A K Chauhan’s Blog

Create a TinyURL using PHP and TinyURL API

Posted by admin in PHP, Web Service on November 24th, 2009

TinyURL is an awesome service. For those who don’t know what TinyURL is, TinyURL allows you to convert your long URLs like “http://www.akchauhan.com/category/jquery/” to small URLs like “http://tinyurl.com/yz4c4ba”. Basically you need such type of service when you are posting your data to some third party web service and there is limit on the number of characters you can post like Twitter. Twitter only allow 140 characters long Tweet.

Using the PHP and TinyURL API, you can create these tiny URLs.

function get_tiny_url($url)  
{  
	$ch = curl_init();  
	$timeout = 5;  
	curl_setopt($ch,CURLOPT_URL,'http://tinyurl.com/api-create.php?url='.$url);  
	curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);  
	curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);  
	$data = curl_exec($ch);  
	curl_close($ch);  
 
	return $data;  
}
 
//test it out!
$new_url = get_tiny_url('http://www.akchauhan.com/category/jquery/');
 
//returns http://tinyurl.com/yz4c4ba
echo $new_url;

PHP, TinyUrl

6 Comments

Create Random Alphanumeric Password in PHP

Posted by admin in PHP on November 12th, 2009

We can use this simple password generation function to create random passwords. The maximum limit of generated password is 36 characters.

<?php
	function gen_password($size = 8) {
		$size = $size > 36 ? 30 : $size;
		$pool = array_merge(range(0, 9), range('A', 'Z'));
		$rand_keys = array_rand($pool, $size);
 
		$password = '';
 
		foreach ($rand_keys as $key) {
			$password .= $pool[$key];
		}
 
		return $password;
	}
 
	$password = gen_password(10);
?>

We can use it like this.

<?php
	$password = gen_password(10);
?>

Password, PHP

1 Comment

JavaScript List Search using jQuery

Posted by admin in JavaScript, jQuery on October 30th, 2009

List Search using jQuery

Here in this example we are using jQuery to filter the list of products. We have list of products in UL and LI. We have associated the “KeyUp” event on the top search textbox. So when somebody type in the textbox we filter the list on the basis of entered value.

We are using the RegExp for comparing the string for matching characters. First we created the regular expression “rg” from the given text and compare the product name (string) with the help of search function.

The search function return the position of string where match is found or ‘-1′ in case of no match.

So, we selected all the LI’s exist inside the ‘product_list‘ ID and match each product name one by one. We hide the LI if its text not match the current search text and display the LIs with matching text.

HTML Code: -

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Sales Vu</title>
<link rel="stylesheet" href="pm-common-new.css" type="text/css" />
<!--[if IE]><link rel="stylesheet" href="ie.css" type="text/css" media="screen, projection"><![endif]-->
</head>
<body style="padding-left:20px;">
<div class="top-bar">
    <div class="top-left-corner"><img src="images/top-left-corner.png" /></div>
    <div class="top-mid-bg">Product Management</div>
    <div class="top-right-corner"><img src="images/top-right-corner.png" /></div>
</div>
<div class="body-part">
    <div class="body-part-top">
        <div class="search-container">
            <div class="search-box" style="float:left; width:257px;">
                <div style="float: left; width: 70px; padding-top: 4px; font-weight: bold;">Search&nbsp;</div> 
                <div class="text-field-box">
                    <input name="" type="text"  id="search" autocomplete="off" class="search-box-bg" />
                </div>
                <div class="text-field-cancel-button">
                    <a href="javascript:void(0);" id="search_clear" ><img src="images/search-box-cancel.png" border="0" id="search_clear" /></a>
                </div>
            </div>
        </div>
        <div class="modifier-product">
            <div class="modifier-product-right" style="float:left;">
                <div class="modifier-product-right-top">
                    Product
                </div>
                <div class="modifier-product-right-mid">
                    <div class="modifier-product-right-detail" id="product_list">
                        <div class="modifier-product-right-detail-heading">
                            <div class="product-list-heading">Product</div>
                            <div class="price-list-heading">Price ($)</div>
                        </div>
                        <div class="product-list">
                            <ul>
                            	<li>
                                    <div class="product">Banana Split</div>
                                    <div class="price">3.00</div>
                                </li>
                                <li>
                                    <div class="product">Bird Lite</div>
                                    <div class="price">2.45</div>
                                </li>
                                <li>
                                    <div class="product">Butter</div>
                                    <div class="price">2.00</div>
                                </li>
                                <li>
                                    <div class="product">Chicken With Coke</div>
                                    <div class="price">3.45</div>
                                </li>
                                <li>
                                    <div class="product">Chips With Coke</div>
                                    <div class="price">3.75</div>
                                </li>
                                <li>
                                    <div class="product">Corono Lite</div>
                                    <div class="price">2.00</div>
                                </li>
                                <li>
                                    <div class="product">Eggs</div>
                                    <div class="price">0.50</div>
                                </li>
                                <li>
                                    <div class="product">Limca</div>
                                    <div class="price">1.05</div>
                                </li>
                                <li>
                                    <div class="product">Sprite</div>
                                    <div class="price">1.20</div>
                                </li>
                                <li>
                                    <div class="product">test product</div>
                                    <div class="price">3.00</div>
                                </li>
                            </ul>
                        </div>
                    </div>
                </div>
                <div class="modifier-product-right-bottom">
                    &nbsp;
                </div>
            </div>
        </div>
    </div>
    <div class="body-part-bottom">
        <img src="images/body-bottom.png" />
    </div>
    </div>
</body>
</html>
<script src="jquery.js" type="text/javascript"></script>
<script src="pm_new.js" type="text/javascript"></script>

JavaScript Code: -

// JavaScript Document
$(document).ready(function () {
	$('#search').keyup(function(event) {
		var search_text = $('#search').val();
		var rg = new RegExp(search_text,'i');
		$('#product_list .product-list .product').each(function(){
 			if($.trim($(this).html()).search(rg) == -1) {
				$(this).parent().css('display', 'none');
 				$(this).css('display', 'none');
				$(this).next().css('display', 'none');
				$(this).next().next().css('display', 'none');
			}	
			else {
				$(this).parent().css('display', '');
				$(this).css('display', '');
				$(this).next().css('display', '');
				$(this).next().next().css('display', '');
			}
		});
	});
});
 
$('#search_clear').click(function() {
	$('#search').val('');	
 
	$('#product_list .product-list .product').each(function(){
		$(this).parent().css('display', '');
		$(this).css('display', '');
		$(this).next().css('display', '');
		$(this).next().next().css('display', '');
	});
});

JavaScript, jQuery, listbox

3 Comments

Create Windows Service to Schedule PHP Script execution

Posted by admin in C#, PHP, Web Service on September 22nd, 2009

If you want to schedule your PHP script or any other command on Windows Platform recursively after a fix interval of time then you can create a Windows Service for it. Windows service is very easy to create in Visual Studio.Net. I’m using C# language for this scheduler service you can also use VB.net for it. Basically we need this type of service if we want to execute some PHP script in background in a specific interval of time. For example, If you want to import data in bulk from some web service.

You need to follow these steps: -

Create a project by using the Windows Service application template. This template creates a class for you that inherits from ServiceBase and writes much of the basic service code, such as the code to start the service.
Write the code for the OnStart and OnStop procedures, and override any other methods that you want to redefine.
Add the necessary installers for your service application. By default, a class that contains two or more installers is added to your application when you click the Add Installer link: one to install the process, and one for each associated service that your project contains.
Build your project.
Create a setup project to install your service, and then install it.
Access the Windows 2000 Services Control Manager and start your service.

For more detail check “Walkthrough: Creating a Windows Service Application in the Component Designer” topic in MSDN.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Linq;
using System.ServiceProcess;
using System.Text;
using System.Timers;
 
namespace MyNewService
{
    public partial class MyNewService : ServiceBase
    {
        private Timer syncTimer = null;  
 
        public MyNewService()
        {
            InitializeComponent();
        }
 
        protected override void OnStart(string[] args)
        {
            syncTimer = new Timer();
            this.syncTimer.Interval = 180000;
            this.syncTimer.Elapsed += new System.Timers.ElapsedEventHandler(this.syncTimer_Tick);
            syncTimer.Enabled = true;
        }
 
        protected override void OnStop()
        {
            syncTimer.Enabled = false;
        }
 
        private void syncTimer_Tick(object sender, EventArgs e)
        {
            System.Diagnostics.Process.Start(@"C:\xampp\htdocs\task.bat");
        }  
    }
}

The task.bat file is a batch file. We are executing our PHP script through this batch file. First we set the path of directory where php.exe is located in your windows. The import.php is basically importing data in bulk from some web and we need to execute this script file background in every 3 minutes.

@echo off
cd\
set path=C:\xampp\php;
cd "C:\xampp\htdocs"
php import.php
exit

C#, Job Schedule, PHP, Windows Service

3 Comments

How use cURL library when running PHP through Command Line

Posted by admin in PHP on September 17th, 2009

If you run any PHP code which using cURL extension through command line like this:

c:\>php somefile.php

it might give error that “curl_init()” function is not defined. The reason is the cURL extension “php_curl.dll” is not loaded. So, to resolve this issue you can load cURL (or any extension) dynamically in your PHP code. The “dl()” basically load PHP extension at runtime.

<?php
dl("php_curl.dll");
...
?>

curl, PHP

No Comments

A K Chauhan’s Blog

Create a TinyURL using PHP and TinyURL API

Create Random Alphanumeric Password in PHP

JavaScript List Search using jQuery

Create Windows Service to Schedule PHP Script execution

How use cURL library when running PHP through Command Line

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Create a TinyURL using PHP and TinyURL API

Create Random Alphanumeric Password in PHP

JavaScript List Search using jQuery

Create Windows Service to Schedule PHP Script execution

How use cURL library when running PHP through Command Line

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