10 个救命的 PHP 代码片段
关键词高亮
function highlight($sString, $aWords) { [*] if (!is_array ($aWords) || emptyempty ($aWords) || !is_string ($sString)) {
return false; [*] }
[*] $sWords = implode ('|', $aWords);
return preg_replace ('@\b('.$sWords.')\b@si', '<strong style="background-color:yellow">$1</strong>', $sString); [*]}
获取你的Feedburner的用户
function get_average_readers($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/$interval);
[*]}
自动生成密码
function generatePassword($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 $password;
[*]}
压缩多个CSS文件
header('Content-type: text/css'); [*]ob_start("compress");
function compress($buffer) { [*]/* remove comments */
$buffer = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $buffer); [*]/* remove tabs, spaces, newlines, etc. */
$buffer = str_replace(array("\r\n", "\r", "\n", "\t", '', ' ', ' '), '', $buffer); [*]return $buffer;
} [*]
/* your css files */ [*]include('master.css');
include('typography.css'); [*]include('grid.css');
include('print.css'); [*]include('handheld.css');
[*]ob_end_flush();
获取短网址
function getTinyUrl($url) { [*] return file_get_contents("http://tinyurl.com/api-create.php?url=".$url);
[*]}
根据生日计算年龄
function age($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 $year_diff; [*]}
计算执行时间
//Create a variable for start time [*]$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';
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;
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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