How I can handle this shortcode:
[my_gallery]
img01.jpg
img02.jpg
img03.jpg
img04.jpg
[/my_gallery]
I can't understand how to write a function, to handle image files name.
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1 Answer
Are you going to put newlines in there between each image? or just spaces? I'll put in both for this example, checking if there's a newline.
You would want something like this in your functions.php:
add_shortcode('my_gallery', 'gallery_function');
function gallery_function($atts, $code=''){
$files=preg_split( '/\s+/', $code ); // Added in from Jan's comment.
foreach($files as $img){
if($img=="")
continue; // ensures that no empty items from the split have entered in, since that is possible with the preg_split
//handle each filename in here.
}
}
It's not perfect.. if you use both spaces and newlines in your shortcode, it'll mess things up - though that could be dealt with in more detail inside the function.
Hope this helps.
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1With a regular expression you can split on either a newline or a space character.
preg_split( '/[\n ]+/', $code ), or even justpreg_split( '/\s+/', $code )to split on any whitespace character.Jan Fabry– Jan Fabry2011-05-26 15:42:13 +00:00Commented May 26, 2011 at 15:42 -
Thanks for that Jan, i'm not all that confident in my regex skills, so I opted not to go that route for fear of giving a faulty example. But yeah that would be the preferred route is to add in regex to cover different ways of doing it.Mike– Mike2011-05-26 16:08:09 +00:00Commented May 26, 2011 at 16:08
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Updated to include the preg_split with whitespace, then put in a check to ensure there was actually a potential file name in the loop.Mike– Mike2011-05-26 16:17:51 +00:00Commented May 26, 2011 at 16:17
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@Mike: If you use the
preg_split()you don't need to detect the marker either.Jan Fabry– Jan Fabry2011-05-26 16:19:31 +00:00Commented May 26, 2011 at 16:19 -
@Jan: Ah! Thanks :) I completely forgot about that, updated.Mike– Mike2011-05-26 16:39:15 +00:00Commented May 26, 2011 at 16:39