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| powelly |
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powelly
World Chat Champion
Joined: 29 May 2007
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 Posted: 15:37 - 06 Feb 2009  Post subject: [PHP] display files in order |
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I have a webcam that uploads an image to a folder every minute, this files are named as follows:
snapshot-2009-02-02-18-25-02.jpg
Im using the following code to display all the images from a given date (currently hardcoded as $date)
| Code: | <?php
$date = "2009-02-02";
if ($handle = opendir('../../webcam/')) {
while (false !== ($file = readdir($handle))) {
if ($file != "." && $file != "..") {
if (eregi('2009-02-02', $file)) {
$page_name = $file;
//$page_name=substr($file, 0, strpos($file, "."));
echo "<img src='../../webcam/$page_name' width='160'/>";
}
}
}
}
closedir($handle);
?> |
However the output does not display the images in order, is there anyway to get round this based on either the filename or the files timestamp?
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Yamaha RXS 100 > Gilera Runner 50 > Suzuki SV650SY |
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| Kickstart |
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Kickstart
The Oracle
Joined: 04 Feb 2002
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Posted: 15:59 - 06 Feb 2009  Post subject: |
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Hi
I would do your directory command and stick the results into an array and then look through the array to output it.
Eg.
| Code: |
<?php
$date = "2009-02-02";
$pages=array();
if ($handle = opendir('../../webcam/')) {
while (false !== ($file = readdir($handle))) {
if ($file != "." && $file != "..") {
if (eregi('2009-02-02', $file)) {
$pages[] = $file;
}
}
}
}
rsort($pages);
foreach($pages as $page_name)
{
echo "<img src='../../webcam/$page_name' width='160'/>";
}
closedir($handle);
?>
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Not tried test running it but that should work.
All the best
Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing |
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| rc211v |
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rc211v
Nitrous Nuisance
Joined: 08 Oct 2007
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| Posted: 16:27 - 06 Feb 2009 Post subject: |
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| Code: | | while (false !== ($file = readdir($handle))) |
that's a weird way of constructing a conditional statement.
I always advice my students from doing it this way, I don't know why though.
Anyway, yeah, same as mentioned above. Go through the directory and place the filenames into an array. You can then sort the array, and use it to display your images in order.
I don't know if PHP comes with a built-in sorting function, but there are lots of algorithms out there you can use. Bubble sort maybe? 
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| Kickstart |
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Kickstart
The Oracle
Joined: 04 Feb 2002
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| powelly |
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powelly
World Chat Champion
Joined: 29 May 2007
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Old Thread Alert!
The last post was made 17 years, 232 days ago. Instead of replying here, would creating a new thread be more useful? |
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