jwv

set @i = 0;
UPDATE table_name SET field = (@i:=@i+1)

jwv

function generateQRCodeFromUrl($your_url, $width, $height, $file) {
 
        $your_url    = urlencode($your_url);
        $url  = 'http://chart.apis.google.com/chart?chs='.$width.'x'.$height.'&cht=qr&chl='.$your_url;
 
        // initialize cURL settings
        $ch = curl_init ($url);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);

jwv

function to_slug($string){
    return strtolower(trim(preg_replace('/[^A-Za-z0-9-]+/', '-', $string)));
}

jwv

function splitText($text, $maxLength)
{
    /* Make sure that the string will not be longer
       than $maxLength.
     */
    if(strlen($text) > $maxLength)
    {
        /* Trim the text to $maxLength characters */
        $text = substr($text, 0, $maxLength - 1);
 

jwv

function splitTextByWords($str, $words = 10)
{
    $arr = preg_split("/[\s]+/", $str, $words+1);
    $arr = array_slice($arr, 0, $words);
    return join(' ', $arr);
}

jwv

jQuery({n: 0}).animate({n: 110}, {
	duration: 1000,
	easing:'swing', // can be anything
	step: function() { // called on every step
		// Update the element's text with rounded-up value:
		$('#el').text(Math.ceil(this.n) + "%");
	}
});

jwv

function crawlerDetect($user_agent)
{
  $crawlers_agents = 'Google|msnbot|Rambler|Yahoo|AbachoBOT|accoona|AcioRobot|ASPSeek|CocoCrawler|Dumbot|FAST-WebCrawler|GeonaBot|Gigabot|Lycos|MSRBOT|Scooter|AltaVista|IDBot|eStyle|Scrubby';
  return strpos($crawlers_agents , $USER_AGENT) === false)?0:1;  
}

jwv

<?php 	
function highlight($astring, $aword) {
	if (!is_array ($aword) || !is_string ($astring) || empty ($aword) ) {
    	return false;
        }

        $aword = implode ('|', $aword);
        return preg_replace ('@\b('.$aword.')\b@si', '<strong style="background-color:red">$1</strong>', $astring);
}

jwv

function distance($lat1, $lon1, $lat2, $lon2, $unit) { 

  $theta = $lon1 - $lon2;
  $dist = sin(deg2rad($lat1)) * sin(deg2rad($lat2)) +  cos(deg2rad($lat1)) * cos(deg2rad($lat2)) * cos(deg2rad($theta));
  $dist = acos($dist);
  $dist = rad2deg($dist);
  $miles = $dist * 60 * 1.1515;
  $unit = strtoupper($unit);

  if ($unit == "K") {

jwv

function downloadFile($file){
        $file_name = $file;
        $mime = 'application/force-download';
  header('Pragma: public'); 	// required
	header('Expires: 0');		// no cache
	header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
	header('Cache-Control: private',false);
	header('Content-Type: '.$mime);
	header('Content-Disposition: attachment; filename="'.basename($file_name).'"');
	header('Content-Transfer-Encoding: binary');