10个实用的PHP代码片段

yipeiwu_com5年前PHP代码库
关键词高亮
复制代码 代码如下:

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);
}

获取你的Feedburner的用户
复制代码 代码如下:

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
复制代码 代码如下:

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
复制代码 代码如下:

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
复制代码 代码如下:

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

根据生日计算年龄
复制代码 代码如下:

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
复制代码 代码如下:

//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
复制代码 代码如下:

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
复制代码 代码如下:

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

为数字增加 st\nd\rd 等
复制代码 代码如下:

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;
}

相关文章

php类常量用法实例分析

本文实例讲述了php类常量用法。分享给大家供大家参考。具体如下: <?php /** * PHP类常量 * * 类常量属于类自身,不属于对象实例,不能通过对象实例...

PHPCMS遭遇会员投稿审核无效的解决方法 原创

今天接到主编那边的反馈,说本站的会员投稿平台,后台无法审核文章了,赶紧看看吧 本来想偷个懒,去度娘那里搜搜,看有相同情况的解决方案没,结果大失所望,虽然也有几个类似的情况,要么没解决,要...

php mssql 时间格式问题

当然是在程序里解决比较灵活,例如: “select convert(char,日期字段,120) as date2 from table” convert(char,date,N)输出的...

php下通过curl抓取yahoo boss 搜索结果的实现代码

1.编写curl类,进行网页内容抓取 复制代码 代码如下: class CurlUtil { private $curl; private $timeout = 10; /** * 初始...

解析WordPress中的post_class与get_post_class函数

post_class() post_class 是 WordPress 内置的一个用于显示文章 class 名称的函数,该函数通常会为每一篇文章生成独一无二的 clss 值,如果你需要制...