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  • 超实用的56个PHP开发常用代码片段(下) | 扣钉·干货
    时间:2017-10-24 21:26:39来源:模板之家 作者:转载大师 下载:1908 次

    点击上方蓝字,关注「扣钉」

    "扣钉Coding,用程序猿的眼光看生活"





    天,我们分享了《 超实用的56个PHP开发常用代码片段(上) 》,涉及到信息、邮件、时间、压缩解压、URL等各个方向的代码片段,还没有看过的小伙伴可以点击查看题目查看,建议大家收藏备用。

    今天,我们继续分享下半部分代码片段。



         // 30.计算两个日期的差 //     

    <?php
    $date1 = date( Y-m-d );
    $date2 = "2015-12-04";
    $diff = abs(strtotime($date2) - strtotime($date1));
    $years = floor($diff / (365*60*60*24));
    $months = floor(($diff - $years * 365*60*60*24) / (30*60*60*24));
    $days = floor(($diff - $years * 365*60*60*24 - $months*30*60*60*24)/ (60*60*24));
    printf("%d years, %d months, %d days ", $years, $months, $days);
    -------------------------------------------------------- OR
    $date1 = new DateTime("2007-03-24");
    $date2 = new DateTime("2009-06-26");
    $interval = $date1->diff($date2);
    echo "difference " . $interval->y . " years, " . $interval->m." months, ".$interval->d." days "; 
    // shows the total amount of days (not ided into years, months and days like above)
    echo "difference " . $interval->days . " days ";
    -------------------------------------------------------- OR   
             
    /**
     * Calculate differences between two dates with precise semantics. Based on PHPs DateTime::diff()
     * implementation by Derick Rethans. Ported to PHP by Emil H, 2011-05-02. No rights reserved.
     * 
     * See here for original code:
     * http://svn.php.net/viewvc/php/php-src/trunk/ext/date/lib/tm2unixtime.c?revision=302890&view=markup
     * http://svn.php.net/viewvc/php/php-src/trunk/ext/date/lib/interval.c?revision=298973&view=markup
     */
    function _date_range_limit($start, $end, $adj, $a, $b, $result)
    {
        if ($result[$a] < $start) {
            $result[$b] -= intval(($start - $result[$a] - 1) / $adj) + 1;
            $result[$a] += $adj * intval(($start - $result[$a] - 1) / $adj + 1);
        }
        if ($result[$a] >= $end) {
            $result[$b] += intval($result[$a] / $adj);
            $result[$a] -= $adj * intval($result[$a] / $adj);
        }
        return $result;
    }
    function _date_range_limit_days($base, $result)
    {
        $days_in_month_leap = array(31, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
        $days_in_month = array(31, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
        _date_range_limit(1, 13, 12, "m", "y", &$base);
        $year = $base["y"];
        $month = $base["m"];
        if (!$result["invert"]) {
            while ($result["d"] < 0) {
                $month--;
                if ($month < 1) {
                    $month += 12;
                    $year--;
                }
                $leapyear = $year % 400 == 0 || ($year % 100 != 0 && $year % 4 == 0);
                $days = $leapyear ? $days_in_month_leap[$month] : $days_in_month[$month];
                $result["d"] += $days;
                $result["m"]--;
            }
        } else {
            while ($result["d"] < 0) {
                $leapyear = $year % 400 == 0 || ($year % 100 != 0 && $year % 4 == 0);
                $days = $leapyear ? $days_in_month_leap[$month] : $days_in_month[$month];
                $result["d"] += $days;
                $result["m"]--;
                $month++;
                if ($month > 12) {
                    $month -= 12;
                    $year++;
                }
            }
        }
        return $result;
    }
    function _date_normalize($base, $result)
    {
        $result = _date_range_limit(0, 60, 60, "s", "i", $result);
        $result = _date_range_limit(0, 60, 60, "i", "h", $result);
        $result = _date_range_limit(0, 24, 24, "h", "d", $result);
        $result = _date_range_limit(0, 12, 12, "m", "y", $result);
        $result = _date_range_limit_days(&$base, &$result);
        $result = _date_range_limit(0, 12, 12, "m", "y", $result);
        return $result;
    }
    /**
     * Accepts two unix timestamps.
     */
    function _date_diff($one, $two)
    {
        $invert = false;
        if ($one > $two) {
            list($one, $two) = array($two, $one);
            $invert = true;
        }
        $key = array("y", "m", "d", "h", "i", "s");
        $a = array_combine($key, array_map("intval", explode(" ", date("Y m d H i s", $one))));
        $b = array_combine($key, array_map("intval", explode(" ", date("Y m d H i s", $two))));
        $result = array();
        $result["y"] = $b["y"] - $a["y"];
        $result["m"] = $b["m"] - $a["m"];
        $result["d"] = $b["d"] - $a["d"];
        $result["h"] = $b["h"] - $a["h"];
        $result["i"] = $b["i"] - $a["i"];
        $result["s"] = $b["s"] - $a["s"];
        $result["invert"] = $invert ? 1 : 0;
        $result["days"] = intval(abs(($one - $two)/86400));
        if ($invert) {
            _date_normalize(&$a, &$result);
        } else {
            _date_normalize(&$b, &$result);
        }
        return $result;
    }
    $date = "2014-12-04 19:37:22";
    echo <pre>;
    print_r( _date_diff( strtotime($date), time() ) );
    echo </pre>; 
    ?>



         // 31.删除文件夹内容 //     

    function Delete($path)
    {
        if (is_dir($path) === true)
        {
            $files = array_diff(scandir($path), array(., ..));
            foreach ($files as $file)
            {
                Delete(realpath($path) . / . $file);
            }
            return rmdir($path);
        }
        else if (is_file($path) === true)
        {
            return unlink($path);
        }
        return false;
    }

    语法: 

    <?php
    $path = "images/";
    Delete($path); // This will delete images folder along with its contents.
    ?>



         // 32.搜索和高亮字符串中的关键字 //     

    function highlighter_text($text, $words)
    {
        $split_words = explode( " " , $words );
        foreach($split_words as $word)
        {
            $color = "#4285F4";
            $text = preg_replace("|($word)|Ui" ,
                "<span style="color:".$color.";"><b>$1</b></span>" , $text );
        }
        return $text;
    }

    语法: 

    <?php
    $string = "I like chocolates and I like apples";
    $words = "apple";
    echo highlighter_text($string ,$words);
    ?>



         // 33.写入文件 //     

    <?
    $filename = blog.csv;
    $fp = fopen($filename, w);
    $output = " Hello ";
    $output .= " World! ";
    $output .= " ";
    fputs($fp, $output);
    fclose($fp);
    ?>



         // 34.根据URL下载图片 //     

    function imagefromURL($image,$rename)
    {
    $ch = curl_init($image);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
    $rawdata=curl_exec ($ch);
    curl_close ($ch);
    $fp = fopen("$rename",w);
    fwrite($fp, $rawdata); 
    fclose($fp);
    }

    语法: 

    <?php
    $url = "http://koonk.com/images/logo.png";
    $rename = "koonk.png";
    imagefromURL($url,$rename);
    ?>



         // 35.检测URL是否有效 //     

    function isvalidURL($url)
    {
    $check = 0;
    if (filter_var($url, FILTER_VALIDATE_URL) !== false) {
      $check = 1;
    }
    return $check;
    }  

    语法:

    <?php
    $url = "http://koonk.com";
    $check = checkvalidURL($url);
    echo $check; //if returns 1 then URL is valid.
    ?>



         // 36.生成二维码 //     

    function qr_code($data, $type = "TXT", $size =150, $ec=L, $margin=0)  
    {
         $types = array("URL" =--> "http://", "TEL" => "TEL:", "TXT"=>"", "EMAIL" => "MAILTO:");
        if(!in_array($type,array("URL", "TEL", "TXT", "EMAIL")))
        {
            $type = "TXT";
        }
        if (!preg_match(/^.$types[$type]./, $data))
        {
            $data = str_replace("\", "", $types[$type]).$data;
        }
        $ch = curl_init();
        $data = urlencode($data);
        curl_setopt($ch, CURLOPT_URL, http://chart.apis.google.com/chart);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, chs=.$size.x.$size.&cht=qr&chld=.$ec.|.$margin.&chl=.$data);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HEADER, false);
        curl_setopt($ch, CURLOPT_TIMEOUT, 30);
        $response = curl_exec($ch);
        curl_close($ch);
        return $response;
    }

    语法: 

    <?php
    header("Content-type: image/png");
    echo qr_code("http://koonk.com", "URL");
    ?>



         // 37.计算两个地图坐标之间的距离 //     

    function getDistanceBetweenPointsNew($latitude1, $longitude1, $latitude2, $longitude2) {
        $theta = $longitude1 - $longitude2;
        $miles = (sin(deg2rad($latitude1)) * sin(deg2rad($latitude2))) + (cos(deg2rad($latitude1)) * cos(deg2rad($latitude2)) * cos(deg2rad($theta)));
        $miles = acos($miles);
        $miles = rad2deg($miles);
        $miles = $miles * 60 * 1.1515;
        $feet = $miles * 5280;
        $yards = $feet / 3;
        $kilometers = $miles * 1.609344;
        $meters = $kilometers * 1000;
        return compact(miles,feet,yards,kilometers,meters); 
    }

    语法: 

    <?php
    $point1 = array(lat => 40.770623, long => -73.964367);
    $point2 = array(lat => 40.758224, long => -73.917404);
    $distance = getDistanceBetweenPointsNew($point1[lat], $point1[long], $point2[lat], $point2[long]);
    foreach ($distance as $unit => $value) {
        echo $unit.: .number_format($value,4).;
    }
    ?>



         // 38.获取一个特定话题标签的所有推文 //      

    function getTweets($hash_tag) {
        $url = http://search.twitter.com/search.atom?q=.urlencode($hash_tag) ;
        echo "<p>Connecting to <strong>$url</strong> ...</p>";
        $ch = curl_init($url);
        curl_setopt ($ch, CURLOPT_RETURNTRANSFER, TRUE);
        $xml = curl_exec ($ch);
        curl_close ($ch);
        //If you want to see the response from Twitter, uncomment this next part out:
        //echo "<p>Response:</p>";
        //echo "<pre>".htmlspecialchars($xml)."</pre>";
        $affected = 0;
        $twelement = new SimpleXMLElement($xml);
        foreach ($twelement->entry as $entry) {
            $text = trim($entry->title);
            $author = trim($entry->author->name);
            $time = strtotime($entry->published);
            $id = $entry->id;
            echo "<p>Tweet from ".$author.": <strong>".$text."</strong>  <em>Posted ".date(n/j/y g:i a,$time)."</em></p>";
        }
        return true ;
    }



         // 39.添加th,st,nd或者rd作为数字的后缀 //     

    Friday the 13th
    function ordinal($cdnl){ 
        $test_c = abs($cdnl) % 10; 
        $ext = ((abs($cdnl) %100 < 21 && abs($cdnl) %100 > 4) ? th
                : (($test_c < 4) ? ($test_c < 3) ? ($test_c < 2) ? ($test_c < 1) 
                ? th : st : nd : rd : th)); 
        return $cdnl.$ext; 
    }

    语法: 

    <?php
    $number = 10;
    echo ordinal($number); //output is 10th
    ?>



         // 40.限制文件下载的速度 //      

    <?php
    // local file that should be send to the client
    $local_file = test-file.zip;
    // filename that the user gets as default
    $download_file = your-download-name.zip;
        
    // set the download rate limit (=> 20,5 kb/s)
    $download_rate = 20.5; 
    if(file_exists($local_file) && is_file($local_file)) {
        // send headers
        header(Cache-control: private);
        header(Content-Type: application/octet-stream); 
        header(Content-Length: .filesize($local_file));
        header(Content-Disposition: filename=.$download_file);
        
        // flush content
        flush();    
        // open file stream
        $file = fopen($local_file, "r");    
        while(!feof($file)) {
        
            // send the current file part to the browser
            print fread($file, round($download_rate * 1024));    
        
            // flush the content to the browser
            flush();
        
            // sleep one second
            sleep(1);    
        }    
        
        // close file stream
        fclose($file);}
    else {
        die(Error: The file .$local_file. does not exist!);
    }
    ?>



         // 41.把文本转换成图片 //     

    <?php
    header("Content-type: image/png");
    $string = $_GET[text];
    $im = imagecreatefrompng("images/button.png");
    $color = imagecolorallocate($im, 255, 255, 255);
    $px = (imagesx($im) - 7.5 * strlen($string)) / 2;
    $py = 9;
    $fontSize = 1;
    imagestring($im, fontSize, $px, $py, $string, $color);
    imagepng($im);
    imagedestroy($im);
    ?>



         // 42.获取远程文件的大小 //      

    function remote_filesize($url, $user = "", $pw = "")
    {
        ob_start();
        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_HEADER, 1);
        curl_setopt($ch, CURLOPT_NOBODY, 1);
        if(!empty($user) && !empty($pw))
        {
            $headers = array(Authorization: Basic .  base64_encode("$user:$pw"));
            curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        }
        $ok = curl_exec($ch);
        curl_close($ch);
        $head = ob_get_contents();
        ob_end_clean();
        $regex = /Content-Length:s([0-9].+?)s/;
        $count = preg_match($regex, $head, $matches);
        return isset($matches[1]) ? $matches[1] : "unknown";
    }

    语法: 

    <?php
    $file = "http://koonk.com/images/logo.png";
    $size = remote_filesize($url);
    echo $size;
    ?>



         // 43.使用imagebrick进行pdf到图像的转换 //     

    <?php
    $pdf_file   = ./pdf/demo.pdf;
    $save_to    = ./jpg/demo.jpg;     //make sure that apache has permissions to write in this folder! (common problem)
    //execute ImageMagick command convert and convert PDF to JPG with applied settings
    exec(convert ".$pdf_file." -colorspace RGB -resize 800 ".$save_to.", $output, $return_var);
    if($return_var == 0) {              //if exec successfuly converted pdf to jpg
        print "Conversion OK";
    }
    else print "Conversion failed.".$output;
    ?>



         // 44.使用tinyurl生成短网址 //     

    function get_tiny_url($url)  
    {  
        $ch = curl_init();  
        $timeout = 5;  
        curl_setopt($ch,CURLOPT_URL,http://tinyurl.com/api-create.php?url=.$url);  
        curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);  
        curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);  
        $data = curl_exec($ch);  
        curl_close($ch);  
        return $data;  
    }

    语法: 

    <?php
    $url = "http://blog.koonk.com/2015/07/Hello-World";
    $tinyurl = get_tiny_url($url);
    echo $tinyurl;
    ?>



         // 45.YouTube下载链接生成器 //     

    使用下面的PHP片段可以让你的用户下载Youtube视频

    function str_between($string, $start, $end)
    $string = " ".$string; $ini = strpos($string,$start); if ($ini == 0) return ""; $ini += strlen($start); $len = strpos($string,$end,$ini) - $ini; return substr($string,$ini,$len); }
    function get_youtube_download_link(){
        $youtube_link = $_GET[youtube];
        $youtube_page = file_get_contents($youtube_link);
        $v_id = str_between($youtube_page, "&video_id=", "&");
        $t_id = str_between($youtube_page, "&t=", "&");
        $flv_link = "http://www.youtube.com/get_video?video_id=$v_id&t=$t_id";
        $hq_flv_link = "http://www.youtube.com/get_video?video_id=$v_id&t=$t_id&fmt=6";
        $mp4_link = "http://www.youtube.com/get_video?video_id=$v_id&t=$t_id&fmt=18";
        $threegp_link = "http://www.youtube.com/get_video?video_id=$v_id&t=$t_id&fmt=17";
        echo " Download (right-click > save as): ";
        echo "<a href="$flv_link">FLV</a> ";
        echo "<a href="$hq_flv_link">HQ FLV (if available)</a> ";
        echo "<a href="$mp4_link">MP4</a> ";
        echo "<a href="$threegp_link">3GP</a> ";
    }



         // 46. Facebook样式的时间戳 //     

    Facebook (x mins age, y hours ago etc)
    function nicetime($date)
    {
        if(empty($date)) {
            return "No date provided";
        }
           
        $periods         = array("second", "minute", "hour", "day", "week", "month", "year", "decade");
        $lengths         = array("60","60","24","7","4.35","12","10");
           
        $now             = time();
        $unix_date         = strtotime($date);
           
           // check validity of date
        if(empty($unix_date)) {    
            return "Bad date";
        }
        // is it future date or past date
        if($now > $unix_date) {    
            $difference     = $now - $unix_date;
            $tense         = "ago";
               
        } else {
            $difference     = $unix_date - $now;
            $tense         = "from now";
        }
           
        for($j = 0; $difference >= $lengths[$j] && $j < count($lengths)-1; $j++) {
            $difference /= $lengths[$j];
        }
           
        $difference = round($difference);
           
        if($difference != 1) {
            $periods[$j].= "s";
        }
           
        return "$difference $periods[$j] {$tense}";
    }

    语法: 

    <?php
    $date = "2015-07-05 03:45";
    $result = nicetime($date); // 2 days ago
    ?>



         // 47.黑名单过滤 //     

    function is_spam($text, $file, $split = :, $regex = false){ 
        $handle = fopen($file, rb); 
        $contents = fread($handle, filesize($file)); 
        fclose($handle); 
        $lines = explode("n", $contents); 
        $arr = array(); 
        foreach($lines as $line){ 
            list($word, $count) = explode($split, $line); 
            if($regex) 
                $arr[$word] = $count; 
            else
                $arr[preg_quote($word)] = $count; 
        } 
        preg_match_all("~".implode(|, array_keys($arr))."~", $text, $matches); 
        $temp = array(); 
        foreach($matches[0] as $match){ 
            if(!in_array($match, $temp)){ 
                $temp[$match] = $temp[$match] + 1; 
                if($temp[$match] >= $arr[$word]) 
                    return true; 
            } 
        } 
        return false; 
     
    $file = spam.txt; 
    $str = This string has cat, dog word; 
    if(is_spam($str, $file)) 
        echo this is spam; 
    else
        echo this is not spam;

    输出:

    ab:3
    dog:3
    cat:2
    monkey:2



         // 48.随机颜色生成器 //     

    function randomColor() { 
        $str = #; 
        for($i = 0 ; $i < 6 ; $i++) { 
            $randNum = rand(0 , 15); 
            switch ($randNum) { 
                case 10: $randNum = A; break; 
                case 11: $randNum = B; break; 
                case 12: $randNum = C; break; 
                case 13: $randNum = D; break; 
                case 14: $randNum = E; break; 
                case 15: $randNum = F; break; 
            } 
            $str .= $randNum; 
        } 
        return $str; 
    $color = randomColor();



         // 49.从网络下载文件 //     

    set_time_limit(0); 
    // Supports all file types 
    // URL Here: 
    $url = http://somsite.com/some_video.flv; 
    $pi = pathinfo($url); 
    $ext = $pi[extension]; 
    $name = $pi[filename]; 
     
    // create a new cURL resource 
    $ch = curl_init(); 
     
    // set URL and other appropriate options 
    curl_setopt($ch, CURLOPT_URL, $url); 
    curl_setopt($ch, CURLOPT_HEADER, false); 
    curl_setopt($ch, CURLOPT_BINARYTRANSFER, true); 
    curl_setopt($ch, CURLOPT_AUTOREFERER, true); 
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); 
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
     
    // grab URL and pass it to the browser 
    $opt = curl_exec($ch); 
     
    // close cURL resource, and free up system resources 
    curl_close($ch); 
     
    $saveFile = $name...$ext; 
    if(preg_match("/[^0-9a-z._-]/i", $saveFile)) 
    $saveFile = md5(microtime(true))...$ext; 
     
    $handle = fopen($saveFile, wb); 
    fwrite($handle, $opt); 
    fclose($handle);



         // 50.Alexa / Google页面排名 //     

    function page_rank($page, $type = alexa){ 
        switch($type){ 
            case alexa: 
                $url = http://alexa.com/siteinfo/; 
                $handle = fopen($url.$page, r); 
                break; 
            case google: 
                $url = http://google.com/search?client=navclient-auto&ch=6-1484155081&features=Rank&q=info:;
                $handle = fopen($url.http://.$page, r); 
                break; 
        } 
        $content = stream_get_contents($handle); 
        fclose($handle); 
        $content = preg_replace("~(n|t|ss+)~",, $content); 
        switch($type){ 
            case alexa: 
                if(preg_match(~< class="data (down|up)"><img.+?>(.+?) </>~im,$content,$matches)){ 
                    return $matches[2]; 
                }else{ 
                return FALSE; 
                } 
                break; 
            case google: 
                $rank = explode(:,$content); 
                if($rank[2] != ) 
                    return $rank[2]; 
                else
                    return FALSE; 
                break; 
            default: 
                return FALSE; 
                break; 
        } 
    // Alexa Page Rank: 
    echo Alexa Rank: .page_rank(techug.com); 
    echo
    // Google Page Rank 
    echo Google Rank: .page_rank(techug.com, google);



         /51.强制下载文件 //     

    $filename = $_GET[file]; //Get the fileid from the URL 
    // Query the file ID 
    $query = sprintf("SELECT * FROM tableName WHERE id = %s",mysql_real_escape_string($filename)); 
    $sql = mysql_query($query); 
    if(mysql_num_rows($sql) > 0){ 
        $row = mysql_fetch_array($sql); 
        // Set some headers 
        header("Pragma: public"); 
        header("Expires: 0"); 
        header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); 
        header("Content-Type: application/force-download"); 
        header("Content-Type: application/octet-stream"); 
        header("Content-Type: application/download"); 
        header("Content-Disposition: attachment; filename=".basename($row[FileName]).";"); 
        header("Content-Transfer-Encoding: binary"); 
        header("Content-Length: ".filesize($row[FileName])); 
     
        @readfile($row[FileName]); 
        exit(0); 
    }else{ 
        header("Location: /"); 
        exit; 
    }



         // 52.通过电子邮件显示用户的的Gravatar头像 //     

    $gravatar_link = http://www.gravatar.com/avatar/ . md5($comment_author_email) . ?s=32;
    echo <lt;img src=" . $gravatar_link . " />;



         // 53.通过卷曲获取RSS订阅数 //     

    $ch = curl_init();
    curl_setopt($ch,CURLOPT_URL,https://feedburner.google.com/api/awareness/1.0/GetFeedData?id=7qkrmib4r9rscbplq5qgadiiq4);
    curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
    curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,2);
    $content = curl_exec($ch);
    $subscribers = get_match(/circulation="(.*)"/isU,$content);
    curl_close($ch);



         // 54.时间差异计算函数 //     

    function ago($time)
    {
        $periods = array("second", "minute", "hour", "day", "week", "month", "year", "decade");
        $lengths = array("60","60","24","7","4.35","12","10");
        $now = time();
        $difference = $now - $time;
        $tense = "ago";
        for($j = 0; $difference >= $lengths[$j] && $j < count($lengths)-1; $j++) {
            $difference /= $lengths[$j];
        }
        $difference = round($difference);
        if($difference != 1) {
            $periods[$j].= "s";
        }
        return "$difference $periods[$j] ago ";
    }



         /55.裁剪图片 //     

    $filename= "test.jpg";
    list($w, $h, $type, $attr) = getimagesize($filename);
    $src_im = imagecreatefromjpeg($filename);
     
    $src_x = 0; // begin x
    $src_y = 0; // begin y
    $src_w = 100; // width
    $src_h = 100; // height
    $dst_x = 0; // destination x
    $dst_y = 0; // destination y
     
    $dst_im = imagecreatetruecolor($src_w, $src_h);
    $white = imagecolorallocate($dst_im, 255, 255, 255);
    imagefill($dst_im, 0, 0, $white);
     
    imagecopy($dst_im, $src_im, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h);
     
    header("Content-type: image/png");
    imagepng($dst_im);
    imagedestroy($dst_im);



         // 56.检查网站是否宕机 //     

    function Visit($url){
        $agent = "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)";$ch=curl_init();
        curl_setopt ($ch, CURLOPT_URL,$url );
        curl_setopt($ch, CURLOPT_USERAGENT, $agent);
        curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt ($ch,CURLOPT_VERBOSE,false);
        curl_setopt($ch, CURLOPT_TIMEOUT, 5);
        curl_setopt($ch,CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch,CURLOPT_SSLVERSION,3);
        curl_setopt($ch,CURLOPT_SSL_VERIFYHOST, FALSE);
        $page=curl_exec($ch);
        //echo curl_error($ch);
        $httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        curl_close($ch);
        if($httpcode>=200 && $httpcode<300) return true;
        else return false;
    }
    if (Visit("http://www.google.com"))
        echo "Website OK"."n";
    else
        echo "Website DOWN";


    - the end -

    责任编辑/Wenda



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