Tilted Forum Project Discussion Community  

Go Back   Tilted Forum Project Discussion Community > Interests > Tilted Technology


 
 
LinkBack Thread Tools
Old 04-23-2006, 07:17 PM   #1 (permalink)
Loves my girl in thongs
 
arch13's Avatar
 
Location: North of Mexico, South of Canada
{PHP} Prev Next code for a gallery

Edit: Got it working. Please see my post below. I edited the php in this post to show the working function.

Reference Page:
http://www.arch13.com/index.php?id=brewery&id2=2

I have a function I found that I can't seem to modify to save my life. I'd like to humbly ask for help from the TFP members...

I am trying to get a page to print < 1 >, where clicking on either "arrow" takes you to the next page (In this case an image)

The first error occurs at line two, where it does not like the "{"
The basic code follows:

PHP Code:
  function navigation($pre_href $post_href=''$num_items$items_per_page$active$nearby$threshold)
{
    
#  is the ellipse character: "..."
    
$space '<span class="spacer">  '."\n\t".'</span>';

    
# There's no point in printing this string if there are no items,
    # Or if they all fit on one page.
    
if ($num_items && $num_items $items_per_page)
    {
        
# STEP 1:
        # Force variables into certain values.

        # $items_per_page can't be smaller than 1!
        # Also, avoid division by zero later on.
        
$items_per_page max($items_per_page1);

        
# Calculate the number of listing pages.
        
$total ceil($num_items/$items_per_page);

        
# $active can't be higher than $total or smaller than 1!
        
$active maxmin($active,$total), 1);

        
# STEP 2:
        # Do the rest.

        # Get the sequence of pages to show links to.
        
$pages navigationSequence($total$active$nearby$threshold);
        
        
# Print a descriptive string.
        
$first = ($active-1)*$items_per_page 1;
        
$last  min($first+$items_per_page-1$num_items);
        if (
$first == $last)
            
$listing $first;
        else
            
#  is the EN dash, the proper hyphen to use.
            
$listing $first.''.$last;
        
$r '<p class="navigation">'."\n\tShowing $listing of $num_items<br />\n";
    
        
# Initialize the list of links.
        
$links = array();
    
        
# Add "previous" link.
        
if ($active && $total 1)
            
$links[] = '<a href="'.$pre_href.($active-1).$post_href.
                       
'" class="prev" title="Previous">&laquo;</a>';
    
        
# Decide how the each link should be presented.
        
for($i=0$i<sizeof($pages); $i++)
        {
            
# Current link.
            
$curr $pages[$i];

            
# See if we should any $spacer in connection to this link.
            
if ($i>AND $i<sizeof($pages)-1)
            {
                
$prev $pages[$i-1];
                
$next $pages[$i+1];

                
# See if we should any $spacer *before* this link.
                # (Don't add one if the last link is already a spacer.)
                
if ($prev $curr-AND $links[sizeof($links)-1] != $space)
                    
$links[] = $space;
            }

            
# Add the link itself!
            # If the link is not the active page, link it.
            
if ($curr != $active)
                
$links[] = '<a href="'.$pre_href.$curr.$post_href.'">'.$curr.'</a>';
            
# Else don't link it.
            
else
                
$links[] = '<strong class="active">'.$active.'</strong>';

            if (
$i>AND $i<sizeof($pages)-1)
            {
                
# See if we should any $spacer *after* this link.
                # (Don't add one if the last link is already a spacer.)
                
if ($next $curr+AND $links[sizeof($links)-1] != $space)
                    
$links[] = $space;
            }
        }
    
        
# Add "next" link.
        
if ($active $total && $total 1)
            
$links[] = '<a href="'.$pre_href.($active+1).$post_href.
                       
'" class="next" title="Next">&raquo;</a>';
    
        
# Put it all together.
        
$r .= "\t".implode($links"\n\t")."\n</p>\n";
        
$r str_replace("\n\t".$space."\n\t"$space$r);

        return 
$r;
    }
    else
        return 
false;

This worries me also, but I can't even get the script to get far enough to see if it works:
PHP Code:
$pre_href='index.php?id=brewery&id2=' 
It's spitting out errors like crazy!
Mostly syntax based. I'm what they call "Know just enough to screw it up"

I just want next and previous links for a photo gallery!
__________________
Seen on an employer evaluation:

"The wheel is turning but the hamsters dead"
____________________________
Is arch13 really a porn diety ? find out after the film at 11.
-Nanofever

Last edited by arch13; 04-25-2006 at 06:43 PM..
arch13 is offline  
Old 04-25-2006, 10:29 AM   #2 (permalink)
Insane
 
trache's Avatar
 
Quote:
# See if we should any $spacer in connection to this link.
if ($i>0 AND $i<sizeof($pages)-1)
{
I'm no PHP guru, however I don't recall ever seeing the word "AND" in a PHP if/then/else statement. Change it to '&&'. In fact, I see 'AND' throughout. Change them all.

You could always wrap your conditions in brackets to isolate them from any other tests. That's what I do, anyway. It makes it easier to read and understand what is being tested.

One thing I do to make sure I'm debugging the correct code (sometimes PHP errors are hard to track because of the output you actually get on your page) is just insert "print "boo"" or whatever to track where in the execution pipeline my code is at the moment. PHP is pretty good at telling you what line number it messed up on, but sometimes is the line you don't have to change to debug your program.
__________________
"You looked at me as if I was eating runny eggs in slow motion." - Gord Downie of The Tragically Hip
trache is offline  
Old 04-25-2006, 05:53 PM   #3 (permalink)
Loves my girl in thongs
 
arch13's Avatar
 
Location: North of Mexico, South of Canada
I got the function working.

It's located here:
http:www.arch13.com/prevnext.php

The code to print the links is:
PHP Code:
$pre_href 'index.php?id=brewery/brewery&id2=';
$post_href '';
$page_no $HTTP_GET_VARS['id2'];
print 
navigation($pre_href$post_href121103$page_no); 
However, I just want it to print < 5 >, etc where the number is the active page, and the arrows are for next and previous.

I edited the first post to show the function in a working form.
Any ideas are greatly appreciated.
__________________
Seen on an employer evaluation:

"The wheel is turning but the hamsters dead"
____________________________
Is arch13 really a porn diety ? find out after the film at 11.
-Nanofever

Last edited by arch13; 04-25-2006 at 06:42 PM..
arch13 is offline  
Old 04-26-2006, 01:55 PM   #4 (permalink)
Insane
 
trache's Avatar
 
Quick and dirty? Take out the code that references the actual prev/next page numbers leaving the code that displays or appends the current page number to the line of HTML you output from that function.
__________________
"You looked at me as if I was eating runny eggs in slow motion." - Gord Downie of The Tragically Hip

Last edited by trache; 04-26-2006 at 01:58 PM..
trache is offline  
Old 05-01-2006, 12:35 PM   #5 (permalink)
Loves my girl in thongs
 
arch13's Avatar
 
Location: North of Mexico, South of Canada
Quote:
Originally Posted by trache
Quick and dirty? Take out the code that references the actual prev/next page numbers leaving the code that displays or appends the current page number to the line of HTML you output from that function.
Do you mean this area?
This seems to be what prints the adjoining numbers to the current page.


PHP Code:
            # See if we should any $spacer in connection to this link.
            
if ($i>AND $i<sizeof($pages)-1)
            {
                
$prev $pages[$i-1];
                
$next $pages[$i+1];

                
# See if we should any $spacer *before* this link.
                # (Don't add one if the last link is already a spacer.)
                
if ($prev $curr-AND $links[sizeof($links)-1] != $space)
                    
$links[] = $space;
            }

            
# Add the link itself!
            # If the link is not the active page, link it.
            
if ($curr != $active)
                
$links[] = '<a href="'.$pre_href.$curr.$post_href.'">'.$curr.'</a>';
            
# Else don't link it.
            
else
                
$links[] = '<strong class="active">'.$active.'</strong>';

            if (
$i>AND $i<sizeof($pages)-1)
            {
                
# See if we should any $spacer *after* this link.
                # (Don't add one if the last link is already a spacer.)
                
if ($next $curr+AND $links[sizeof($links)-1] != $space)
                    
$links[] = $space
__________________
Seen on an employer evaluation:

"The wheel is turning but the hamsters dead"
____________________________
Is arch13 really a porn diety ? find out after the film at 11.
-Nanofever
arch13 is offline  
Old 05-01-2006, 08:33 PM   #6 (permalink)
Insane
 
trache's Avatar
 
That would be it. Put /* */ around it so you can comment it out but leave it in the code if you want to use it later.
__________________
"You looked at me as if I was eating runny eggs in slow motion." - Gord Downie of The Tragically Hip
trache is offline  
 

Tags
code, gallery, php, prev

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 02:53 PM.

Tilted Forum Project

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
© 2002-2012 Tilted Forum Project

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360