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Archives for: July 2009, 27

27/07/09

Permalink 09:23:34 pm, Categories: Shropshire talk  

A water cooler company

Hello people, here is a water cooler company in Shropshire

Wenlock Water coolers » .

You can buy or rent bottled/mains water coolers online.


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Permalink 08:27:27 pm, Categories: General IT articles  

How to force a download using php

Here is a handy function for forcing a download a file in any folder on the server that is readable by your php script.

PHP:

function send_file($path) {
    session_write_close();
    ob_end_clean();
    if (!is_file($path) || connection_status()!=0)
        return(FALSE);
 
    //to prevent long file from getting cut off from     //max_execution_time
 
    set_time_limit(0);
 
    $name=basename($path);
 
    //filenames in IE containing dots will screw up the
    //filename unless we add this
 
    if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE"))
        $name = preg_replace('/\./', '%2e', $name, substr_count($name, '.') - 1);
 
    //required, or it might try to send the serving     //document instead of the file
 
    header("Cache-Control: ");
    header("Pragma: ");
    header("Content-Type: application/octet-stream");
    header("Content-Length: " .(string)(filesize($path)) );
    header('Content-Disposition: attachment; filename="'.$name.'"');
    header("Content-Transfer-Encoding: binary\n");
 
    if($file = fopen($path, 'rb')){
        while( (!feof($file)) && (connection_status()==0) ){
            print(fread($file, 1024*8));
            flush();
        }
        fclose($file);
    }
    return((connection_status()==0) and !connection_aborted());
}

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Permalink 02:09:25 pm, Categories: General IT articles  

Image button submit value

For example, if you have a image button like

Code:

<input type="image" name="Submit" value='Register' class="btn" src="images/register_form_btn.jpg" />

When the form is submitted via POST. there is nothing for $_POST[’Submit’]. However, you will have $_POST[’Submit_x’] and $_POST[’Submit_y’] that records the x and y coordinates of the click.

You can not do

Code:

if($_POST['Submit_x'] ) {
  //do something
}

that’s because a user might press the Enter key to submit the form. In this case, $_POST[’Submit_x’] and $_POST[’Submit_y’] are both 0!!

A convenient solution is to put a hidden field such as

Code:

<input type='hidden' name='form_sent' value='1'/>

within the form. Then in your php code

Code:

if($_POST['form_sent'] ){
 //process form
}

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