关键词高亮
<ol class="dp-c"><li class="alt"><span><span class="keyword">function</span><span> highlight(</span><span class="vars">$sString</span><span>, </span><span class="vars">$aWords</span><span>) { </span></span></li><li><span> <span class="keyword">if</span><span> (!</span><span class="func">is_array</span><span> (</span><span class="vars">$aWords</span><span>) </span><span class="keyword">empty</span><span class="func">empty</span><span> (</span><span class="vars">$aWords</span><span>) !</span><span class="func">is_string</span><span> (</span><span class="vars">$sString</span><span>)) { </span></span></li><li class="alt"><span> <span class="keyword">return</span><span> false; </span></span></li><li><span> } </span></li><li class="alt"><span> </span></li><li><span> <span class="vars">$sWords</span><span> = implode (</span><span class="string">''</span><span>, </span><span class="vars">$aWords</span><span>); </span></span></li><li class="alt"><span> <span class="keyword">return</span><span> preg_replace (</span><span class="string">'@\b('</span><span>.</span><span class="vars">$sWords</span><span>.</span><span class="string">')\b@si'</span><span>, </span><span class="string">'<strong style="background-color:yellow">$1</strong>'</span><span>, </span><span class="vars">$sString</span><span>); </span></span></li><li><span>} </span></li></ol>
获取你的Feedburner的用户
<ol class="dp-c"><li class="alt"><span><span class="keyword">function</span><span> get_average_readers(</span><span class="vars">$feed_id</span><span>,</span><span class="vars">$interval</span><span> = 7){ </span></span></li><li><span> <span class="vars">$today</span><span> = </span><span class="func">date</span><span>(</span><span class="string">'Y-m-d'</span><span>, </span><span class="func">strtotime</span><span>(</span><span class="string">"now"</span><span>)); </span></span></li><li class="alt"><span> <span class="vars">$ago</span><span> = </span><span class="func">date</span><span>(</span><span class="string">'Y-m-d'</span><span>, </span><span class="func">strtotime</span><span>(</span><span class="string">"-"</span><span>.</span><span class="vars">$interval</span><span>.</span><span class="string">" days"</span><span>)); </span></span></li><li><span> <span class="vars">$feed_url</span><span>=</span><span class="string">"https://feedburner.google.com/api/awareness/1.0/GetFeedData?uri="</span><span>.</span><span class="vars">$feed_id</span><span>.</span><span class="string">"&dates="</span><span>.</span><span class="vars">$ago</span><span>.</span><span class="string">","</span><span>.</span><span class="vars">$today</span><span>; </span></span></li><li class="alt"><span> <span class="vars">$ch</span><span> = curl_init(); </span></span></li><li><span> curl_setopt(<span class="vars">$ch</span><span>, CURLOPT_RETURNTRANSFER, 1); </span></span></li><li class="alt"><span> curl_setopt(<span class="vars">$ch</span><span>, CURLOPT_URL, </span><span class="vars">$feed_url</span><span>); </span></span></li><li><span> <span class="vars">$data</span><span> = curl_exec(</span><span class="vars">$ch</span><span>); </span></span></li><li class="alt"><span> curl_close(<span class="vars">$ch</span><span>); </span></span></li><li><span> <span class="vars">$xml</span><span> = </span><span class="keyword">new</span><span> SimpleXMLElement(</span><span class="vars">$data</span><span>); </span></span></li><li class="alt"><span> <span class="vars">$fb</span><span> = </span><span class="vars">$xml</span><span>->feed->entry[</span><span class="string">'circulation'</span><span>]; </span></span></li><li><span> </span></li><li class="alt"><span> <span class="vars">$nb</span><span> = 0; </span></span></li><li><span> <span class="keyword">foreach</span><span>(</span><span class="vars">$xml</span><span>->feed->children() </span><span class="keyword">as</span><span> </span><span class="vars">$circ</span><span>){ </span></span></li><li class="alt"><span> <span class="vars">$nb</span><span> += </span><span class="vars">$circ</span><span>[</span><span class="string">'circulation'</span><span>]; </span></span></li><li><span> } </span></li><li class="alt"><span> </span></li><li><span> <span class="keyword">return</span><span> </span><span class="func">round</span><span>(</span><span class="vars">$nb</span><span>/</span><span class="vars">$interval</span><span>); </span></span></li><li class="alt"><span>} </span></li></ol>
自动生成密码
<ol class="dp-c"><li class="alt"><span><span class="keyword">function</span><span> generatePassword(</span><span class="vars">$length</span><span>=9, </span><span class="vars">$strength</span><span>=0) { </span></span></li><li><span> <span class="vars">$vowels</span><span> = </span><span class="string">'aeuy'</span><span>; </span></span></li><li class="alt"><span> <span class="vars">$consonants</span><span> = </span><span class="string">'bdghjmnpqrstvz'</span><span>; </span></span></li><li><span> <span class="keyword">if</span><span> (</span><span class="vars">$strength</span><span> >= 1) { </span></span></li><li class="alt"><span> <span class="vars">$consonants</span><span> .= </span><span class="string">'BDGHJLMNPQRSTVWXZ'</span><span>; </span></span></li><li><span> } </span></li><li class="alt"><span> <span class="keyword">if</span><span> (</span><span class="vars">$strength</span><span> >= 2) { </span></span></li><li><span> <span class="vars">$vowels</span><span> .= </span><span class="string">"AEUY"</span><span>; </span></span></li><li class="alt"><span> } </span></li><li><span> <span class="keyword">if</span><span> (</span><span class="vars">$strength</span><span> >= 4) { </span></span></li><li class="alt"><span> <span class="vars">$consonants</span><span> .= </span><span class="string">'23456789'</span><span>; </span></span></li><li><span> } </span></li><li class="alt"><span> <span class="keyword">if</span><span> (</span><span class="vars">$strength</span><span> >= 8 ) { </span></span></li><li><span> <span class="vars">$vowels</span><span> .= </span><span class="string">'@#$%'</span><span>; </span></span></li><li class="alt"><span> } </span></li><li><span> </span></li><li class="alt"><span> <span class="vars">$password</span><span> = </span><span class="string">''</span><span>; </span></span></li><li><span> <span class="vars">$alt</span><span> = time() % 2; </span></span></li><li class="alt"><span> <span class="keyword">for</span><span> (</span><span class="vars">$i</span><span> = 0; </span><span class="vars">$i</span><span> < </span><span class="vars">$length</span><span>; </span><span class="vars">$i</span><span>++) { </span></span></li><li><span> <span class="keyword">if</span><span> (</span><span class="vars">$alt</span><span> == 1) { </span></span></li><li class="alt"><span> <span class="vars">$password</span><span> .= </span><span class="vars">$consonants</span><span>[(rand() % </span><span class="func">strlen</span><span>(</span><span class="vars">$consonants</span><span>))]; </span></span></li><li><span> <span class="vars">$alt</span><span> = 0; </span></span></li><li class="alt"><span> } <span class="keyword">else</span><span> { </span></span></li><li><span> <span class="vars">$password</span><span> .= </span><span class="vars">$vowels</span><span>[(rand() % </span><span class="func">strlen</span><span>(</span><span class="vars">$vowels</span><span>))]; </span></span></li><li class="alt"><span> <span class="vars">$alt</span><span> = 1; </span></span></li><li><span> } </span></li><li class="alt"><span> } </span></li><li><span> <span class="keyword">return</span><span> </span><span class="vars">$password</span><span>; </span></span></li><li class="alt"><span>} </span></li></ol>
压缩多个CSS文件
<ol class="dp-c"><li class="alt"><span><span>header(</span><span class="string">'Content-type: text/css'</span><span>); </span></span></li><li><span>ob_start(<span class="string">"compress"</span><span>); </span></span></li><li class="alt"><span><span class="keyword">function</span><span> compress(</span><span class="vars">$buffer</span><span>) { </span></span></li><li><span> <span class="comment">/* remove comments */</span><span> </span></span></li><li class="alt"><span> <span class="vars">$buffer</span><span> = preg_replace(</span><span class="string">'!/\*[^*]*\*+([^/][^*]*\*+)*/!'</span><span>, </span><span class="string">''</span><span>, </span><span class="vars">$buffer</span><span>); </span></span></li><li><span> <span class="comment">/* remove tabs, spaces, newlines, etc. */</span><span> </span></span></li><li class="alt"><span> <span class="vars">$buffer</span><span> = </span><span class="func">str_replace</span><span>(</span><span class="keyword">array</span><span>(</span><span class="string">"\r\n"</span><span>, </span><span class="string">"\r"</span><span>, </span><span class="string">"\n"</span><span>, </span><span class="string">"\t"</span><span>, </span><span class="string">' '</span><span>, </span><span class="string">' '</span><span>, </span><span class="string">' '</span><span>), </span><span class="string">''</span><span>, </span><span class="vars">$buffer</span><span>); </span></span></li><li><span> <span class="keyword">return</span><span> </span><span class="vars">$buffer</span><span>; </span></span></li><li class="alt"><span>} </span></li><li><span> </span></li><li class="alt"><span><span class="comment">/* your css files */</span><span> </span></span></li><li><span><span class="keyword">include</span><span>(</span><span class="string">'master.css'</span><span>); </span></span></li><li class="alt"><span><span class="keyword">include</span><span>(</span><span class="string">'typography.css'</span><span>); </span></span></li><li><span><span class="keyword">include</span><span>(</span><span class="string">'grid.css'</span><span>); </span></span></li><li class="alt"><span><span class="keyword">include</span><span>(</span><span class="string">'print.css'</span><span>); </span></span></li><li><span><span class="keyword">include</span><span>(</span><span class="string">'handheld.css'</span><span>); </span></span></li><li class="alt"><span> </span></li><li><span>ob_end_flush(); </span></li></ol>
获取短网址
立即学习“PHP免费学习笔记（深入）”；
<ol class="dp-c"><li class="alt"><span><span class="keyword">function</span><span> getTinyUrl(</span><span class="vars">$url</span><span>) { </span></span></li><li><span> <span class="keyword">return</span><span> </span><span class="func">file_get_contents</span><span>(</span><span class="string">"http://tinyurl.com/api-create.php?url="</span><span>.</span><span class="vars">$url</span><span>); </span></span></li><li class="alt"><span>} </span></li></ol>
根据生日计算年龄
Avactis购物车
下载
Avactis是一个强大的PHP在线购物系统拥有多个版本包括开源版本。它具备一个在线购物系统所需要的所有功能从产品到会员管理，订单和营销。可以无限分类和为产品指定任务数量的图片（支持自动生成缩略图）。使用自定义字段功能，让你可以更好地定义一个产品。该系统提供以非常灵活的方式来创建任意类型的促销活动如设置折扣代码，基于价格的折扣或基于数量的折扣等。
<ol class="dp-c"><li class="alt"><span><span class="keyword">function</span><span> age(</span><span class="vars">$date</span><span>){ </span></span></li><li><span> <span class="vars">$year_diff</span><span> = </span><span class="string">''</span><span>; </span></span></li><li class="alt"><span> <span class="vars">$time</span><span> = </span><span class="func">strtotime</span><span>(</span><span class="vars">$date</span><span>); </span></span></li><li><span> <span class="keyword">if</span><span>(FALSE === </span><span class="vars">$time</span><span>){ </span></span></li><li class="alt"><span> <span class="keyword">return</span><span> </span><span class="string">''</span><span>; </span></span></li><li><span> } </span></li><li class="alt"><span> </span></li><li><span> <span class="vars">$date</span><span> = </span><span class="func">date</span><span>(</span><span class="string">'Y-m-d'</span><span>, </span><span class="vars">$time</span><span>); </span></span></li><li class="alt"><span> list(<span class="vars">$year</span><span>,</span><span class="vars">$month</span><span>,</span><span class="vars">$day</span><span>) = </span><span class="func">explode</span><span>(</span><span class="string">"-"</span><span>,</span><span class="vars">$date</span><span>); </span></span></li><li><span> <span class="vars">$year_diff</span><span> = </span><span class="func">date</span><span>(</span><span class="string">"Y"</span><span>) – </span><span class="vars">$year</span><span>; </span></span></li><li class="alt"><span> <span class="vars">$month_diff</span><span> = </span><span class="func">date</span><span>(</span><span class="string">"m"</span><span>) – </span><span class="vars">$month</span><span>; </span></span></li><li><span> <span class="vars">$day_diff</span><span> = </span><span class="func">date</span><span>(</span><span class="string">"d"</span><span>) – </span><span class="vars">$day</span><span>; </span></span></li><li class="alt"><span> <span class="keyword">if</span><span> (</span><span class="vars">$day_diff</span><span> < 0 </span><span class="vars">$month_diff</span><span> < 0) </span><span class="vars">$year_diff</span><span>–; </span></span></li><li><span> </span></li><li class="alt"><span> <span class="keyword">return</span><span> </span><span class="vars">$year_diff</span><span>; </span></span></li><li><span>} </span></li></ol>
计算执行时间
<ol class="dp-c"><li class="alt"><span><span class="comment">//Create a variable for start time</span><span> </span></span></li><li><span><span class="vars">$time_start</span><span> = microtime(true); </span></span></li><li class="alt"><span> </span></li><li><span><span class="comment">// Place your PHP/HTML/JavaScript/CSS/Etc. Here</span><span> </span></span></li><li class="alt"><span> </span></li><li><span><span class="comment">//Create a variable for end time</span><span> </span></span></li><li class="alt"><span><span class="vars">$time_end</span><span> = microtime(true); </span></span></li><li><span><span class="comment">//Subtract the two times to get seconds</span><span> </span></span></li><li class="alt"><span><span class="vars">$time</span><span> = </span><span class="vars">$time_end</span><span> - </span><span class="vars">$time_start</span><span>; </span></span></li><li><span> </span></li><li class="alt"><span><span class="func">echo</span><span> </span><span class="string">'Script took '</span><span>.</span><span class="vars">$time</span><span>.</span><span class="string">' seconds to execute'</span><span>; </span></span></li></ol>
PHP的维护模式
<ol class="dp-c"><li class="alt"><span><span class="keyword">function</span><span> maintenance(</span><span class="vars">$mode</span><span> = FALSE){ </span></span></li><li><span> <span class="keyword">if</span><span>(</span><span class="vars">$mode</span><span>){ </span></span></li><li class="alt"><span> <span class="keyword">if</span><span>(</span><span class="func">basename</span><span>(</span><span class="vars">$_SERVER</span><span>[</span><span class="string">'SCRIPT_FILENAME'</span><span>]) != </span><span class="string">'maintenance.php'</span><span>){ </span></span></li><li><span> header(<span class="string">"Location: http://example.com/maintenance.php"</span><span>); </span></span></li><li class="alt"><span> <span class="func">exit</span><span>; </span></span></li><li><span> } </span></li><li class="alt"><span> }<span class="keyword">else</span><span>{ </span></span></li><li><span> <span class="keyword">if</span><span>(</span><span class="func">basename</span><span>(</span><span class="vars">$_SERVER</span><span>[</span><span class="string">'SCRIPT_FILENAME'</span><span>]) == </span><span class="string">'maintenance.php'</span><span>){ </span></span></li><li class="alt"><span> header(<span class="string">"Location: http://example.com/"</span><span>); </span></span></li><li><span> <span class="func">exit</span><span>; </span></span></li><li class="alt"><span> } </span></li><li><span> } </span></li><li class="alt"><span>} </span></li></ol>
阻止CSS样式被缓存
<ol class="dp-c"><li class="alt"><span><span><link href=</span><span class="string">"/stylesheet.css?<?php echo time(); ?>"</span><span> rel=</span><span class="string">"stylesheet"</span><span> type=</span><span class="string">"text/css"</span><span> /&glt; </span></span></li></ol>
为数字增加 st\nd\rd 等
<ol class="dp-c"><li class="alt"><span><span class="keyword">function</span><span> make_ranked(</span><span class="vars">$rank</span><span>) { </span></span></li><li><span> <span class="vars">$last</span><span> = </span><span class="func">substr</span><span>( </span><span class="vars">$rank</span><span>, -1 ); </span></span></li><li class="alt"><span> <span class="vars">$seclast</span><span> = </span><span class="func">substr</span><span>( </span><span class="vars">$rank</span><span>, -2, -1 ); </span></span></li><li><span> <span class="keyword">if</span><span>( </span><span class="vars">$last</span><span> > 3 </span><span class="vars">$last</span><span> == 0 ) </span><span class="vars">$ext</span><span> = </span><span class="string">'th'</span><span>; </span></span></li><li class="alt"><span> <span class="keyword">else</span><span> </span><span class="keyword">if</span><span>( </span><span class="vars">$last</span><span> == 3 ) </span><span class="vars">$ext</span><span> = </span><span class="string">'rd'</span><span>; </span></span></li><li><span> <span class="keyword">else</span><span> </span><span class="keyword">if</span><span>( </span><span class="vars">$last</span><span> == 2 ) </span><span class="vars">$ext</span><span> = </span><span class="string">'nd'</span><span>; </span></span></li><li class="alt"><span> <span class="keyword">else</span><span> </span><span class="vars">$ext</span><span> = </span><span class="string">'st'</span><span>; </span></span></li><li><span> </span></li><li class="alt"><span> <span class="keyword">if</span><span>( </span><span class="vars">$last</span><span> == 1 && </span><span class="vars">$seclast</span><span> == 1) </span><span class="vars">$ext</span><span> = </span><span class="string">'th'</span><span>; </span></span></li><li><span> <span class="keyword">if</span><span>( </span><span class="vars">$last</span><span> == 2 && </span><span class="vars">$seclast</span><span> == 1) </span><span class="vars">$ext</span><span> = </span><span class="string">'th'</span><span>; </span></span></li><li class="alt"><span> <span class="keyword">if</span><span>( </span><span class="vars">$last</span><span> == 3 && </span><span class="vars">$seclast</span><span> == 1) </span><span class="vars">$ext</span><span> = </span><span class="string">'th'</span><span>; </span></span></li><li><span> </span></li><li class="alt"><span> <span class="keyword">return</span><span> </span><span class="vars">$rank</span><span>.</span><span class="vars">$ext</span><span>; </span></span></li><li><span>} </span></li></ol>
