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PHP Built-in Functions for Arrays
Where to find tutorials on how to use PHP built-in functions to manage arrays? A collection of tutorials to answer many frequently asked questions on how to PHP functions to manage arrays. Clear answers are provided with tutorial exercises on searching keys and values, sorting arrays, merging two ar... 2017-01-29, ∼3049🔥, 0💬

Copying an Array in PHP
Can You Copy an Array in PHP? You can create a new array by copying an existing array using the assignment statement. Note that the new array is not a reference to the old array. If you want a reference variable pointing to the old array, you can use the reference operator "&amp;". Here is a PHP... 2017-02-03, ∼3044🔥, 0💬

Joining Keys and Values into an Array in PHP
How To Join a List of Keys with a List of Values into an Array in PHP? If you have a list keys and a list of values stored separately in two arrays, you can join them into a single array using the array_combine() function. It will make the values of the first array to be the keys of the resulting ar... 2017-01-11, ∼3039🔥, 0💬

Using an Array as a Stack in PHP
How To Use an Array as a Stack in PHP? 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 value to the end of an array. The value will b... 2017-01-11, ∼3023🔥, 0💬

Creating a Directory in PHP
How To Create a Directory in PHP? You can use the mkdir() function to create a directory. Here is a PHP script example on how to use mkdir(): &lt;?php if (file_exists("/temp/download") ){ print("Directory already exists.\n"); } else { mkdir("/temp/download"); print("Directory created.\n"); } ?&a... 2016-11-24, ∼3009🔥, 0💬

Data Types of Array Keys in PHP
What Types of Data Can Be Used as Array Keys in PHP? Two types of data can be used as array keys: string and integer. When a string is used as a key and the string represent an integer, PHP will convert the string into a integer and use it as the key. Here is a PHP script on different types of keys:... 2017-02-03, ∼2986🔥, 0💬

Generating Character from ASCII Value in PHP
How To Generate a Character from an ASCII Value? If you want to generate characters from ASCII values, you can use the chr() function. chr() takes the ASCII value in decimal format and returns the character represented by the ASCII value. chr() complements ord(). Here is a PHP script on how to use c... 2016-10-13, ∼2968🔥, 0💬

Remove Trailing New Line Character in PHP
How To Remove the New Line Character from the End of a Text Line? If you are using fgets() to read a line from a text file, you may want to use the chop() function to remove the new line character from the end of the line as shown in this PHP script: &lt;?php $handle = fopen("/tmp/inputfile.txt"... 2016-10-13, ∼2922🔥, 0💬

Creating a Database Table to Store Files in PHP
How To Create a Table To Store Files in PHP? If you using MySQL database and want to store files in database, you need to create BLOB columns, which can holds up to 65,535 characters. Here is a sample script that creates a table with a BLOB column to be used to store uploaded files: &lt;?php $co... 2016-10-14, ∼2904🔥, 0💬

Setting a Persistent Cookie in PHP
How To Set a Persistent Cookie in PHP? 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: setcookie("LoginName","FYICent er");setcookie("Pr... 2016-11-04, ∼2880🔥, 0💬

Setting session.gc_maxlifetime Properly in PHP
How To Set session.gc_maxlifetime Properly in PHP? As you know that session.gc_maxlifetime is the session value timeout period. You should set this value based on the usage pattern of your visitors. Here are some suggestions: # Set it to 20 minutes for a normal Web site: session.gc_maxlifetime = 120... 2016-10-24, ∼2875🔥, 0💬

Viewing the Content of a Cookie File in PHP
How to View the Content of a Cookie File in PHP? Cookie files are normal text files. You can view them with any text editor. Follow the steps below to see what is in a cookie file created by your own PHP script. Copy the following sample script, setting_persistent_cookies.php ,to your Web server: &a... 2016-10-30, ∼2863🔥, 0💬

Filtering Out Empty Files in PHP
Why Do You Need to Filter Out Empty Files in PHP? When you are processing uploaded files, you need to check for empty files, because they could be resulted from a bad upload process but the PHP engine could still give no error. For example, if a user typed a bad file name in the upload field and sub... 2016-10-14, ∼2846🔥, 0💬

Downloading and Installing PHP
Where to find tutorials in downloading and installing PHP binary version for Windows system. Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team in downloading and installing PHP binary version for Windows system. Installing PHP for Windows Verifying ... 2016-10-13, ∼2806🔥, 0💬

Joining Multiple Strings in PHP
How To Join Multiple Strings into a Single String? 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 to use implode(): &lt;?php $date = array('01', '01', '2006'); $keys =... 2016-10-13, ∼2789🔥, 0💬

Specifying Domain and Path for a Cookie in PHP
How To Specify Domain and Path for a Cookie in PHP? If you want to specify domain and path for cookie, you can use the setcookie() function with two extra parameters. The sample PHP script below shows you how to set the domain and path attributes for temporary and persistent cookies: &lt;?php se... 2016-11-03, ∼2777🔥, 0💬

Counting the Number of Characters in PHP
How To Count the Number of Characters in a String? You can use the "strlen()" function to count 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 print: 12     ⇒ Ways to Remove Leading and Trailing... 2016-10-13, ∼2774🔥, 0💬

Supporting a Multiple-Page Form in PHP
How To Support Multiple-Page Forms in PHP? If you have a long form with a lots of fields, you may want to divide the fields into multiple groups and present multiple pages with one group of fields on one page. This makes the a long form more user-friendly. However, this requires you to write good sc... 2016-11-05, ∼2761🔥, 0💬

Randomly Retrieving Array Values in PHP
How To Randomly Retrieve a Value from an Array in PHP? If you have a list of favorite greeting messages, and want to randomly select one of them to be used in an email, you can use the array_rand() function. Here is a PHP example script: &lt;?php $array = array("Hello!", "Hi!", "Allo!", "Hallo!"... 2017-01-11, ∼2758🔥, 0💬

Running a PHP Script
How To Run a PHP Script? A standard alone PHP script can be executed directly with the PHP Command Line Interface (CLI). Write the following script in a file called hello.php: &lt;?php echo "Hello world!"; ?&gt; This script can be executed by CLI interface like this: \php\php hello.php You s... 2016-10-13, ∼2757🔥, 0💬

Domain and Path Attributes for Cookies in PHP
What Are Domain and Path Attributes for Cookies in PHP? Cookies can also be defined with two other attributes: Domain - A cookie attribute that defines the domain name of Web servers where this cookie is valid. Web browsers holding this cookie should not sent it back to any Web server outside the sp... 2016-11-03, ∼2740🔥, 0💬

Installing PHP for Windows
How To Download and Install PHP for Windows? The best way to download and install PHP on Windows systems is to: Go to http://www.php.net, which is the official Web site for PHP. Download PHP binary version for Windows in ZIP format. Unzip the downloaded file into a directory. You are done. No need t... 2016-10-13, ∼2738🔥, 0💬

Single Cookie Size Limit in PHP
How Large Can a Single Cookie Be in PHP? How large can a single cookie be? The answer is depending what is the Web browser your visitor is using. Each browser has its own limit: Internet Explorer (IE): about 3904 bytes Mozilla Firefox: about 3136 bytes If you want to test this limit, copy this sampl... 2016-10-30, ∼2734🔥, 0💬

Cookies Encoded during Transportation in PHP
How Are Cookies Encoded During Transportation in PHP? When cookies are transported from servers to browsers and from browsers back to servers, Cookies values are always encoded using the URL encoding standard to ensure that they are transported accurately. But you don't need to worry about the encod... 2016-10-29, ∼2732🔥, 0💬

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