十个超级有用的PHP代码片断

十个超级有用的PHP代码片段

1. 发送短信

调用 TextMagic
API。

`01`	`// Include the TextMagic PHP lib`

`02`	`require` `(` `'textmagic-sms-api-php/TextMagicAPI.php'` `);`

03 ?

`04`	`// Set the username and password information`

`05`	`$username` `=` `'myusername'` `;`

`06`	`$password` `=` `'mypassword'` `;`

07 ?

`08`	`// Create a new instance of TM`

`09`	`$router` `=` `new` `TextMagicAPI(` `array` `(`

`10`	`????` `'username'` `=>` `$username` `,`

`11`	`????` `'password'` `=>` `$password`

12 ));

13 ?

`14`	`// Send a text message to '999-123-4567'`

`15`	`$result` `=` `$router` `->send(` `'Wake up!'` `,` `array` `(9991234567), true);`

16 ?

`17`	`// result:? Result is: Array ( [messages] => Array ( [19896128] => 9991234567 ) [sent_text] => Wake up! [parts_count] => 1 )`

2. 根据IP查找地址

`01`	`function` `detect_city(` `$ip` `) {`

02 ?

`03`	`????????` `$default` `=` `'UNKNOWN'` `;`

04 ?

`05`	`????????` `if` `(!` `is_string` `(` `$ip` `) \|\|` `strlen` `(` `$ip` `) < 1 \|\|` `$ip` `==` `'127.0.0.1'` `\|\|` `$ip` `==` `'localhost'` `)`

`06`	`????????????` `$ip` `=` `'8.8.8.8'` `;`

07 ?

`08`	`????????` `$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)'` `;`

09 ?

`10`	`????????` `$url` `=` `'http://ipinfodb.com/ip_locator.php?ip='` `. urlencode(` `$ip` `);`

`11`	`????????` `$ch` `= curl_init();`

12 ?

`13`	`????????` `$curl_opt` `=` `array` `(`

`14`	`????????????` `CURLOPT_FOLLOWLOCATION? => 1,`

`15`	`????????????` `CURLOPT_HEADER????? => 0,`

`16`	`????????????` `CURLOPT_RETURNTRANSFER? => 1,`

`17`	`????????????` `CURLOPT_USERAGENT?? =>` `$curlopt_useragent` `,`

`18`	`????????????` `CURLOPT_URL?????? =>` `$url` `,`

`19`	`????????????` `CURLOPT_TIMEOUT???????? => 1,`

`20`	`????????????` `CURLOPT_REFERER???????? =>` `'http://'` `.` `$_SERVER` `[` `'HTTP_HOST'` `],`

`21`	`????????` `);`

22 ?

`23`	`????????` `curl_setopt_array(` `$ch` `,` `$curl_opt` `);`

24 ?

`25`	`????????` `$content` `= curl_exec(` `$ch` `);`

26 ?

`27`	`????????` `if` `(!` `is_null` `(` `$curl_info` `)) {`

`28`	`????????????` `$curl_info` `= curl_getinfo(` `$ch` `);`

`29`	`????????` `}`

30 ?

`31`	`????????` `curl_close(` `$ch` `);`

32 ?

`33`	`????????` `if` `( preg_match(` `'{<li>City : ([^<]*)</li>}i'` `,` `$content` `,` `$regs` `) )? {`

`34`	`????????????` `$city` `=` `$regs` `[1];`

`35`	`????????` `}`

`36`	`????????` `if` `( preg_match(` `'{<li>State/Province : ([^<]*)</li>}i'` `,` `$content` `,` `$regs` `) )? {`

`37`	`????????????` `$state` `=` `$regs` `[1];`

`38`	`????????` `}`

39 ?

`40`	`????????` `if` `(` `$city` `!=` `''` `&&` `$state` `!=` `''` `){`

`41`	`??????????` `$location` `=` `$city` `.` `', '` `.` `$state` `;`

`42`	`??????????` `return` `$location` `;`

`43`	`????????` `}` `else` `{`

`44`	`??????????` `return` `$default` `;`

`45`	`????????` `}`

46 ?

`47`	`????` `}`

3. 显示网页的源代码

`1`	`<?php` `// display source code`

`2`	`$lines` `= file(` `'http://google.com/'` `);`

`3`	`foreach` `(` `$lines` `as` `$line_num` `=>` `$line` `) {`

`4`	`????` `// loop thru each line and prepend line numbers`

`5`	`????` `echo` `"Line #<b>{$line_num}</b> : "` `. htmlspecialchars(` `$line` `) .` `"<br>\n"` `;`

6 }

4. 检查服务器是否使用HTTPS

`1`	`if` `(` `$_SERVER` `[` `'HTTPS'` `] !=` `"on"` `) {`

`2`	`????` `echo` `"This is not HTTPS"` `;`

`3`	`}` `else` `{`

`4`	`????` `echo` `"This is HTTPS"` `;`

5 }

5. 显示Facebook fans数量

`1`	`function` `fb_fan_count(` `$facebook_name` `){`

`2`	`????` `// Example: https://graph.facebook.com/digimantra`

`3`	`????` `$data` `= json_decode(` `file_get_contents` `(` `"https://graph.facebook.com/"` `.` `$facebook_name` `));`

`4`	`????` `echo` `$data` `->likes;`

5 }

6. 检测图片的主要颜色

`01`	`$i` `= imagecreatefromjpeg(` `"image.jpg"` `);`

02 ?

`03`	`for` `(` `$x` `=0;` `$x` `<imagesx(` `$i` `);` `$x` `++) {`

`04`	`????` `for` `(` `$y` `=0;` `$y` `<imagesy(` `$i` `);` `$y` `++) {`

`05`	`????????` `$rgb` `= imagecolorat(` `$i` `,` `$x` `,` `$y` `);`

`06`	`????????` `$r` ?? `= (` `$rgb` `>> 16) & 0xFF;`

`07`	`????????` `$g` ?? `= (` `$rgb` `>>? & 0xFF;`

`08`	`????????` `$b` ?? `=` `$rgb` `& 0xFF;`

09 ?

`10`	`????????` `$rTotal` `+=` `$r` `;`

`11`	`????????` `$gTotal` `+=` `$g` `;`

`12`	`????????` `$bTotal` `+=` `$b` `;`

`13`	`????????` `$total` `++;`

`14`	`????` `}`

15 }

16 ?

`17`	`$rAverage` `=` `round` `(` `$rTotal` `/` `$total` `);`

`18`	`$gAverage` `=` `round` `(` `$gTotal` `/` `$total` `);`

`19`	`$bAverage` `=` `round` `(` `$bTotal` `/` `$total` `);`

7. 获取内存使用信息

`01`	`echo` `"Initial: "` `.memory_get_usage().` `" bytes \n"` `;`

`02`	`/* prints`

`03`	`Initial: 361400 bytes`

04 */

05 ?

`06`	`// let's use up some memory`

`07`	`for` `(` `$i` `= 0;` `$i` `< 100000;` `$i` `++) {`

`08`	`????` `$array` `[]= md5(` `$i` `);`

09 }

10 ?

`11`	`// let's remove half of the array`

`12`	`for` `(` `$i` `= 0;` `$i` `< 100000;` `$i` `++) {`

`13`	`????` `unset(` `$array` `[` `$i` `]);`

14 }

15 ?

`16`	`echo` `"Final: "` `.memory_get_usage().` `" bytes \n"` `;`

`17`	`/* prints`

`18`	`Final: 885912 bytes`

19 */

20 ?

`21`	`echo` `"Peak: "` `.memory_get_peak_usage().` `" bytes \n"` `;`

`22`	`/* prints`

`23`	`Peak: 13687072 bytes`

24 */

8. 使用 gzcompress() 压缩数据

`01`	`$string` `=`

`02`	`"Lorem ipsum dolor sit amet, consectetur`

`03`	`adipiscing elit. Nunc ut elit id mi ultricies`

`04`	`adipiscing. Nulla facilisi. Praesent pulvinar,`

`05`	`sapien vel feugiat vestibulum, nulla dui pretium orci,`

`06`	`non ultricies elit lacus quis ante. Lorem ipsum dolor`

`07`	`sit amet, consectetur adipiscing elit. Aliquam`

`08`	`pretium ullamcorper urna quis iaculis. Etiam ac massa`

`09`	`sed turpis tempor luctus. Curabitur sed nibh eu elit`

`10`	`mollis congue. Praesent ipsum diam, consectetur vitae`

`11`	`ornare a, aliquam a nunc. In id magna pellentesque`

`12`	`tellus posuere adipiscing. Sed non mi metus, at lacinia`

`13`	`augue. Sed magna nisi, ornare in mollis in, mollis`

`14`	`sed nunc. Etiam at justo in leo congue mollis.`

15