Dynamically including multiple files within php for image descriptions
Working on implementing image descriptions to a php run gallery and can't seem to figure out how to call each text file for each individual image. I would need to place a div in the code for the image and then call the include.
//total number of images
$total = 77;
//max number of thumbnails per page
$max = 9;
//what image do we want to start from?
$startcount = $_GET["start"];
//if there is not a defined starting image, we start with the first
if(empty($startcount))
{
$startcount = 0;
}
//start off the loop at 1
$loop = 1;
//start the loop
while($loop <= $max)
{
//for the picture labels
$num = $startcount + $loop;
if($num > $total)
{
$num = $num - 1;
break;
}
// Add class="last" to every third list item
if(is_int($num / 3))
{
$last = ' class="last"';
}
else
{
$last = "";
}
//the code for the image
echo '
<li'.$last.'><a href="images/portfolio/pic-'.$num.'.jpg" rel="milkbox[gall1]"><img src="images/portfolio/thumbs/pic-'.$num.'-thumb.jpg" width="256" height="138" alt="Thumbnail of image '.$num.'" /></a><div>'.$num.'</div></li>';
I see that I can call the text files by number using '.$num.'开发者_C百科 (I have 77 individual text files with a phrase in each) but how do I tell it to call the files?
Assuming the description files are named something like "description_$num.txt", you can simply use readfile
.
echo "<li${last}><a href='images/portfolio/pic-${num}.jpg' rel='milkbox[gall1]'>
<img src='images/portfolio/thumbs/pic-${num}-thumb.jpg' width='256'
height='138' alt='Thumbnail of image ${num}'/>
</a><div>";
readfile("description_${num}.txt");
echo '</div></li>';
Note that you don't "call" files in PHP, you either include them (which interprets them as scripts) or read them (which dumps them to the output).
For each file you need to do something like that:
<?php
$f=fopen($file,'r');
$data='';
while(!feof($f))
$data.=fread($f,$size);
fclose($f);
// do whatever you want with the file content.
?>
I made use of file_get_contents, and split the output a bit so you can more easily modify it:
<?php
$total = 77;
$max = 9;
$startcount = $_GET["start"];
$loop = 1;
if(empty($startcount)) $startcount = 0;
while($loop <= $max)
{
$num = $startcount + $loop;
if($num > $total)
{
$num--;
break;
}
$last = ($num % 3 == 0 ? ' class="last"' : '');
$output = "<li $last>";
$output .= "<a href=\"images/portfolio/pic-$num.jpg\" rel=\"milkbox[gall1]\">";
$output .= "<img src=\"images/portfolio/thumbs/pic-$num-thumb.jpg\" width=\"256\" height=\"138\" alt=\"Thumbnail of image $num\">";
$output .= "</a>";
$output .= "<div>";
$output .= file_get_contents("textfile-" . $num . ".txt"); // assuming this is where you want the phrase
$output .= "</div>";
$output .= "</li>";
echo $output;
}
?>
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