1. 使用textmagic api发送消息可能有的时候，你需要发送一些短信给你的客户，那么你绝对应该看看textmagic。它提供了非常简单的api来实现这个功能。但是不是免费的。
1234567891011121314151617 // include the textmagic php librequire('textmagic-sms-api-php/textmagicapi.php'); // set the username and password information$username = 'myusername';$password = 'mypassword'; // create a new instance of tm$router = new textmagicapi(array( 'username' => $username, 'password' => $password)); // send a text message to '999-123-4567'$result = $router->send('wake up!', array(9991234567), true); // result: result is: array ( [messages] => array ( [19896128] => 9991234567 ) [sent_text] => wake up! [parts_count] => 1 )
2. 通过ip判断来源这是一个非常实用的代码片段，可以帮助你通过ip来判断访客来源。下面的方法通过接收一个参数，然后返回ip所在地点。如果没有找到，则返回unknown。
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647 function detect_city($ip) { $default = 'unknown'; if (!is_string($ip) || strlen($ip) $ip == '127.0.0.1' || $ip == 'localhost') $ip = '8.8.8.8'; $curlopt_useragent = 'mozilla/5.0 (windows; u; windows nt 5.1; en-us; rv:1.9.2) gecko/20100115 firefox/3.6 (.net clr 3.5.30729)'; $url = 'http://ipinfodb.com/ip_locator.php?ip=' . urlencode($ip); $ch = curl_init(); $curl_opt = array( curlopt_followlocation => 1, curlopt_header => 0, curlopt_returntransfer => 1, curlopt_useragent => $curlopt_useragent, curlopt_url => $url, curlopt_timeout => 1, curlopt_referer => 'http://' . $_server['http_host'], ); curl_setopt_array($ch, $curl_opt); $content = curl_exec($ch); if (!is_null($curl_info)) { $curl_info = curl_getinfo($ch); } curl_close($ch); if ( preg_match('{city : ([^}i', $content, $regs) ) { $city = $regs[1]; } if ( preg_match('{state/province : ([^}i', $content, $regs) ) { $state = $regs[1]; } if( $city!='' && $state!='' ){ $location = $city . ', ' . $state; return $location; }else{ return $default; } }
3. 显示任何网页的源代码是不是想显示带有行号的任何网页的源代码？这里有个简单的代码片段，你只需要修改第二行的url即可。
123456 $line) { // loop thru each line and prepend line numbers echo line #{$line_num} : . htmlspecialchars($line) .
\n;}
4. 判断服务器是否是https连接需要判断代码运行环境是否是https服务器？下面的代码可以帮助你实现，非常简单！
12345 if ($_server['https'] != on) { echo this is not https;}else{ echo this is https;}
5. 在文本中显示facebook 粉丝数想看看你在facebook有多少粉丝么？下面代码可以帮助你实现。
12345 function fb_fan_count($facebook_name){ // example: https://graph.facebook.com/digimantra $data = json_decode(file_get_contents(https://graph.facebook.com/.$facebook_name)); echo $data->likes;}
6. 判断一张图片的主色调下面这个代码非常实用，能帮助你判断一张图片中的主色调，你可以分析任何图片。
12345678910111213141516171819 $i = imagecreatefromjpeg(image.jpg); for ($x=0;$x$i);$x++) { for ($y=0;$y$i);$y++) { $rgb = imagecolorat($i,$x,$y); $r = ($rgb >> 16) & 0xff; $g = ($rgb >> & 0xff; $b = $rgb & 0xff; $rtotal += $r; $gtotal += $g; $btotal += $b; $total++; }} $raverage = round($rtotal/$total);$gaverage = round($gtotal/$total);$baverage = round($btotal/$total);
7. 了解你的内存使用情况为了优化你的脚本，你需要了解服务器上的ram使用情况。这个代码片段将帮助你了解内存使用，并且打印初始、最终以及峰值使用情况。
123456789101112131415161718192021222324 echo initial: .memory_get_usage(). bytes \n;/* printsinitial: 361400 bytes*/ // let's use up some memoryfor ($i = 0; $i $i++) { $array []= md5($i);} // let's remove half of the arrayfor ($i = 0; $i $i++) { unset($array[$i]);} echo final: .memory_get_usage(). bytes \n;/* printsfinal: 885912 bytes*/ echo peak: .memory_get_peak_usage(). bytes \n;/* printspeak: 13687072 bytes*/
8. 使用gzcompress()压缩数据当使用很长的string时，可以通过gzcompress()方法，将strings压缩。解压缩使用gzuncompress()即可。代码如下。
1234567891011121314151617181920212223242526272829303132 $string =lorem ipsum dolor sit amet, consecteturadipiscing elit. nunc ut elit id mi ultriciesadipiscing. nulla facilisi. praesent pulvinar,sapien vel feugiat vestibulum, nulla dui pretium orci,non ultricies elit lacus quis ante. lorem ipsum dolorsit amet, consectetur adipiscing elit. aliquampretium ullamcorper urna quis iaculis. etiam ac massased turpis tempor luctus. curabitur sed nibh eu elitmollis congue. praesent ipsum diam, consectetur vitaeornare a, aliquam a nunc. in id magna pellentesquetellus posuere adipiscing. sed non mi metus, at laciniaaugue. sed magna nisi, ornare in mollis in, mollissed nunc. etiam at justo in leo congue mollis.nullam in neque eget metus hendrerit scelerisqueeu non enim. ut malesuada lacus eu nulla bibendumid euismod urna sodales. ; $compressed = gzcompress($string); echo original size: . strlen($string).\n;/* printsoriginal size: 800*/ echo compressed size: . strlen($compressed).\n;/* printscompressed size: 418*/ // getting it back$original = gzuncompress($compressed);
9. 使用php执行whois查询如果你需要得到指定域名的whois信息，为什么不使用php呢？下面的代码可以帮助大家。
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081 function whois_query($domain) { // fix the domain name: $domain = strtolower(trim($domain)); $domain = preg_replace('/^http:\/\//i', '', $domain); $domain = preg_replace('/^www\./i', '', $domain); $domain = explode('/', $domain); $domain = trim($domain[0]); // split the tld from domain name $_domain = explode('.', $domain); $lst = count($_domain)-1; $ext = $_domain[$lst]; // you find resources and lists // like these on wikipedia: // // http://de.wikipedia.org/wiki/whois // $servers = array( biz => whois.neulevel.biz, com => whois.internic.net, us => whois.nic.us, coop => whois.nic.coop, info => whois.nic.info, name => whois.nic.name, net => whois.internic.net, gov => whois.nic.gov, edu => whois.internic.net, mil => rs.internic.net, int => whois.iana.org, ac => whois.nic.ac, ae => whois.uaenic.ae, at => whois.ripe.net, au => whois.aunic.net, be => whois.dns.be, bg => whois.ripe.net, br => whois.registro.br, bz => whois.belizenic.bz, ca => whois.cira.ca, cc => whois.nic.cc, ch => whois.nic.ch, cl => whois.nic.cl, cn => whois.cnnic.net.cn, cz => whois.nic.cz, de => whois.nic.de, fr => whois.nic.fr, hu => whois.nic.hu, ie => whois.domainregistry.ie, il => whois.isoc.org.il, in => whois.ncst.ernet.in, ir => whois.nic.ir, mc => whois.ripe.net, to => whois.tonic.to, tv => whois.tv, ru => whois.ripn.net, org => whois.pir.org, aero => whois.information.aero, nl => whois.domain-registry.nl ); if (!isset($servers[$ext])){ die('error: no matching nic server found!'); } $nic_server = $servers[$ext]; $output = ''; // connect to whois server: if ($conn = fsockopen ($nic_server, 43)) { fputs($conn, $domain.\r\n); while(!feof($conn)) { $output .= fgets($conn,128); } fclose($conn); } else { die('error: could not connect to ' . $nic_server . '!'); } return $output;}
10. 不显示php错误而发送电子邮件取代之如果你不想在页面中显示php错误，也可以通过email来获取错误信息。下面的代码可以帮助你实现。
123456789101112131415161718192021222324252627282930 $number) occurred on line $line and in the file: $file.
$message ; $email .=
. print_r($vars, 1) . ; $headers = 'content-type: text/html; charset=iso-8859-1' . \r\n; // email the error to someone... error_log($email, 1, 'you@youremail.com', $headers); // make sure that you decide how to respond to errors (on the user's side) // either echo an error message, or kill the entire project. up to you... // the code below ensures that we only die if the error was more than // just a notice. if ( ($number !== e_notice) && ($number die(there was an error. please try again later.); }} // we should use our custom function to handle errors.set_error_handler('nettuts_error_handler'); // trigger an error... (var doesn't exist)echo $somevarthatdoesnotexist;
英文原文：10 super useful php snippets you probably haven’t seen
http://www.bkjia.com/phpjc/971764.htmlwww.bkjia.comtruehttp://www.bkjia.com/phpjc/971764.htmltecharticle非常实用的php代码片段推荐， 当使用php进行开发的时候，如果你自己收 藏 了一些非常有用的方法或者代码片段，那么将会给你的开发工作...