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displaying random images with an appropriate caption [message #175931] Wed, 09 November 2011 03:34 Go to next message
paris2venice is currently offline  paris2venice
Messages: 9
Registered: October 2011
Karma: 0
Junior Member
Is there any way to write something that will choose not just a random
image but the random image and its caption as a pair?

This is my code for my random images as it exists now but,
unfortunately, it doesn't work very well if I don't have a caption
with the photo (even if just to credit the photographer):


<div style="float:right; width:363px;
margin: 1.0em 2.75em 1.0em 1.0em; padding: 0.25em;
text-align:center; background-color: #fff">
<?php
$dir="/library/images/slideshow";
$images = array("$dir/farm-640x480.gif" ,
"$dir/ranch-640x480.gif" ,
"$dir/plantation-640x480.gif");
$format=' <img src="%s"
class="rounded-corners"
style="width:360px;height:270px" />';
printf("$format", $images[array_rand($images)]);
echo "\n";
?>
</div>

Thanks for any help and/or suggestions.
Re: displaying random images with an appropriate caption [message #175932 is a reply to message #175931] Wed, 09 November 2011 03:51 Go to previous messageGo to next message
Jerry Stuckle is currently offline  Jerry Stuckle
Messages: 2598
Registered: September 2010
Karma: 0
Senior Member
On 11/8/2011 10:34 PM, paris2venice wrote:
> Is there any way to write something that will choose not just a random
> image but the random image and its caption as a pair?
>
> This is my code for my random images as it exists now but,
> unfortunately, it doesn't work very well if I don't have a caption
> with the photo (even if just to credit the photographer):
>
>
> <div style="float:right; width:363px;
> margin: 1.0em 2.75em 1.0em 1.0em; padding: 0.25em;
> text-align:center; background-color: #fff">
> <?php
> $dir="/library/images/slideshow";
> $images = array("$dir/farm-640x480.gif" ,
> "$dir/ranch-640x480.gif" ,
> "$dir/plantation-640x480.gif");
> $format='<img src="%s"
> class="rounded-corners"
> style="width:360px;height:270px" />';
> printf("$format", $images[array_rand($images)]);
> echo "\n";
> ?>
> </div>
>
> Thanks for any help and/or suggestions.

A better question is - how do you want to relate the caption to its
picture? Once you've decided how you want to relate them on your
server, displaying the related caption is easy.

It could be a database... file name similarity... different
directories... about anything you want.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
==================
Re: displaying random images with an appropriate caption [message #175934 is a reply to message #175932] Wed, 09 November 2011 03:54 Go to previous messageGo to next message
paris2venice is currently offline  paris2venice
Messages: 9
Registered: October 2011
Karma: 0
Junior Member
On Nov 8, 7:51 pm, Jerry Stuckle <jstuck...@attglobal.net> wrote:
> On 11/8/2011 10:34 PM, paris2venice wrote:
>
>
>
>
>
>
>
>
>
>> Is there any way to write something that will choose not just a random
>> image but the random image and its caption as a pair?
>
>> This is my code for my random images as it exists now but,
>> unfortunately, it doesn't work very well if I don't have a caption
>> with the photo (even if just to credit the photographer):
>
>> <div style="float:right; width:363px;
>>        margin: 1.0em 2.75em 1.0em 1.0em; padding: 0.25em;
>>        text-align:center; background-color: #fff">
>> <?php
>>           $dir="/library/images/slideshow";
>>           $images = array("$dir/farm-640x480.gif" ,
>>                                  "$dir/ranch-640x480.gif" ,
>>                            "$dir/plantation-640x480.gif");
>>           $format='<img src="%s"
>>                             class="rounded-corners"
>>                             style="width:360px;height:270px" />';
>>           printf("$format", $images[array_rand($images)]);
>>           echo "\n";
>> ?>
>> </div>
>
>> Thanks for any help and/or suggestions.
>
> A better question is - how do you want to relate the caption to its
> picture?  Once you've decided how you want to relate them on your
> server, displaying the related caption is easy.
>
> It could be a database... file name similarity... different
> directories... about anything you want.
>
> --
> ==================
> Remove the "x" from my email address
> Jerry Stuckle
> JDS Computer Training Corp.
> jstuck...@attglobal.net
> ==================

I just want the captions in an array just like the filenames for the
images. I just don't know how to make the randomizer get the match
from each array.
Re: displaying random images with an appropriate caption [message #175935 is a reply to message #175931] Wed, 09 November 2011 03:39 Go to previous messageGo to next message
paris2venice is currently offline  paris2venice
Messages: 9
Registered: October 2011
Karma: 0
Junior Member
On Nov 8, 7:34 pm, paris2venice <paris2ven...@gmail.com> wrote:
> Is there any way to write something that will choose not just a random
> image but the random image and its caption as a pair?
>
> This is my code for my random images as it exists now but,
> unfortunately, it doesn't work very well if I don't have a caption
> with the photo (even if just to credit the photographer):
>
> <div style="float:right; width:363px;
>       margin: 1.0em 2.75em 1.0em 1.0em; padding: 0.25em;
>       text-align:center; background-color: #fff">
> <?php
>          $dir="/library/images/slideshow";
>          $images = array("$dir/farm-640x480.gif" ,
>                                 "$dir/ranch-640x480.gif" ,
>                           "$dir/plantation-640x480.gif");
>          $format='      <img src="%s"
>                            class="rounded-corners"
>                            style="width:360px;height:270px" />';
>          printf("$format", $images[array_rand($images)]);
>          echo "\n";
> ?>
> </div>
>
> Thanks for any help and/or suggestions.

I neglected to mention that I am not using MySQL or any other database
so I can't use that (at least not right now). Thanks.
Re: displaying random images with an appropriate caption [message #175936 is a reply to message #175935] Wed, 09 November 2011 07:51 Go to previous messageGo to next message
houghi is currently offline  houghi
Messages: 45
Registered: September 2011
Karma: 0
Member
paris2venice wrote:
> On Nov 8, 7:34 pm, paris2venice <paris2ven...@gmail.com> wrote:
>> Is there any way to write something that will choose not just a random
>> image but the random image and its caption as a pair?
>>
>> This is my code for my random images as it exists now but,
>> unfortunately, it doesn't work very well if I don't have a caption
>> with the photo (even if just to credit the photographer):
>>
>> <div style="float:right; width:363px;
>>       margin: 1.0em 2.75em 1.0em 1.0em; padding: 0.25em;
>>       text-align:center; background-color: #fff">
>> <?php
>>          $dir="/library/images/slideshow";
>>          $images = array("$dir/farm-640x480.gif" ,
>>                                 "$dir/ranch-640x480.gif" ,
>>                           "$dir/plantation-640x480.gif");
>>          $format='      <img src="%s"
>>                            class="rounded-corners"
>>                            style="width:360px;height:270px" />';
>>          printf("$format", $images[array_rand($images)]);
>>          echo "\n";
>> ?>
>> </div>
>>
>> Thanks for any help and/or suggestions.
>
> I neglected to mention that I am not using MySQL or any other database
> so I can't use that (at least not right now). Thanks.

Put it all on one line. Put that in a file. Each line will be an image
with the caption. Then use whatever randomizer you want to include a
line.

houghi
--
> This is written under the influence of tv channel
> Some Channel (as there was nothing else on).
Re: displaying random images with an appropriate caption [message #175937 is a reply to message #175934] Wed, 09 November 2011 12:06 Go to previous messageGo to next message
Denis McMahon is currently offline  Denis McMahon
Messages: 634
Registered: September 2010
Karma: 0
Senior Member
On Tue, 08 Nov 2011 19:54:42 -0800, paris2venice wrote:

> I just want the captions in an array just like the filenames for the
> images. I just don't know how to make the randomizer get the match from
> each array.

given two text files, one with a list of image paths and names based on
webroot, the other with a list of captions, so that 7th caption in the
caption file goes with the 7th url in the images file, and images and
captions are each listed on a single line in their respective files:

<?php

$flags = FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES;

$captions = file("captionfile",$flags); // read array of captions, 1 per
line
$images = file("imagesfile", $flags); // read array of filenames, 1 per
line

$index = rand(0, count($captions)-1); // get a random index

$imgfile = $images[$index];
if (strpos($mgfile,"/")!==0) $imgfile = "/" . $imgfile;
$captiontext = ucwords($captions[$index]);

echo <<<EOT

<p style="text-align:center;margin:0 auto">
<img src="http://www.myhost.domain{imgfile}" alt="{$captiontext}"><br>
{$captiontext}</p>

EOT;

?>

imagesfile might contain:

---8<--- cut here ---8<---
/dir/dir/myface.jpg
/dir2/clown.jpg

lorry.png

/dir/dir3/cat.gif
/dir/dir3/dog.gif

---8<--- cut here ---8<---

captionfile might contain:

---8<--- cut here ---8<---

a mugshot, so if you see me you'll know me
my clown face
the lorry I drive

my pet cat

the dog next door
---8<--- cut here ---8<---

Rgds

Denis McMahon
Re: displaying random images with an appropriate caption [message #175963 is a reply to message #175937] Fri, 11 November 2011 06:27 Go to previous messageGo to next message
paris2venice is currently offline  paris2venice
Messages: 9
Registered: October 2011
Karma: 0
Junior Member
On Nov 9, 4:06 am, Denis McMahon <denismfmcma...@gmail.com> wrote:
> On Tue, 08 Nov 2011 19:54:42 -0800, paris2venice wrote:
>> I just want the captions in an array just like the filenames for the
>> images. I just don't know how to make the randomizer get the match from
>> each array.
>
> given two text files, one with a list of image paths and names based on
> webroot, the other with a list of captions, so that 7th caption in the
> caption file goes with the 7th url in the images file, and images and
> captions are each listed on a single line in their respective files:
>
> <?php
>
> $flags = FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES;
>
> $captions = file("captionfile",$flags); // read array of captions, 1 per
> line
> $images = file("imagesfile", $flags); // read array of filenames, 1 per
> line
>
> $index = rand(0, count($captions)-1); // get a random index
>
> $imgfile = $images[$index];
> if (strpos($mgfile,"/")!==0) $imgfile = "/" . $imgfile;
> $captiontext = ucwords($captions[$index]);
>
> echo <<<EOT
>
> <p style="text-align:center;margin:0 auto">
> <img src="http://www.myhost.domain{imgfile}" alt="{$captiontext}"><br>
> {$captiontext}</p>
>
> EOT;
>
> ?>
>
> imagesfile might contain:
>
> ---8<--- cut here ---8<---
> /dir/dir/myface.jpg
> /dir2/clown.jpg
>
> lorry.png
>
> /dir/dir3/cat.gif
> /dir/dir3/dog.gif
>
> ---8<--- cut here ---8<---
>
> captionfile might contain:
>
> ---8<--- cut here ---8<---
>
> a mugshot, so if you see me you'll know me
> my clown face
> the lorry I drive
>
> my pet cat
>
> the dog next door
> ---8<--- cut here ---8<---
>
> Rgds
>
> Denis McMahon

Hi Denis,

Thanks a bunch for your help. I liked your solution a lot and tried
to implement it with only partial success. Below is the URL for a
test page of what I have implemented with your code. The page
appeared blank until I commented out the here document. I also
implemented var_dumps on the variables to be sure I was getting
accurate data.

http://www.geol.ucsb.edu/graduate/aa.php

I also corrected a couple of syntax errors but mostly the code is
exactly as in your code above.

This is what is commented out:

//echo <<<EOT
//<p style="text-align:center;margin:0 auto">
//<img src="http://www.geol.ucsb.edu{$imgfile}" alt="{$captiontext}" /
>
//<br />
//{$captiontext}</p>
//EOT;

As you can see, it appears fine with the here doc commented. I just
can't see what is wrong with the here doc. Thanks for any further
help.
Re: displaying random images with an appropriate caption [message #175965 is a reply to message #175963] Fri, 11 November 2011 10:50 Go to previous message
Denis McMahon is currently offline  Denis McMahon
Messages: 634
Registered: September 2010
Karma: 0
Senior Member
On Thu, 10 Nov 2011 22:27:43 -0800, paris2venice wrote:

> I also corrected a couple of syntax errors but mostly the code is
> exactly as in your code above.

Yeah, I used $mages where I should have used $images, and missed the $
from {$imgfile} in the heredoc.

> This is what is commented out:
>
> //echo <<<EOT
> //<p style="text-align:center;margin:0 auto"> //<img
> src="http://www.geol.ucsb.edu{$imgfile}" alt="{$captiontext}" /
>>
> //<br />
> //{$captiontext}</p>
> //EOT;
>
> As you can see, it appears fine with the here doc commented. I just
> can't see what is wrong with the here doc. Thanks for any further help.

All the heredoc does is wrap the image and caption in a centered
paragraph, html 4.01 type markup. It was an example of how to output the
caption and image. Did you try it (a) without the style attributes (b)
using a div instead?

I wasn't trying to generate markup and css that would fit neatly into
your existing page layout, I was generating a standalone paragraph.

http://www.sined.co.uk/tmp/randomPic.php
http://www.sined.co.uk/tmp/randomPic.txt (source)

Rgds

Denis McMahon
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