP
How To Create an Array in PHP? You can create an array using the array() constructor. When calling array(), you can also initialize the array with pairs of keys and values. Here is a PHP script on how to use array(): &lt;?php print("Empty array:\n"); $emptyArray = array(); print_r($emptyArray); ... 2016-10-15, ∼2385🔥, 0💬

Running a SQL Statement in PHP
How To Run a SQL Statement in PHP? You can run any types of SQL statements through the mysql_query() function. It takes the SQL statement as a string and returns different types of data depending on the SQL statement type and execution status: Returning FALSE, if the execution failed. Returning a re... 2016-10-20, ∼2377🔥, 0💬

Defining an Argument as a Reference in PHP
Can You Define an Argument as a Reference Type? in PHP? You can define an argument as a reference type in the function definition. This will automatically convert the calling arguments into references. Here is a PHP script on how to define an argument as a reference type: &lt;?php function ref_s... 2016-12-24, ∼2375🔥, 0💬

Installing MySQL Server in PHP
How To Install MySQL Server in PHP? MySQL is an open source database management system developed by MySQL AB, http://www.mysql.com. You can download a copy and install it on your local computer. Here is how you can do this: Go to http://dev.mysql.com/downloads /mysql/5.0.html.Select the "Windows" an... 2016-10-22, ∼2369🔥, 0💬

Converting Strings to Numbers in PHP
How To Convert Strings to Numbers? In a numeric context, PHP will automatically convert any string to a numeric value. Strings will be converted into two types of numeric values, double floating number and integer, based on the following rules: The value is given by the initial portion of the string... 2016-10-13, ∼2367🔥, 0💬

Concatenating Two Strings in PHP
How To Concatenate Two Strings Together? 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 script will print: Hello world!     ⇒ Comparing Two Strings in PHP ⇐... 2016-10-13, ∼2365🔥, 0💬

Escape Sequences in Single-Quoted Strings in PHP
How Many Escape Sequences Are Recognized in Single-Quoted Strings? There are two special characters you need to escape in a single-quote string: the single quote (') and the back slash (\). Here is a PHP script example of single-quoted strings: &lt;?php echo 'Hello world!'; echo 'It\'s Friday!';... 2016-10-13, ∼2360🔥, 0💬

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Blockchain Container EPUB General HTML JSON Microsoft Node.js PHP Python RSS Tools Visual Studio Web