分页类代码,PHP代码库,德仔网

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代码分类
【PHP】分页类
作者:Dezai.CN / 发布于2011/6/11/ 470
<div><span style="color: rgb(0,0,0); font-weight: bold"><?php</span>
<span style="font-style: italic; color: rgb(128,128,128)">/**************************************************************************************
* Class: Pager
* Methods:
* findStart
* findPages
* pageList
* nextPrev
**************************************************************************************/</span>
<span style="color: rgb(0,0,0); font-weight: bold">class</span> Pager
<span style="color: rgb(102,204,102)">{</span>
<span style="font-style: italic; color: rgb(128,128,128)">/***********************************************************************************
* int findStart (int limit)
* Returns the start offset based on $_GET['page'] and $limit
***********************************************************************************/</span>
<span style="color: rgb(0,0,0); font-weight: bold">function</span> findStart<span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$limit</span><span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(177,177,0)">if</span> <span style="color: rgb(102,204,102)">(</span><span style="color: rgb(102,204,102)">(</span>!<a href="http://www.php.net/isset" target="_blank"><span style="color: rgb(0,0,102)">isset</span></a><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$_GET</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">'page'</span><span style="color: rgb(102,204,102)">]</span><span style="color: rgb(102,204,102)">)</span><span style="color: rgb(102,204,102)">)</span> || <span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$_GET</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">'page'</span><span style="color: rgb(102,204,102)">]</span> == <span style="color: rgb(255,0,0)">"1"</span><span style="color: rgb(102,204,102)">)</span><span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$start</span> = <span style="color: rgb(204,102,204)">0</span>;
<span style="color: rgb(0,0,255)">$_GET</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">'page'</span><span style="color: rgb(102,204,102)">]</span> = <span style="color: rgb(204,102,204)">1</span>;
<span style="color: rgb(102,204,102)">}</span>
<span style="color: rgb(177,177,0)">else</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$start</span> = <span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$_GET</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">'page'</span><span style="color: rgb(102,204,102)">]</span><span style="color: rgb(204,102,204)">-1</span><span style="color: rgb(102,204,102)">)</span> * <span style="color: rgb(0,0,255)">$limit</span>;
<span style="color: rgb(102,204,102)">}</span>

<span style="color: rgb(177,177,0)">return</span> <span style="color: rgb(0,0,255)">$start</span>;
<span style="color: rgb(102,204,102)">}</span>
<span style="font-style: italic; color: rgb(128,128,128)">/***********************************************************************************
* int findPages (int count, int limit)
* Returns the number of pages needed based on a count and a limit
***********************************************************************************/</span>
<span style="color: rgb(0,0,0); font-weight: bold">function</span> findPages<span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$count</span>, <span style="color: rgb(0,0,255)">$limit</span><span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$pages</span> = <span style="color: rgb(102,204,102)">(</span><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$count</span> % <span style="color: rgb(0,0,255)">$limit</span><span style="color: rgb(102,204,102)">)</span> == <span style="color: rgb(204,102,204)">0</span><span style="color: rgb(102,204,102)">)</span> ? <span style="color: rgb(0,0,255)">$count</span> / <span style="color: rgb(0,0,255)">$limit</span> : <a href="http://www.php.net/floor" target="_blank"><span style="color: rgb(0,0,102)">floor</span></a><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$count</span> / <span style="color: rgb(0,0,255)">$limit</span><span style="color: rgb(102,204,102)">)</span> + <span style="color: rgb(204,102,204)">1</span>;

<span style="color: rgb(177,177,0)">return</span> <span style="color: rgb(0,0,255)">$pages</span>;
<span style="color: rgb(102,204,102)">}</span>
<span style="font-style: italic; color: rgb(128,128,128)">/***********************************************************************************
* string pageList (int curpage, int pages)
* Returns a list of pages in the format of "?< [pages] > ?quot;
***********************************************************************************/</span>
<span style="color: rgb(0,0,0); font-weight: bold">function</span> pageList<span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$curpage</span>, <span style="color: rgb(0,0,255)">$pages</span><span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$page_list</span> = <span style="color: rgb(255,0,0)">""</span>;

<span style="font-style: italic; color: rgb(128,128,128)">/* Print the first and previous page links if necessary */</span>
<span style="color: rgb(177,177,0)">if</span> <span style="color: rgb(102,204,102)">(</span><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$curpage</span> != <span style="color: rgb(204,102,204)">1</span><span style="color: rgb(102,204,102)">)</span> && <span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$curpage</span><span style="color: rgb(102,204,102)">)</span><span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$page_list</span> .= <span style="color: rgb(255,0,0)">" <a href=<span style="color: rgb(0,0,153); font-weight: bold">\"</span>"</span>.<span style="color: rgb(0,0,255)">$_SERVER</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">'PHP_SELF'</span><span style="color: rgb(102,204,102)">]</span>.<span style="color: rgb(255,0,0)">"?page=1<span style="color: rgb(0,0,153); font-weight: bold">\"</span> title=<span style="color: rgb(0,0,153); font-weight: bold">\"</span>First Page<span style="color: rgb(0,0,153); font-weight: bold">\"</span> class='aPager'>&#171;</a> "</span>;
<span style="color: rgb(102,204,102)">}</span>

<span style="color: rgb(177,177,0)">if</span> <span style="color: rgb(102,204,102)">(</span><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$curpage</span><span style="color: rgb(204,102,204)">-1</span><span style="color: rgb(102,204,102)">)</span> > <span style="color: rgb(204,102,204)">0</span><span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$page_list</span> .= <span style="color: rgb(255,0,0)">"<a href=<span style="color: rgb(0,0,153); font-weight: bold">\"</span>"</span>.<span style="color: rgb(0,0,255)">$_SERVER</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">'PHP_SELF'</span><span style="color: rgb(102,204,102)">]</span>.<span style="color: rgb(255,0,0)">"?page="</span>.<span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$curpage</span><span style="color: rgb(204,102,204)">-1</span><span style="color: rgb(102,204,102)">)</span>.<span style="color: rgb(255,0,0)">"<span style="color: rgb(0,0,153); font-weight: bold">\"</span> title=<span style="color: rgb(0,0,153); font-weight: bold">\"</span>Previous Page<span style="color: rgb(0,0,153); font-weight: bold">\"</span> class='aPager'><</a> "</span>;
<span style="color: rgb(102,204,102)">}</span>

<span style="font-style: italic; color: rgb(128,128,128)">/* Print the numeric page list; make the current page unlinked and bold */</span>
<span style="color: rgb(177,177,0)">for</span> <span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$i</span>=<span style="color: rgb(204,102,204)">1</span>; <span style="color: rgb(0,0,255)">$i</span><=<span style="color: rgb(0,0,255)">$pages</span>; <span style="color: rgb(0,0,255)">$i</span>++<span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(177,177,0)">if</span> <span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$i</span> == <span style="color: rgb(0,0,255)">$curpage</span><span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$page_list</span> .= <span style="color: rgb(255,0,0)">"<b>"</span>.<span style="color: rgb(0,0,255)">$i</span>.<span style="color: rgb(255,0,0)">"</b>"</span>;
<span style="color: rgb(102,204,102)">}</span>
<span style="color: rgb(177,177,0)">else</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$page_list</span> .= <span style="color: rgb(255,0,0)">"<a href=<span style="color: rgb(0,0,153); font-weight: bold">\"</span>"</span>.<span style="color: rgb(0,0,255)">$_SERVER</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">'PHP_SELF'</span><span style="color: rgb(102,204,102)">]</span>.<span style="color: rgb(255,0,0)">"?page="</span>.<span style="color: rgb(0,0,255)">$i</span>.<span style="color: rgb(255,0,0)">"<span style="color: rgb(0,0,153); font-weight: bold">\"</span> title=<span style="color: rgb(0,0,153); font-weight: bold">\"</span>Page "</span>.<span style="color: rgb(0,0,255)">$i</span>.<span style="color: rgb(255,0,0)">"<span style="color: rgb(0,0,153); font-weight: bold">\"</span> class='aPager'>"</span>.<span style="color: rgb(0,0,255)">$i</span>.<span style="color: rgb(255,0,0)">"</a>"</span>;
<span style="color: rgb(102,204,102)">}</span>
<span style="color: rgb(0,0,255)">$page_list</span> .= <span style="color: rgb(255,0,0)">" "</span>;
<span style="color: rgb(102,204,102)">}</span>

<span style="font-style: italic; color: rgb(128,128,128)">/* Print the Next and Last page links if necessary */</span>
<span style="color: rgb(177,177,0)">if</span> <span style="color: rgb(102,204,102)">(</span><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$curpage</span><span style="color: rgb(204,102,204)">+1</span><span style="color: rgb(102,204,102)">)</span> <= <span style="color: rgb(0,0,255)">$pages</span><span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$page_list</span> .= <span style="color: rgb(255,0,0)">"<a href=<span style="color: rgb(0,0,153); font-weight: bold">\"</span>"</span>.<span style="color: rgb(0,0,255)">$_SERVER</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">'PHP_SELF'</span><span style="color: rgb(102,204,102)">]</span>.<span style="color: rgb(255,0,0)">"?page="</span>.<span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$curpage</span><span style="color: rgb(204,102,204)">+1</span><span style="color: rgb(102,204,102)">)</span>.<span style="color: rgb(255,0,0)">"<span style="color: rgb(0,0,153); font-weight: bold">\"</span> title=<span style="color: rgb(0,0,153); font-weight: bold">\"</span>Next Page<span style="color: rgb(0,0,153); font-weight: bold">\"</span> class='aPager'>></a> "</span>;
<span style="color: rgb(102,204,102)">}</span>

<span style="color: rgb(177,177,0)">if</span> <span style="color: rgb(102,204,102)">(</span><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$curpage</span> != <span style="color: rgb(0,0,255)">$pages</span><span style="color: rgb(102,204,102)">)</span> && <span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$pages</span> != <span style="color: rgb(204,102,204)">0</span><span style="color: rgb(102,204,102)">)</span><span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$page_list</span> .= <span style="color: rgb(255,0,0)">"<a href=<span style="color: rgb(0,0,153); font-weight: bold">\"</span>"</span>.<span style="color: rgb(0,0,255)">$_SERVER</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">'PHP_SELF'</span><span style="color: rgb(102,204,102)">]</span>.<span style="color: rgb(255,0,0)">"?page="</span>.<span style="color: rgb(0,0,255)">$pages</span>.<span style="color: rgb(255,0,0)">"<span style="color: rgb(0,0,153); font-weight: bold">\"</span> title=<span style="color: rgb(0,0,153); font-weight: bold">\"</span>Last Page<span style="color: rgb(0,0,153); font-weight: bold">\"</span> class='aPager'>&#187;</a> "</span>;
<span style="color: rgb(102,204,102)">}</span>
<span style="color: rgb(0,0,255)">$page_list</span> .= <span style="color: rgb(255,0,0)">"</td><span style="color: rgb(0,0,153); font-weight: bold">\n</span>"</span>;

<span style="color: rgb(177,177,0)">return</span> <span style="color: rgb(0,0,255)">$page_list</span>;
<span style="color: rgb(102,204,102)">}</span>
<span style="font-style: italic; color: rgb(128,128,128)">/***********************************************************************************
* string nextPrev (int curpage, int pages)
* Returns "Previous | Next" string for individual pagination (it's a word!)
***********************************************************************************/</span>
<span style="color: rgb(0,0,0); font-weight: bold">function</span> nextPrev<span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$curpage</span>, <span style="color: rgb(0,0,255)">$pages</span><span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$next_prev</span> = <span style="color: rgb(255,0,0)">""</span>;

<span style="color: rgb(177,177,0)">if</span> <span style="color: rgb(102,204,102)">(</span><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$curpage</span><span style="color: rgb(204,102,204)">-1</span><span style="color: rgb(102,204,102)">)</span> <= <span style="color: rgb(204,102,204)">0</span><span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$next_prev</span> .= <span style="color: rgb(255,0,0)">"Previous"</span>;
<span style="color: rgb(102,204,102)">}</span>
<span style="color: rgb(177,177,0)">else</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$next_prev</span> .= <span style="color: rgb(255,0,0)">"<a href=<span style="color: rgb(0,0,153); font-weight: bold">\"</span>"</span>.<span style="color: rgb(0,0,255)">$_SERVER</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">'PHP_SELF'</span><span style="color: rgb(102,204,102)">]</span>.<span style="color: rgb(255,0,0)">"?page="</span>.<span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$curpage</span><span style="color: rgb(204,102,204)">-1</span><span style="color: rgb(102,204,102)">)</span>.<span style="color: rgb(255,0,0)">"<span style="color: rgb(0,0,153); font-weight: bold">\"</span>>Previous</a>"</span>;
<span style="color: rgb(102,204,102)">}</span>

<span style="color: rgb(0,0,255)">$next_prev</span> .= <span style="color: rgb(255,0,0)">" | "</span>;

<span style="color: rgb(177,177,0)">if</span> <span style="color: rgb(102,204,102)">(</span><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$curpage</span><span style="color: rgb(204,102,204)">+1</span><span style="color: rgb(102,204,102)">)</span> > <span style="color: rgb(0,0,255)">$pages</span><span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$next_prev</span> .= <span style="color: rgb(255,0,0)">"Next"</span>;
<span style="color: rgb(102,204,102)">}</span>
<span style="color: rgb(177,177,0)">else</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$next_prev</span> .= <span style="color: rgb(255,0,0)">"<a href=<span style="color: rgb(0,0,153); font-weight: bold">\"</span>"</span>.<span style="color: rgb(0,0,255)">$_SERVER</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">'PHP_SELF'</span><span style="color: rgb(102,204,102)">]</span>.<span style="color: rgb(255,0,0)">"?page="</span>.<span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$curpage</span><span style="color: rgb(204,102,204)">+1</span><span style="color: rgb(102,204,102)">)</span>.<span style="color: rgb(255,0,0)">"<span style="color: rgb(0,0,153); font-weight: bold">\"</span>>Next</a>"</span>;
<span style="color: rgb(102,204,102)">}</span>

<span style="color: rgb(177,177,0)">return</span> <span style="color: rgb(0,0,255)">$next_prev</span>;
<span style="color: rgb(102,204,102)">}</span>
<span style="color: rgb(102,204,102)">}</span>
<span style="color: rgb(0,0,0); font-weight: bold">?></span>

</div>
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