happy ganesh chaturthi 2014


Comments

Post a Comment

Popular posts from this blog

Optimizing MySQL: Queries and Indexes

Optimizing MySQL: Queries and Indexes   You know the scene. The database is just too slow. Queries are queuing up, backlogs growing, users being refused connection. Management is ready to spend millions on "upgrading" to some other system, when the problem is really that MySQL is simply not being used properly. Badly defined or non-existent MySQL indexes are one of the primary reasons for poor performance, and fixing these can often lead to phenomenal improvements. Consider an extreme example: CREATE TABLE employee (    employee_number char(10) NOT NULL, ...
Read more

yii2 arrayhelper::map vs array_map

Recently i was working on YII2 project in which i came across arrayhelper::map() and was thinking alternate in php. so i used array_map() also tested the performance of both in yii2 by start time and end time for both ,surprising was that execution time remain same.please let me know if there is any alternate that will execute faster then arrayhelper::map(). Adding the code in yii2: function find_field($value){ $value['id'] = $value['name']; return $value['id']; } $array = ['1'=>['id'=>1,'name' =>"pramodh",'address' =>'45 vk street','loc'=>'cbe'],'2'=>['id'=>2,'name' =>"pramodh kumar",'address' =>'45343 vk street','loc'=>'pune']]; $a = array_map(array($this,'find_field'),$array); print_r($a); yii2 code: $list = ArrayHelper::map($array,  ' id ' ,  ...
Read more

Object Oriented Concepts in PHP5

Object Oriented Concepts in php: Before we go in detail, lets define important terms related to Object Oriented Programming. Class: This is a programmer-defined datatype, which includes local functions as well as local data. You can think of a class as a template for making many instances of the same kind (or class) of object. Object: An individual instance of the data structure defined by a class. You define a class once and then make many objects that belong to it. Objects are also known as instance. Member Variable: These are the variables defined inside a class. This data will be invisible to the outside of the class and can be accessed via member functions. These variables are called attribute of the object once an object is created. Member function: These are the function defined inside a class and are used to access object data. Inheritance: When a class is defined by inheriting existing function of a parent class then it is called inheritance. Here child class w...
Read more