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Introduction to MySQL stored procedures. Tutorial on MySQL procedure syntax, delimiter, tools to create procedure, characteristics clauses, variables, compound statements, label, declare, if, repeat, loop, return, while statement and cursor.

The abs() method of math object is used to get the absolute value of a number.

An Array is used to store a number of values (called as elements) in order with a single variable. Can be created using javascript array object constructor. new Array(size) new Array(element0, element1, ..., elementN)

Often, situations arise when an user should fill a single or more than one fields in a HTML form before they submit it. You can write a JavaScript form validation script to check whether the required field(s) in the HTML form is blank or not.

The PHP for loop allows the user to put all the loop-related statements (i.e. INITIALIZER; CONDITION; INCREMENTOR or DECREMENTOR) in one place. The structure is similar to C language.

PHP uses if keyword to implement the decision control instruction. The structure is similar to C language.

There are four different pairs of opening and closing tags which can be used in php. Here is the list of tags. Default syntax,Short open Tags,HTML Script Tags,ASP Style Tags.

$_REQUEST is a super global variable which is widely used to collect data after submitting html forms.

Bitwise operators allow to operate on the bitwise representation of their arguments.

JavaScript is not a full-blown object oriented programming language, such as Java, but it is designed on a simple object-based model. An object is a construct with properties that contain JavaScript variables or other objects.