10段可能用到的代码
关键词高亮

function highlight($sString, $aWords) {if (!is_array ($aWords) || empty ($aWords) || !is_string ($sString)) {return false;}$sWords = implode ('|', $aWords); return preg_replace ('@\b('.$sWords.')\b@si', '<strong style="background-color:yellow">$1</strong>', $sString);}

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获取你的Feedburner的用户

function get_average_readers($feed_id,$interval = 7){$today = date('Y-m-d', strtotime("now"));$ago = date('Y-m-d', strtotime("-".$interval." days"));$feed_url="https://feedburner.google.com/api/awareness/1.0/GetFeedData?uri=".$feed_id."&dates=".$ago.",".$today;$ch = curl_init();curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);curl_setopt($ch, CURLOPT_URL, $feed_url);$data = curl_exec($ch);curl_close($ch);$xml = new SimpleXMLElement($data);$fb = $xml->feed->entry['circulation'];$nb = 0;foreach($xml->feed->children() as $circ){$nb += $circ['circulation'];}return round($nb/$interval);}

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自动生成密码

function generatePassword($length=9, $strength=0) {$vowels = 'aeuy';$consonants = 'bdghjmnpqrstvz';if ($strength >= 1) {$consonants .= 'BDGHJLMNPQRSTVWXZ';}if ($strength >= 2) {$vowels .= "AEUY";}if ($strength >= 4) {$consonants .= '23456789';}if ($strength >= 8 ) {$vowels .= '@#$%';}$password = '';$alt = time() % 2;for ($i = 0; $i < $length; $i++) {if ($alt == 1) {$password .= $consonants[(rand() % strlen($consonants))];$alt = 0;} else {$password .= $vowels[(rand() % strlen($vowels))];$alt = 1;}}return $password;}

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压缩多个CSS文件

header('Content-type: text/css');ob_start("compress");function compress($buffer) {  /* remove comments */  $buffer = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $buffer);  /* remove tabs, spaces, newlines, etc. */  $buffer = str_replace(array("\r\n", "\r", "\n", "\t", '  ', '    ', '    '), '', $buffer);  return $buffer;}/* your css files */include('master.css');include('typography.css');include('grid.css');include('print.css');include('handheld.css');ob_end_flush();

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获取短网址

function getTinyUrl($url) {    return file_get_contents("http://tinyurl.com/api-create.php?url=".$url);}

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根据生日计算年龄

function age($date){$year_diff = '';$time = strtotime($date);if(FALSE === $time){return '';}$date = date('Y-m-d', $time);list($year,$month,$day) = explode("-",$date);$year_diff = date("Y")  $year;$month_diff = date("m")  $month;$day_diff = date("d")  $day;if ($day_diff < 0 || $month_diff < 0) $year_diff;return $year_diff;}

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计算执行时间

//Create a variable for start time$time_start = microtime(true);// Place your PHP/HTML/JavaScript/CSS/Etc. Here//Create a variable for end time$time_end = microtime(true);//Subtract the two times to get seconds$time = $time_end - $time_start;echo 'Script took '.$time.' seconds to execute';

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PHP的维护模式

function maintenance($mode = FALSE){    if($mode){        if(basename($_SERVER['SCRIPT_FILENAME']) != 'maintenance.php'){            header("Location: http://example.com/maintenance.php");            exit;        }    }else{        if(basename($_SERVER['SCRIPT_FILENAME']) == 'maintenance.php'){            header("Location: http://example.com/");            exit;        }    }}

?阻止CSS样式被缓存

<link href="/stylesheet.css?<?php echo time(); ?>" rel="stylesheet" type="text/css" /&glt;

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为数字增加 st\nd\rd 等

function make_ranked($rank) {$last = substr( $rank, -1 );$seclast = substr( $rank, -2, -1 );if( $last > 3 || $last == 0 ) $ext = 'th';else if( $last == 3 ) $ext = 'rd';else if( $last == 2 ) $ext = 'nd';else $ext = 'st'; if( $last == 1 && $seclast == 1) $ext = 'th';if( $last == 2 && $seclast == 1) $ext = 'th';if( $last == 3 && $seclast == 1) $ext = 'th'; return $rank.$ext;}

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