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PHP Tutorials
Where to find tutorials on PHP language? I want to know how to learn PHP. Here is a large collection of tutorials to answer many frequently asked questions compiled by FYIcenter.com team about PHP language: Downloading and Installing PHP Installing PHP for Windows Verifying PHP Installation PHP Conf...
2016-10-13, 20091👍, 0💬

Submitting Values without Using a Form in PHP
How To Submit Values without Using a Form in PHP? 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 query strings to submit value...
2016-11-08, 942👍, 0💬

Connecting to a MySQL Server in PHP
How To Connect to MySQL from a PHP Script in PHP? If you want access the MySQL server, you must create a connection object first by calling the mysql_connect() function in the following format: $con = mysql_connect($server, $username, $password); If you are connecting to a local MySQL server, you do...
2016-10-20, 936👍, 0💬

"new line" Character in Single-Quoted Strings in PHP
Can You Specify the "new line" Character in Single-Quoted Strings? You can not specify the "new line" character in a single-quoted string. If you don't believe, try this script: <?php echo '\n will not work in single quoted strings.'; ?> This script will print: \n will not work in sing...
2016-10-13, 902👍, 0💬

Working with MySQL Database in PHP
Where to find tutorials on how to work with MySQL Database in PHP? A collection of tutorials to answer many frequently asked questions on how to Work with MySQL Database in PHP. Clear explanations and tutorial exercises are provided on connecting and selecting MySQL database, creating and dropping t...
2016-10-22, 869👍, 0💬

Creating Your Own Functions in PHP
Where to find tutorials on how to create Your Own Functions in PHP? A collection of tutorials to answer many frequently asked questions on Creating Your Own Functions in PHP. Topics included in this collection are: Defining a User Function in PHP Invoking a User Function in PHP Returning a Value fro...
2016-12-28, 860👍, 0💬

Removing Slashes on Submitted Input Values in PHP
How To Remove Slashes on Submitted Input Values in PHP? By default, when input values are submitted to the PHP engine, it will add slashes to protect single quotes and double quotes. You should remove those slashes to get the original values by applying the stripslashes() function. Note that PHP eng...
2016-11-08, 856👍, 0💬

What Is session_register() in PHP
What Is session_register() in PHP? session_register() is old function that registers global variables into the current session. You should stop using session_register() and use array $_SESSION to save values into the current session now.   ⇒Understanding and Using Sessions in PHP ⇒⇒PHP Tutorials
2016-10-22, 854👍, 0💬

Reading Data from Keyboard in PHP
How To Read Data from Keyboard (Standard Input) in PHP? If you want to read data from the standard input, usually the keyboard, you can use the fopen("php://stdin") function. It creates a special file handle linking to the standard input, and returns the file handle. Once the standard input is opene...
2016-11-24, 839👍, 0💬

Selecting an Existing Database in PHP
How To Select an Exiting Database in PHP? 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 Web hosting company, they will assign a da...
2016-10-20, 818👍, 0💬

Looping through an Array without "foreach" in PHP
How To Loop through an Array without Using "foreach" in PHP? PHP offers the following functions to allow you loop through an array without using the "foreach" statement: reset($array) - Moves the array internal pointer to the first value of the array and returns that value. end($array) - Moves the a...
2017-01-05, 815👍, 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(): <?php if (file_exists("/temp/download") ){ print("Directory already exists.\n"); } else { mkdir("/temp/download"); print("Directory created.\n"); } ?&a...
2016-11-24, 813👍, 0💬

Quoting Date and Time Values in PHP
How To Quote Date and Time Values in SQL Statements in PHP? If you want to provide date and time values in a SQL statement, you should write them in the format of "yyyy-mm-dd hh:mm:ss", and quoted with single quotes ('). The tutorial exercise below shows you two INSERT statements. The first one uses...
2016-10-19, 808👍, 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, 808👍, 0💬

Reading and Writing Files in PHP
Where to find tutorials on how to Read and Write Files in PHP? A collection of tutorials to answer many frequently asked questions how to Read and Write Files in PHP. Topics included in this collection are: Reading a Text File to an Array in PHP Reading the Entire File to a String in PHP Opening a f...
2016-12-04, 800👍, 0💬

Uploading Files into Database in PHP
How To Upload Files into Database in PHP? To store uploaded files to MySQL database, you can use the normal SELECT statement as shown in the modified processing_uploaded_files.php listed below: <?php $con = mysql_connect("localhost", "", ""); mysql_select_db("fyi"); $error = $_FILES['fyicente...
2017-02-20, 799👍, 1💬

💬 2017-02-20 Jonas: Thanks for the sample code!

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: <?php $co...
2016-10-14, 796👍, 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, 790👍, 0💬

Generating and Processing Form with the Same Script in PHP
How To Generate and Process a Form with the Same Script in PHP? In previous exercises, a Web form is generated by one script, and processed by another script. But you could write a single script to do both. You just need to remember to: Use same script name as the form generation script in the "acti...
2016-11-08, 789👍, 0💬

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, 788👍, 0💬

Specifying Argument Default Values in PHP
How To Specify Argument Default Values? in PHP? If you want to allow the caller to skip an argument when calling a function, you can define the argument with a default value when defining the function. Adding a default value to an argument can be done like this "function name($arg=expression){}. Her...
2016-12-04, 784👍, 0💬

Adding Values to an Array without Keys in PHP
Can You Add Values to an Array without Keys in PHP? Can You Add Values to an Array with a Key? The answer is yes and no. The answer is yes, because you can add values without specifying any keys. The answer is no, because PHP will add a default integer key for you if you are not specifying a key. PH...
2017-02-03, 769👍, 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, 751👍, 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: <?php echo "Hello world!"; ?> This script can be executed by CLI interface like this: \php\php hello.php You s...
2016-10-13, 749👍, 0💬

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