Estuff Cage Programming Blog

How to Search date from varchar fields in database Using PHP and MySql.

<div dir="ltr" style="text-align: left;" trbidi="on">
In This Tutorial, we are showing how to search date between two varchar column fields using PHP and MySql<br />
we can easily understand with the help of example written below: - <br />
In the database, we have two column in database like:-<br />
1). bill_start_date<br />
2). bill_end_date<br />
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<pre class="brush:php;">$final_date = '2015-06-08 12:04:05';
$finaldate = date("d/m/Y",strtotime($final_date));  // 08/06/2015 coming like this.

$cycling_start = $BSC->getSingleresult("select * from #_country_group_billing_cycle where str_to_date(bill_start_date,'%d/%m/%Y') <= STR_TO_DATE('$finaldate', '%d/%m/%Y') AND str_to_date(bill_end_date,'%d/%m/%Y') >= STR_TO_DATE('$finaldate', '%d/%m/%Y')");

</pre>
<br />
Using this query we are able to search date between two date fields.<br />
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How to Search date from varchar fields in database Using PHP and MySql.

In This Tutorial, we are showing how to search date between two varchar column fields using PHP and MySql we can easily understand with th...

+ Read More »

How to Search or find Checkbox value using PHP MySql Query?

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In this tutorial, we are showing how to search the value of check box in PHP MySql Query.<br />
In search CSV value or check box value with <span class="highlight">FIND_IN_SET()</span> in MySql query, Explode the array value and then separate and add to query below showing with easy example.<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjO6u5X2kHmytyxyv0BRuTFgpwAtoilvUcUC21P_-xKAQqDvXqx4FGgmSqJVD3HZRm8_TdqcCNyJYS6WcWuSGCrUXW_CRJt7bAKq1lm3IMs6js418oyvsQu4ZvQhM4iSymELmO9EtxoUlY/s1600/checkbox-search-300x120.png" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" height="128" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjO6u5X2kHmytyxyv0BRuTFgpwAtoilvUcUC21P_-xKAQqDvXqx4FGgmSqJVD3HZRm8_TdqcCNyJYS6WcWuSGCrUXW_CRJt7bAKq1lm3IMs6js418oyvsQu4ZvQhM4iSymELmO9EtxoUlY/s1600/checkbox-search-300x120.png" width="320" /></a></div>
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<br /><br />
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<br />
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<br />
<pre class="brush:php;">
<!--php 
//include connection file

//checkbox value
$myHobbies = 'cricket,hockey';
$where = '';
if($myHobbies!='')
{
$myHobArr = explode(',',$myHobbies);
for($i=0;$i<count($myHobArr);$i++)
{
        $name = $myHobArr[$i];
        if($name!='')
        {
        //hobbies database field name
        $res = " AND FIND_IN_SET('$name',`hobbies`)";
        $where .=$res;
        }
}
}
$query = "SELECT * FROM registration WHERE 1 $where";
$sql = mysql_query($query);
while($res = mysql_fetch_assoc($sql))
{
print_r($res);
}
//show 2 results

?-->
</pre></div>

How to Search or find Checkbox value using PHP MySql Query?

In this tutorial, we are showing how to search the value of check box in PHP MySql Query. In search CSV value or check box value with FIND...

+ Read More »

Codeigniter: Session is blank on some pages in Codeigniter?

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<h1>How to handle when Session become blank on some pages.</h1><br />
<br />
In this Tutorial, we are Showing solution to codeigniter developer. Some time we get irritate due to session break or session get blank on some pages during making live project on Codeigniter or website.<br />
Developers use many short cut and uses sessions those stay only for some times. Here I am showing you how to keep session for a long time on all pages. We are showing permanent solution for storing a session in MVC module of codeigniter.<br />
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<script>
(adsbygoogle = window.adsbygoogle || []).push({});
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Open the file and change some content into it.<br />
<pre class="brush:php;">
First you have to follow the path application/config/config.php
$config['sess_use_database'] = FALSE;
TO
$config['sess_use_database'] = TRUE;

and

$config['sess_table_name'] = 'ci_sessions';
// sess_table_name should be "ci_sessions" 
</pre>
<br />
After changing this syntax just copy and paste the SQL Query into Database.<br />
<pre class="brush:php;">
CREATE TABLE IF NOT EXISTS `ci_sessions` (
  `session_id` varchar(60) COLLATE utf8_unicode_ci NOT NULL DEFAULT '0',
  `ip_address` varchar(32) COLLATE utf8_unicode_ci NOT NULL DEFAULT '0',
  `user_agent` varchar(60) COLLATE utf8_unicode_ci NOT NULL,
  `last_activity` int(20) unsigned NOT NULL DEFAULT '0',
  `user_data` text COLLATE utf8_unicode_ci NOT NULL,
  PRIMARY KEY (`session_id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
</pre>
and the just clear all the cookies and clear cache of model.<br />
<br />
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<span>  </span></div>

Codeigniter: Session is blank on some pages in Codeigniter?

How to handle when Session become blank on some pages. In this Tutorial, we are Showing solution to codeigniter developer. Some time we g...

+ Read More »

How to use try catch in Error Handling using PHP?

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<h1>
Try and catch in Error Handling in PHP.</h1>
In this tutorial, we are showing error handling because it can be used in multiple programs for checking error messages. There are multiple scripts those use multiple exceptions to check into multiple conditions. we can also use multiple conditions like: - if, if else blocks into units, switch case, nested conditions with exception. every exception may have different exception using class module and returns different error statements and messages:
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 <br />We can easily understand with the help of Example: -  <br />

<pre class="brush:php;">
getLine().' in '.$this->getFile()
    .': <b>'.$this->getMessage().'</b> This is not a valid EMail ID';
    return $errorMsg;
  }
}

$emailid = "ashok@estuffcage...com";

try {
       //check if
      if(filter_var($emailid, FILTER_VALIDATE_EMAIL) === FALSE) {
      //throw an exception if your given email is not valid
     throw new mynewException($emailid);
   }
       //check for "example" in mail address
      if(strpos($emailid, "example") !== FALSE) {
      throw new myException("$emailid is an example e-mail");
  }
}

catch (mynewException $s) {
        echo $s->errorMessage();
     }

catch(myException $s) {
          echo $s->getMessage();
    }
 ?> 
</pre>
<br />
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</div>

How to use try catch in Error Handling using PHP?

Try and catch in Error Handling in PHP. In this tutorial, we are showing error handling because it can be used in multiple programs for c...

+ Read More »

How to get date before or after 3 days from current date using PHP Code?

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<div dir="ltr" style="text-align: left;" trbidi="on">
<h1>
Getting Date before or after 3 days from current date using PHP</h1>
<h1>
<span style="font-weight: normal;"><span style="font-size: small;">In this Tutorial, we are showing how to get date before or after 3 days from current date.<br />By using a simple method we can perform this in our live project.<br />
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<b>Here we are: -</b> <br />Just copy this code and can use it into your project.</span></span></h1>
<pre class="brush:php;">
<!--php
$curmonth= date("m"); // This is used for Month value
$curdate= date("d");  // This is used for today's date
$curyear= date("Y");  // This is used for Year value

echo date('Y-m-d', mktime(0,0,0,$curmonth,($curdate-3),$curyear));
?-->
</pre>
<span style="font-weight: normal;"><span style="font-size: small;"><b>Note: -</b> According to the requirement you can also change into the code. Like how many days you required before and after current date. In the Example, We are using 3 days before and after. just you have to change into "($curdate-3)" 3 number.<br /><br />We can also get date after 3 days from the current date.<br /></span></span></div>
<pre class="brush:php;">
<!--php
$curmonth= date("m"); // This is used for Month value
$curdate= date("d");  // This is used for today's date
$curyear= date("Y");  // This is used for Year value

echo date('Y-m-d', mktime(0,0,0,$curmonth,($curdate+3),$curyear));
?-->
</pre>

<span style="font-weight: normal;"><span style="font-size: small;"><b>Note: - </b>For using after current date change the difference of date by changing the  "($curdate+3)" 3 number to get  according yourself. </span></span></h1><br />
<h1>
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<h1>
<span style="font-weight: normal;"><span style="font-size: small;"> </span></span></h1>
</div>

How to get date before or after 3 days from current date using PHP Code?

Getting Date before or after 3 days from current date using PHP In this Tutorial, we are showing how to get date before or after 3 days...

+ Read More »

PHP interview questions for fresher to 2 year experience.

In this tutorial, We are sharing some interview questions those are mostly asked into the interview. In some interviews, interviewer will ask you question about PHP and HTML but in some cases, they will ask you to perform in practical task. they will give you some task to do.<br />
<br />
<b>PHP - Interview Question</b><br />
<br />
<b>Q1. Can we submit a form without using submit button?<br />Answer.</b><br />
<b>Yes</b>, Using JavaScript<br />
The main reason behind this to use submit() function in JavaScript for submitting the form value without using to click submit button. we can also attach the document.Formname.submit() function to OnClick and events and execute the form submission. we can also use some timer function by that after the given time form will be submit automatically.<br />
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<script>
(adsbygoogle = window.adsbygoogle || []).push({});
</script>
<br />
<b>Q2. How many types we can retrieve or fetch the data into the table or result set in PhpMyAdmin?</b><br />
<b>Answer</b>. There are 4 types by that we can fetch or retrieve data from database.<br />
1. mysql_fetch_row<br />
2. mysql_fetch_object<br />
3. mysql_fetch_array<br />
4. mysql_fetch_assoc<br />
<br />
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<script>
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</script>
<b>Q3. Difference between mysql_fetch_array  and mysql_fetch_object?<br />Answer.</b><br />
There are only one difference in both of them - Instead of an array, an object is returned. that means we can access the data with the help of field names, and not with the property names.<br />
<br />
<b>Q4. How to Create Database and its connectivity?<br />Answer.</b><br />
We can Create MySQL database with simple Query like: - <br />
mysql_create_db("your_database_name");<br />
<br />
And for connectivity - <br />
mysql_select_db("your_db_name");<br />
<br />
<b>Q5. Differences Between require and include, include_once and require_once?<br />Answer.</b><br />
<b>Require</b> and <b>Include</b> both are used for including file into file. but there are difference between them requires show the Fatal Error when file do not exists. but with include case, PHP script or file will run smoothly with out any error. Include shows the warning message only and script will continue regardless and require show the Fatal Error and halt the further process.<br />
<b>Include_once</b> function include and execute specified file while in execution of the script. the main purpose of <b>include_once</b> is that once file included into the file then we can not include again in same file.<br />
<br />
<b>Q6. What is the difference between $ and $$ ?</b><br />
<b>Answer.</b><br />
In this question <b>$var</b> is a simple PHP variable where $$var is a variables of variable.<br />
Suppose <b>$var</b> has value <b>$var = "Nishant"</b>; and <b>$$var = "is a good boy"</b>; <br />
if we <b>echo $var</b> then it will echo the value "Nishant" and if we echo  $$var then it will echo Again "Nishant".<br />
<br />
we can also write it as with best example: - <b>echo</b> "$var ${$var}";  // print Nishant is a good boy<br />
                                             <b>echo</b> "$var $Nishant"; // print Nishant is a good boy<br />
<br />
<b>Q7. How to encrypt the Username and password in the PHP? <br />Answer: </b><br />
There are many function in php and phpmysql those performs the encryption and decryption, compression decompression.<br />
<b>ENCODE()</b>        <b>DECODE()</b><br />
<br />
Base64 encode()      Base64 decode()       <br />
<br />
DES_ENCRYPT()   DES_DECRYPT()<br />
<br />
ENCRYPT()            Decryption is not available<br />
<br />
MD5()                     Decryption not available<br />
<br />
OLD_PASSWORD()  Not available<br />
<br />
Not available            UNCOMPRESSED_LENGTH() <br />
<br />
<b>Q8. What is the difference between GET, POST and REQUEST methods.<br />Answer: </b> <br />
There are some important factor for using it into the different projects.<br />
<b>Get Method</b> has some limitation to send data up-to 2 KB on request. Shows all values into the browser URL.<br />
<b>Post Method</b> has no limitation for sending data on request. do not show values into URL. so post method is generally used into the programming then GET method. its used for sending sensitive data from one page to another page.<br />
<b>Request Method</b> is used to retrieve or catch get and post value from the browser URL.<br />
<br />
<b>Q9. What is cookies?<br />Answer:</b><br />
Cookies are the flat files those store the user information.....<br />
<br />
<b>Q10. What is session and explain different type of session variable?<br />Answer:</b><br />
When any user login into application then its all details is stored into the session variable so that details may be used on all pages for maintaining his or her availability.<br />
There are different type of session variable in PHP.<br />
<b>session_start( )</b> = With this function we start the session for PHP application.<br />
<br />
Storing the session variable.<br />
<b>$_session['value'] = 1;</b><br />
in this, 1 is assign to session variable name value.<br />
<br />
Destroying the session<br />
<b>Session_destory();</b><br />
All session on application will be destroyed.<br />
<br />
<br />
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PHP interview questions for fresher to 2 year experience.

In this tutorial, We are sharing some interview questions those are mostly asked into the interview. In some interviews, interviewer will...

+ Read More »

Two Ways - How to Generate Five Digit Random Number in PHP?

<div dir="ltr" style="text-align: left;" trbidi="on">
<h1>
Two Ways - Generate Five Digit Random Number in PHP for storing any file Uniquely</h1>
In this tutorial, We are showing five digit random number generation because it has multiple use into PHP programming. we can use it for renaming or adding some extra random digits after or before the image or file name. so that file or image name can become unique for storing value in database.<br />
First Method: -<br />
<pre class="brush:php;">

$char = "BC0DEFG1HJK3LMO4PQRS5TUW6XYZa7bcdefg8hijklimno9pqrst";
                        $fivedigit = "";
                        for ($j = 0; $j < 5; $j++) {  // We can Also make any number of code for storing file or image
                        $fivedigit .= $char[mt_rand(0, strlen($char)-1)];
                        }
                        echo $random_code = $fivedigit;
<br />
</pre>
Second Method: -<br />
In this code, just have to add last variable after or before the file or image name. <br />
<pre class="brush:php;">
 
        $uniqueid_long=uniqid(rand(), true);
        $five_digit_unique_number = substr(str_shuffle($uniqueid_long), 0, 5);
        $final_code               = preg_replace('/[^a-zA-Z0-9_ -]/s', '', $five_digit_unique_number); 
</pre>
<br />
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<li><a href="http://www.estuffcage.com/2014/11/jquery-techniques-for-url-how-to-get-query-string-and-hashvalue-parameter.html" target="_blank">JQuery  Technique for URL, How to Get QueryString parameter from URL.</a></li>
<li><a href="http://www.estuffcage.com/2014/11/how-to-make-and-add-cookies-value-by.html">How to make and create cookie Using JavaScript Code.</a> </li>
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Two Ways - How to Generate Five Digit Random Number in PHP?

Two Ways - Generate Five Digit Random Number in PHP for storing any file Uniquely In this tutorial, We are showing five digit random numb...

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How to Make and Add Cookies value by JavaScript?

<div dir="ltr" style="text-align: left;" trbidi="on">
<h1>
Create and Add JavasScript Cookies into file.</h1>
In this tutorial, we are showing how to create and add cookies value in website.<br />
with this JavaScript code we can do it easily.<br />
<pre class="brush:php;"><script type="text/javascript">
      function setCookie(cookie_name,value,expdays)
        {
            var expdate=new Date();
            expdate.setDate(expdate.getDate() + expdays);
            var cookie_value=escape(value) + ((expdays==null) ? "" : "; expires="+expdate.toUTCString());
            document.cookie=cookie_name + "=" + cookie_value;
         }

Now Call to this function for creating cookie just like below code
       setCookie("cookie_name",value,365);
       If you Don't want to delete this cookie after some several time then place 0 on expdays(356)
</script>

</pre>
<br />
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How to Make and Add Cookies value by JavaScript?

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jQuery Techniques For URL, How to Get Query strings and Hashvalue Parameters

<div dir="ltr" style="text-align: left;" trbidi="on">
<h1>
How to Get Query strings and Hashvalue Parameters</h1>
In this tutorial, We are going to show how to retrieve URL value with the help of JavaScript and JQuery. in this case, Generally we get the value from browser URL with the help of some server side scripting languages like: - ASP, PHP and C Sharpe(#).<br />
<br />
So here we are telling to all of you how to get value from URL with help of JavaScript. It is quite easy to use this in your project code. if you have good hand on programming practice.<br />
<br />
<span style="font-size: small;"><b>1). How to GET current URL of page.</b></span><br />
A Very simple code, by that you can easily store the Current page URL in a JavaScript Variable.<br />
<pre class="brush:php;">// How to Retrieve Current URL Path
var url = document.URL;
</pre>
<br />
<b>2). How to GET current Root URL of page.</b><br />
In this simple Syntax code, We can get the current URL value into a variable. <br />
<pre class="brush:php;">// How to Retrieve Root URL of Current Page
var rootURL = location.protocol + '//' + location.host;
</pre>
<br />
<b>3). How to Redirect page using JavaScript</b><br />
In this Syntax Code, You can also use JQuery for redirecting the page.<br />
<pre class="brush:php;">// How to Redirect - Insert required URL
window.location.href = "http://estuffcage.com/"; or "http://estuffcage.blogspot.in/";
</pre>
<br />
<b>4). How to get Parameter in Querystring of current page</b><br />
sometime we send multiple parameters with value in browser URL and then we receive it into the different variables. so all this stuff we can also do with the help of Querystring. In this way we have to parse each parameter and store the array value as a variable:<br />
<pre class="brush:php;">var vars = [], hashvalue;
var query = document.URL.split('?')[1];
if(query != undefined)
{
 query = query.split('&');
 for(var i = 0; i < query.length; i++)
  {
  hashvalue = query[i].split('=');
  vars.push(hashvalue[1]);
  vars[hashvalue[0]] = hashvalue[1];
   }
}
</pre>
<br />
For using the parameter value by accessing the parameter name. like: - <br />
if our Browser URL contain "<b>?x=4&y=7&z=9</b>"<b> </b>with this help we can use the value for <b>"x"</b> using.<br />
<pre class="brush:php;">// Will alert the value of parameter x
    alert(vars['x']);  
</pre>
<br />
<b>5). How to Get the URL Hash Parameter</b><br />
Retrieve a hash parameter and store in a variable:<br />
<pre class="brush:php;">// How to Get # parameter from the URL in Browser.
   var param = document.URL.split('#')[1]; 
</pre>
<br />
<b><span style="color: red;"><span style="color: black;">Still if you are unable to use this code then feel free to contact me through contact form and if you have any query regarding Adsense or Blogging. then you can also share with us.</span></span></b><br />
<b><span style="color: red;"><span style="color: black;">Thanks, Don't Forget to give feedback for this post. </span></span></b><br />
<br />
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jQuery Techniques For URL, How to Get Query strings and Hashvalue Parameters

How to Get Query strings and Hashvalue Parameters In this tutorial, We are going to show how to retrieve URL value with the help of JavaS...

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How to Validate Bed Words in input fields while form submitting.

<div dir="ltr" style="text-align: left;" trbidi="on">
In this Tutorial, we are going to learn how to protect our form from unexpected or inappropriate words from the outside client or users.<br />
Some times users fill some bed words into the form. So here we want to filter and eliminate these inappropriate word so that we can get the right data from client side.<br />
<br />
<b>In this Example:-</b><br />
<b><br /></b>
<b>1). We are using HTML for Building Form</b><br />
<b></b><br />
<b>2). JavaScript for Validation</b><br />
<br />
In this form we are using one Textarea field for getting input from client side. but before submitting the form we are checking validation for this and then showing popup alert when validation find any bed word into the Textarea field that we describe into the bed word array. Validate form from the bed word.<br />
<br />
<pre class="brush:php;"><form action="thankyou.htm" method="post" name="form" onsubmit="return Messages();">

After building the form Copy and paste the below code before the <b>Head Tag</b>. JavaScript code should be in the proper <b>Script  Tags</b> like displayed into the below code.<br />
<pre class="brush:php;">
<script language="javascript" type="text/javascript">
var badword_array=new Array("bed_words","bed_words","bed_words","bed_words","bed_words","xx");

return alert_count;
}

function Messages()
{

var textboxval=document.form.textbox.value;
        if(textboxval=="")
        {
            alert("Please enter your message");
            return false;
        }

var badwords=bad_words(textbox_val);
        if(badwords>0)
        {
            alert("Your message has bed words. Please remove them from your Message.");
            document.form.textbox.focus();
            return false;
        }
}
</script>
</pre>
After validation, form action tag will redirect you to the given page.<br />
<br />
<b>Thanks</b><br />
If you have any query regarding Blogging or adsense then you are welcome. just contact me from the contact form. we will try to response you as quickly as possible.<br />
Validate form from the bed word. <br />
<br />
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</ul>
</div>

How to Validate Bed Words in input fields while form submitting.

In this Tutorial, we are going to learn how to protect our form from unexpected or inappropriate words from the outside client or users. S...

+ Read More »

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