极湖

/**
 * 将数组转换成 XML
 *
 * @param array $data             数组
 * @param array $encoding         编码（默认是 UTF-8)
 * @param string $rootNodeName    根节点名称（默认是 data)
 * @param SimpleXMLElement $xml   XML对象（递归用）
 * @return string XML
 */
function toXml($data, $encoding = 'UTF-8', $rootNodeName = 'data', $xml = null)
{
    if ($xml == null) {
        $xml = simplexml_load_string('<?xml version="1.0" encoding="'.$encoding.'"?><'.$rootNodeName.' />');
    }
    
    foreach($data as $key => $value) {
        if (is_numeric($key)) {
            $key = 'item_' . (string) $key;
        }
        
        $key = preg_replace('/\W+/i', '', $key);
        
        if (is_array($value)) {
            $node = $xml->addChild($key);
            toXml($value, $encoding, $rootNodeName, $node);
        } else {
            //$value = htmlentities($value);
            $xml->addChild($key, $value);
        }
    }
    return $xml->asXML();
}

$arr = array(
    'name' => '张三',
    'age' => 18,
    'sex' => '男'
);
header("Content-type: text/xml; charset=UTF-8");
echo toXml($arr);

<?xml version="1.0" encoding="UTF-8"?>
<data>
    <name>张三</name>
    <age>18</age>
    <sex>男</sex>
</data>

$ext = substr($filename, strrpos($filename, '.') + 1);

$ext = substr(strrchr($filename, '.'), 1);

$ext = pathinfo($filename, PATHINFO_EXTENSION);

$ext = strtolower(...);

; SESSION 设置
resources.session.save_path = APPLICATION_PATH "/../data/sessions"
resources.session.use_trans_sid = 1
resources.session.use_only_cookies = 0
resources.session.remember_me_seconds = 864000  ; 10 天
resources.session.gc_maxlifetime = 864000

-- SESSION 数据表
CREATE TABLE session (
    id char(32),
    modified int,
    lifetime int,
    data text,
    PRIMARY KEY (id)
);

; SESSION 设置
resources.session.saveHandler.class = "Zend_Session_SaveHandler_DbTable"
resources.session.saveHandler.options.name = "session"
resources.session.saveHandler.options.primary = "id"
resources.session.saveHandler.options.modifiedColumn = "modified"
resources.session.saveHandler.options.dataColumn = "data"
resources.session.saveHandler.options.lifetimeColumn = "lifetime"

resources.session.use_trans_sid = 1
resources.session.use_only_cookies = 0
resources.session.remember_me_seconds = 864000  ; 10 天
resources.session.gc_maxlifetime = 864000

<?php
/**
 * 方法一
 * 用 PHP 的 glob 函数和递归
 *
 * @return array 所有匹配文件的数组
 *
 * @param string $dir     - 目标路径
 * @param string $pattern - 匹配模式
 */
function find($dir, $pattern){
    $dir = escapeshellcmd($dir);
    $files = glob("$dir/$pattern");
    foreach (glob("$dir/{.[^.]*,*}", GLOB_BRACE|GLOB_ONLYDIR) as $sub_dir){
        $arr   = find($sub_dir, $pattern);
        $files = array_merge($files, $arr);
    }
    return $files;
}

/**
 * 方法二
 * 利用 Unix 的 find 命令
 *
 * @return array 所有匹配文件的数组
 *
 * @param string $dir     - 目标路径
 * @param string $pattern - 匹配模式
 */
function find2($dir, $pattern){
    $dir = escapeshellcmd($dir);
    $files = shell_exec("find $dir -name '$pattern' -print");
    $files = explode("\n", trim($files));
    return $files;
}

// 测试代码
$time1 = microtime();
$files = find('/home/ZF/', '*');
$time2 = microtime();
//print_r($files);
echo 'find1 count: '. count($files);
echo "\n";
echo 'find1 time: '. ($time2 - $time1);
echo "\n";

$time1 = microtime();
$files = find('/home/ZF/', '*');
$time2 = microtime();
//print_r($files);
echo 'find2 count: '. count($files);
echo "\n";
echo 'find2 time: '. ($time2 - $time1);
echo "\n";

function htmlToText( $html ){
 	$html = preg_replace( '/\r?\n/' , '' , $html );
 	$html = preg_replace('/<(\/?)(br|hr|div|p|object|marquee|table|tr|ul|ol|li|dd|dl|h[1-9])(\b)/i', $this->LFC.'<${1}${2}${3}', $html);
 	$html = preg_replace('/<\/(td|th)(\b)/i', ' </${1}${2}', $html);
 	return trim(strip_tags($html));
}

function htmlToText(sHtml) {
 	sHtml = sHtml.replace(/\r?\n/g, '').replace(/<\/?(br|div|p|object|marquee|table|tr|ul|ol|li|dd|dl|h[1-9])\b/gi, function($0, tag){
 		return '\n' + $0;
 	}).replace(/<\/(td|th)\b/gi, function($0, tag){
 		return  ' ' + $0;
 	});
 	var element = document.createElement('div');  
 	element.innerHTML = sHtml;  
 	return element.textContent || element.innerText;
}