Matt Sandy's Blog » programming

Return a Date Range Array in PHP

admin — Wed, 16 Nov 2011 15:41:43 +0000

I think this code might come in handy for me as well as other programmers. It lets you pass two dates and returns an array containing the range of dates between them. I had found code previously, but there was a glitch and so I decided to just write my own. Copy and paste version here.

function createDateRangeArray($startDate,$endDate)
{
$range[0] = $startDate;
$startDateInt = preg_replace(‘/[^0-9]/’, ”, $strDateFrom);
$endDateInt = preg_replace(‘/[^0-9]/’, ”, $strDateTo);
if($endDateInt>$startDateInt)
{
while($range[count($range)-1]!=$endDate)
{
list($year,$month,$day) = explode("-",$range[count($range)-1]);
$range[count($range)] = date("Y-m-d", mktime(0, 0, 0, $month, $day+1, $year));
}
}
return $range;
}

Numeric equivalent of an Excel column name

admin — Wed, 29 Sep 2010 22:43:31 +0000

I wrote this little php function to see how small I could make the code. I think I did pretty well and figured I would post it here as to not forget in case I needed to actually use it some day. There might be a better way, but I had some fun with this.

function b($b){$l=strlen($b);while($i<$l){$c+=(base_convert($b[$i],36,10)-9)*pow(26,$l-1-$i);$i++;}return $c;}

Use PHP to Display EXIF Data from Flickr

admin — Sun, 19 Jul 2009 05:50:37 +0000

Speacial Note: If you want this in a format you can copy/paste click here.

I recently added EXIF data to my photo pages in my portfolio with information like Camera used and the ISO setting. I decided it would be good to share this with the PHP community in case anyone was curious or is having trouble. I don’t work with XML too often, so there might be a more efficient way of doing this.

This is just a function for displaying the particular EXIF data. You should look at the output in case you want to change the information from clean to raw for particular things, or add data for checking if there is a clean and if not then return the raw data.

function grabExif($id)
{
$url = "http://api.flickr.com/services/rest/?method=flickr.photos.getExif&api_key=YOUR_API_KEY&photo_id=";
$url .= "$id";
$content = file_get_contents("$url");
$xml = new SimpleXMLElement($content);
//echo $content;
foreach ($xml->photo->exif as $exifData)
{
foreach($exifData->attributes() as $a => $b) {
//echo $a,’="’,$b,"\"\n";
if(($b=="Model")&&($a=="label"))
{
$model[count($model)] = (string) $exifData->raw;
}
else if(($b=="Make")&&($a=="label"))
{
$make[count($make)] = (string) $exifData->raw;
}
else if(($b=="ISO Speed")&&($a=="label"))
{
$ISO[count($ISO)] = (string) $exifData->raw;
}
else if(($b=="Aperture")&&($a=="label"))
{
$aperture[count($aperture)] = (string) $exifData->clean;
}
else if(($b=="Exposure")&&($a=="label"))
{
$shutterSpeed[count($shutterSpeed)] = (string) $exifData->raw;
}
}
}
if($model[0]!="")
{
return "Taken with the " . $model[0] . " at " . $aperture[0] . " with an exposure time of " . $shutterSpeed[0] . "s using ISO" . $ISO[0];
}
else
{
return "No exif data provided";
}
}

Just an FYI, getting a syntax highlighter running in WordPress properly can get dicey. I went with Dean’s Code Highlighter and added

$content = htmlspecialchars_decode($content);

to line 126 of deans_code_highlighter.php under

function ch_the_content_filter($content)

in order to display the ampersands properly. Sometimes WordPress thinks it knows best when it comes to formatting posts. I may update this post later, but this should be enough to go on for all of you PHP/Flickr developers out there.