PHP_常见问题（1）

1）扫描一个文件夹下的所有文件夹和文件：

<?php
function scan($path){
    static $arr=array();    //静态数组，用于存储扫描到的和文件夹
    $filearr=scandir($path);
    foreach ($filearr as $value){
        if($value==‘.‘ || $value==‘..‘){
            continue;
        }
        if(is_file($path.‘/‘.$value)){
            $arr[]=‘<font color=green>‘.$path.‘/‘.$value.‘</font>‘;
        }
        else {
            $arr[]=‘<font color=red>‘.$path.‘/‘.$value.‘</font>‘;
            scan($path.‘/‘.$value);
        }
        //            if(is_dir($path.‘/‘.$value)){
        //                scan($path.‘/‘.$value);
        //            }
    }
    return $arr;
}
$row=scan(‘../../‘);
$count=count($row);
echo ‘共查到‘.$count.‘个文件！<br/>‘;
foreach ($row as $value)
echo $value.‘<br/>‘;

2）删除非空文件夹：

<?php
function del($path) {
    $res = @opendir ( $path );
    if (! $res) {
        echo ‘文件或文件夹不存在，删除失败！‘;
        exit ();
    }
    while ( $file = readdir ( $res ) ) {
        if ($file != "." && $file != "..") {
            $fullpath = $path . "/" . $file;
            if (! is_dir ( $fullpath )) {
                unlink ( $fullpath );
            } else {
                del ( $fullpath );
            }
        }
    }
    closedir ( $res );
    if (rmdir ( $path )) {
        return true;
    } else {
        return false;
    }
}

$path = "./a/";
if (del ( $path )) {
    echo "删除成功！";
} else {
    echo "删除失败！";
}

?>

3）Curl发送post请求：

<?php

$data=array("appType"=>1,"IsJSON"=>1,"phone"=>18300000000);
$url = "http://app.ron20.com:809/smspost.php?";
$res=doCurlPostRequest($url, $data, 10);
var_dump($res);

function doCurlPostRequest($url, $requestString, $timeout = 5)
    {
    if ($url == "" || $requestString == "" || $timeout <= 0) {
        return false;
    }
    $con = curl_init((string)$url);
    curl_setopt($con, CURLOPT_HEADER, false);
    curl_setopt($con, CURLOPT_POSTFIELDS, $requestString);
    curl_setopt($con, CURLOPT_POST, true);
    curl_setopt($con, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($con, CURLOPT_TIMEOUT, (int)$timeout);
    curl_exec($con);
    }

4）php调用WEBSERVICE服务：

<?php

class webSrvClass
{
    //webservice 地址参数,调用webservice
    function soap($function, $par = array())
    {
        //链接 web service  需要注意下面的url地址是.net提供的,后面加个?wsdl才是描述定义文件哈,请各自取正确的wsdl地址(每种web服务都有的)
        $client = new SoapClient("http://www.sz56it11.net:8088/Transjp.svc?wsdl", array(‘exceptions‘ => 0));
        $require = $client->$function($par);
        //调用信息debug
        if (is_soap_fault($require)) {
            echo "远程接口" . $function . "调用失败！";
            exit();
        }
        //获取返回值
        $function_result = $function . "Result";
        $str = $require->$function_result;
        return $str;
    }

     //接口通讯记录
    /*function soap_log($class, $function, $in, $out)
    {
        $log = date("Y-m-d H:i:s");
        $log .= " " . $class . "->" . $function . " input:";
        $input = "";
        if ($in != array()) {
            foreach ($in as $key => $vlaue) {
                $input .= $key . "=" . $vlaue;
            }
            $log .= $input . " output:" . var_export($rows) . "\n";
        }
    }*/
}

//调用方法
$webserv = new webSrvClass;
//这里是调用方法给传递的参数
$a = array("trackid" => "121211", "username" => "jpwl1", "password" => "jpwl888111");
echo ‘server echo:‘ . ($webserv->soap("querystatus", $a));

?>

5）php获取页面完整url：

<?php
    function get_page_url(){
        $url=(isset($_SERVER[‘SERVER_PORT‘])&&$_SERVER[‘SERVER_PORT‘]==‘443‘)? ‘https://‘:‘http://‘;
        $url.=$_SERVER[‘HTTP_HOST‘];
        $url.=isset($_SERVER[‘REQUEST_URL‘])?$_SERVER[‘REQUEST_URL‘]:$_SERVER[‘PHP_SELF‘].‘?‘.$_SERVER[‘QUERY_STRING‘];
        return $url;
    }
?>

6）php无限极分类：

//无限极函数
private function treelist($data, $cid, $deep = 1) {
        static $tree = array ();
        foreach ( $data as $row ) {
            if ($row [‘cid‘] == $cid) {
                $row [‘lever‘] = $deep;
                $tree [] = $row;
                $this->treelist ( $data, $row [‘id‘], $deep + 1 );
            }
        }
        return $tree;
    }
//取得数据
public function getList() {
        // 获取所有分类数据
        $data = $this->fetchAll ();
        //list就是所有排序之后的数据
        $list = $this->treeList ( $data, 0 );
        return $list;
    }

//在页面中展示
<div class="subnav">
     {foreach from=$cdata item=‘value‘}
    {if $value[‘lever‘]==1}
       <div>
        <span class="left"> {$value[‘name‘]} </span>
        <span class="right subnav_right">
        <img src="Public/Home/view/images/line.gif" border="0"
            id="categorie_ico3"></span>
       </div>
    {/if}

    <ul id="m3" style="display: block">
        {if $value[‘lever‘]==2}
              <li>&nbsp;<a href="#"> {$value[‘name‘]} </a></li>
        {/if}
    </ul>
     {/foreach}
</div>