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PHP Articles
Page 78 of 81
What are the differences between JavaScript and PHP cookies?
JavaScript CookiesUsing JavaScript cookies is the most efficient method of remembering and tracking preferences, purchases, commissions, and other information required for better visitor experience or site statistics.PHP CookiesCookies are text files stored on the client computer and they are kept for tracking purpose. PHP transparently supports HTTP cookies.How JavaScript cookies work?Your server sends some data to the visitor's browser in the form of a cookie. The browser may accept the cookie. If it does, it is stored as a plain text record on the visitor's hard drive. Now, when the visitor arrives at another page on your site, the browser ...
Read MoreComparison of dates in PHP
Matching two dates in PHP is quite smooth when both the dates are in a similar format but php failed to analyze when the two dates are in an unrelated format. In this article, we will discuss different cases of date comparison in PHP. We will figure out how to utilize DateTime class, strtotime() in comparing dates.Case 1:we can analyze the dates by simple comparison operator if the given dates are in a similar format.Output:2019-03-26 is latest than 2018-11-24Explanation:Here we have declared two dates $date1 and $date2 in the same format. So we have used a comparison operator(>) to compare ...
Read MoreConvert object to an array in PHP.
In a PHP application, we are working with data in various formats such as string, array, objects or more...In a real-time application, we may need to read a php object result in the form of an associative array to get the desired output.So we will discuss here how to transform a php object to an associative array in PHP.Let's explain what is an object and associative array in PHP? An object is an instance of a class meaning that from one class you can create many objects. It is simply a specimen of a class and has memory allocated. While ...
Read MoreExplain include(),require(),include_once() and require_once() functions in PHP.
In this article, we will learn about useful and important functions in PHP for file inclusion. All these functions require, require_once, include and include_once are utilized to include the files in the php page but there is a slight distinction among them in terms of functionality.Let's discuss these functions below with their functionality.include() :This function is used to include a file in a PHP page. If include() function is not able to find a specified file on location at that time it will throw a warning message however, it will not stop script execution.require():This function is utilized to add a ...
Read MoreExplain Polymorphism in PHP.
To begin with, Polymorphism is gotten from the Greek words Poly (which means many) and morphism (which meaning forms).Polymorphism portrays an example in object-oriented programming where methods in various classes that do similar things should have a similar name. Polymorphism is essentially an OOP pattern that enables numerous classes with different functionalities to execute or share a commonInterface. The usefulness of polymorphism is code written in different classes doesn't have any effect which class it belongs because they are used in the same way. In order to ensure that the classes do implement the polymorphism guideline, we can pick between ...
Read MoreExtracting only date from datetime field in MySQL and assigning it to PHP variable?
You need to use DateTime class if you want to extract the only date from datetime field. The syntax is as follows −DateTime::createFromFormat("Y-m-d H:i:s",yourDateTimeValue)->format("yourFormatSpecifier");Now you can implement the above syntax in your PHP code to extract the only date from datetime field. The PHP code is as follows −$MySQLDataBaseDateTime = "2018-02-13 13:10:15"; echo DateTime::createFromFormat("Y-m-d H:i:s",$MySQLDataBaseDateTime)->format("d/m/Y");Here is the screenshot of the PHP code −Output13/02/2018
Read Moreezmlm_hash() function in PHP
The ezmlm_hash() function calculates the hash value needed when keeping EZMLM mailing lists in a MySQL database.Syntaxezmlm_hash(addr);Parametersaddr − The email address being hashed.ReturnThe ezmlm_hash() function returns the hash value of addr.ExampleThe following is an example −
Read Moreftp_alloc() function in PHP
The ftp_alloc() function allocates space for a file to be uploaded to the FTP server.Syntaxftp_alloc(connection,size_of_file,res);Parametersconnection − The FTP connection to usesize_of_file − The number of bytes to allocateres − A variable to store the server responseReturnThe ftp_alloc() function returns TRUE on success or FALSE on failureExampleThe following is an example −
Read Moreftp_cdup() function in PHP
The ftp_cdup() function changes the current directory to the parent directory.Syntaxftp_cdup(con);Parameterscon − The FTP connectionReturnThe ftp_cdup() function returns TRUE on success or FALSE on failure.ExampleThe following is an example wherein we are updating the current directory to parent directory −
Read Moreftp_chmod() function in PHP
The ftp_chmod() function set permissions on a remote file via FTP.Syntaxftp_chmod(con, mode, my_file);Parameterscon − The FTP connectionmode − The new permissions.It consists of four numbers −The first number is always zeroThe second number specifies permissions for the OWNERThe third number specifies permissions for the OWNER's USER GROUPThe fourth number specifies permissions for EVERYBODY ELSEPossible values (to set multiple permissions, add up the following numbers) −1 = execute permissions2 = write permissions4 = read permissionsmy_file − The File nameReturnThe ftp_chmod() function returns new file permissions on success or FALSE on error.ExampleThe following is an example to set file permission by changing ...
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