PHP – Strings Functions

php-training-in-gurgaon
String functions are the most important functions frequently used in PHP. String is the sequence of characters, like "Let’s learn String functions”. There is no installation required to use string function. Example <?php $name = "Hirdesh Bhardwaj"; print($name); ?> String Concatenation Operator To concatenate two string variables together, we use the dot (.) operator − <?php $txt1="Hello Readers"; $txt2="8756"; echo $txt1 . " " . $txt2; ?> Using the strlen() function The strlen() function is used to get the length of a string. <?php $txt=”Webs Jyoti”; echo strlen($txt); ?> This will produce the following result – 10 (including space) Using the strpos() function The strpos() function is used to search for a text or character within a string. If the value is found then this will return the position of…
Read More

Sending email – Mail Function in PHP

php-training-in-gurgaon
Almost in every web application sending automated email by system is the common requirement. So, it’s very common and important part that must be known by developer. The simple example, when a visitor to your website fills out a enquiry form. mail function return a boolen value, return true if email sent successfully, false otherwise  Syntax: mail ($to , $subject , $message, $additional_headers); $to: This is the first parameter of mail function hold the email address of receiver, the address to which email has to be sent. $subject: Every email should have subject. This parameter cannot contain any newline characters. $message: This is the actual body or content of email to send.  Please note that every line should be break by \n and every line should not exceed the limit…
Read More

Introduction to Ajax

php-training-in-gurgaon
Ajax (Asynchronous Java script And XML)  Introduction In Jesse Garrett’s original article that coined the term, it was AJAX. The “X” in AJAX really stands for XML HTTP Request though, and not XML. Jesse later conceded that Ajax should be a word and not an acronym and updated his article to reflect his change in heart. So “Ajax” is the correct casing. As its name implies, Ajax relies primarily on two technologies to work: JavaScript and the XML HTTP Request. Standardization of the browser DOM (Document Object Model) and DHTML also play an important part in Ajax’s success, but for the purposes of our discussion we won’t examine these technologies in depth. How Ajax Works At the heart of Ajax is the ability to communicate with a Web server asynchronously without taking away the…
Read More

Data types in Mysql / Mariadb

php-training-in-gurgaon
Numeric Data Types: INT (Integer): Int data type represents an integer of normal size. So simply it can used to store numeric value. There are also BIGINT, MEDIUMINT, SMALLINT and TINYINT which represent different range of integer values. DECIMAL: Decimal data type represents numbers with specific floating values. Maximum permitted value is 65 and maximum decimals are 30. There are also FLOAT and DOUBLE to store numeric values with floating point. BOOLEAN:  This data type associates a value 0 with ―”false”, and a value 1 with true. Date and Time Data Types:  DATE: The DATE data type represents a date in “YYYY-MM-DD” format. TIME: The TIME data type represents a time in "HH:MM:SS" format. DATETIME: The DATETIME data type represents date and time in “YYYY-MM-DD HH:MM:SS” format. TIMESTAMP: This data…
Read More