PHP-Version Check code

 if (version_compare(phpversion(), '5.0.0', '>=') !== true) {  
   exit('This website runs with PHP5... You version is <b>' . phpversion() . '</b>.Please upgrade');  
 }  

PHP-get User Browser

 <?php  
 function get_user_browser()  
 {  
   $u_agent = $_SERVER['HTTP_USER_AGENT'];  
   $ub = '';  
   if(preg_match('/MSIE/i',$u_agent))  
   {  
     $ub = "ie";  
   }  
   elseif(preg_match('/Firefox/i',$u_agent))  
   {  
     $ub = "firefox";  
   }  
   elseif(preg_match('/Safari/i',$u_agent))  
   {  
     $ub = "safari";  
   }  
   elseif(preg_match('/Chrome/i',$u_agent))  
   {  
     $ub = "chrome";  
   }  
   elseif(preg_match('/Flock/i',$u_agent))  
   {  
     $ub = "flock";  
   }  
   elseif(preg_match('/Opera/i',$u_agent))  
   {  
     $ub = "opera";  
   }  
   return $ub;  
 }  
 ?>  

Social Engine 4-Finding name of widget and Calling/Running a widget by custom code via name

First things first

1. In the backend select layout=>layout editor

Select the page on which your widget is currently placed

Or

If you know the name of your widget find it in concerned module on right hand side

You can use my technique for the same

For example we are looking for the widget "Statistics" Find the plugin text in admin using "find text tool(Ctrl+F)" of your browser and search for the same under "Available Blocks"

2. Once yo know the widget and its module for example for above mentioned  widget we find it under "Core Module"

Moving Back to code

under

/application/modules/core/settings (considering our example for Core Module and Statistics Widget)

open file content.php

find the array of widget Statistics there like

 array(  
 'title'=>'statistics',  
 'description'=>'',  
 'category'=>'core',  
 'type'=>'widget',  
 'name'=>'core.statistics',  
 'defaultParams'=>array(  
 'title'=>'Statistics'  
 ),  
 'requirements'=>array(  
 'no-subject',  
 ),  
 );  

Now we need the name attribute to call our widget in code as

 <?php  
 echo $this->content()->renderWidget('core.statistics';)  
 ?>  

other examples can be

content()->renderWidget('core.ad-campaign') ?>

content()->renderWidget('user.home-photo') ?>

Javascript code to get a string sliced till last occurance of a charcter

Javascript code to get a string sliced till last occurrence of a character function
 //javascript
getStringTillLastCharcter(str,chr)
{
    var flag=0;
    var lastpos;
    //alert(str.length);
    for(i=0;i < str.length; i++ )  {
        if(str.charAt(i)==chr)
            {
                lastpos=i+1;
            }
    }
    //alert(lastpos);
    return str.slice(0,lastpos);
}

Here is a code to get the string till the last occurance of a charcter.....

A file upload helpful php code

if(isset($_POST['sendmail']))
{
    //echo "

";
    //print_r($_POST);
    //print_r($_FILES);
    //echo "

";

    //$attachment = chunk_split(base64_encode(file_get_contents($_POST['upload'])));

    //Get the uploaded file information
    $name_of_uploaded_file =
    basename($_FILES['upload']['name']);
    //echo $name_of_uploaded_file;
    //get the file extension of the file
    $type_of_uploaded_file =substr($name_of_uploaded_file,strrpos($name_of_uploaded_file, '.') + 1);
    //echo $type_of_uploaded_file;
    $size_of_uploaded_file =$_FILES["upload"]["size"]/1024;
    //echo $size_of_uploaded_file;
    $max_allowed_file_size = 100; // size in KB
    $allowed_extensions = array("doc", "pdf", "docx","txt";
    //Validations
    if($size_of_uploaded_file > $max_allowed_file_size )
    {
        $errors .= "\n Size of file should be less than $max_allowed_file_size";
    }
    //------ Validate the file extension -----
    $allowed_ext = false;
    for($i=0; $i    {
        if(strcasecmp($allowed_extensions[$i],$type_of_uploaded_file) == 0)
        {
            $allowed_ext = true;
        }
    }
    if(!$allowed_ext)
    {
        $errors .=
        " Only the following file types are supported: ".implode(',',$allowed_extensions);
    }

    if(!isset($errors))
    {
        move_uploaded_file($_FILES["upload"]["tmp_name"],WP_CONTENT_DIR.'/uploads/'.basename($_FILES['upload']['name']));
        $to=  get_option('ugmm_career_email');
        $subject=get_option('ugmm_career_upload_field');
        $message="File uploaded by".get_option('ugmm_career_upload_field');
        $headers = 'From:upload<'.$to.'>';
        $attachments = array(WP_CONTENT_DIR ."/uploads/".$_FILES["upload"]["name"]);
        wp_mail($to,$subject,$message,$headers,$attachments);
        $sentmail=true;
    }
    else
    $sentmail=false;
}
?>

Generate Excel Report with Php and Mysql using code

Step 1. Include phpexcel class file along with your config file and make its object with excel file name passed parameter in constructor. You can check for  error in next line as shown

1	require_once("excelwriter.class.php");

2

3	$excel=new ExcelWriter("report.xls");

4

5	if($excel==false)

6	echo $excel->error;

Step 2. Now time to fetch data from mysql database. Before fetch data, call excel header having columns as values of array.

01	// this will create heading of each column in excel file

02

03	$myArr=array("S.No.","Company Name","Email","City","Username","Reg. Date");

04	$excel->writeLine($myArr);

05

06	// now fetch data from database table, there is a new line create each time loop runs

07

08	$qry=mysql_query("select * from customer");

09	if($qry!=false)

10

{

11

$i=1;

12	while($res=mysql_fetch_array($qry))

13

{

14	$myArr=array($i,$res['company_name'],$res['email'],...);

15	$excel->writeLine($myArr);

16

$i++;

17

}

18

}

Step 3.  Create link to generate excel file.

1	<a href="javascript:void(0);" onClick="download();">Download Excel Reporta>

and here download function pointing to excel file

1

 Download Code Here