10个有用的代码

[代码] 关键词高亮

1	function highlight($sString, $aWords) {

2	if (!is_array ($aWords) || empty ($aWords) || !is_string ($sString)) {

3	return false;

4

}

5

6	$sWords = implode ('|', $aWords);

7	return preg_replace ('@\b('.$sWords.')\b@si', '$1', $sString);

8

}

[代码] 获取你的Feedburner的用户

01	function get_average_readers($feed_id,$interval = 7){

02	$today = date('Y-m-d', strtotime("now"));

03	$ago = date('Y-m-d', strtotime("-".$interval." days"));

04	$feed_url="".$feed_id."&dates=".$ago.",".$today;

05	$ch = curl_init();

06	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

07	curl_setopt($ch, CURLOPT_URL, $feed_url);

08	$data = curl_exec($ch);

09	curl_close($ch);

10	$xml = new SimpleXMLElement($data);

11	$fb = $xml->feed->entry['circulation'];

12

13

$nb = 0;

14	foreach($xml->feed->children() as $circ){

15	$nb += $circ['circulation'];

16

}

17

18	return round($nb/$interval);

19

}

[代码] 自动生成密码

01	function generatePassword($length=9, $strength=0) {

02	$vowels = 'aeuy';

03	$consonants = 'bdghjmnpqrstvz';

04	if ($strength >= 1) {

05	$consonants .= 'BDGHJLMNPQRSTVWXZ';

06

}

07	if ($strength >= 2) {

08	$vowels .= "AEUY";

09

}

10	if ($strength >= 4) {

11	$consonants .= '23456789';

12

}

13	if ($strength >= 8 ) {

14	$vowels .= '@#$%';

15

}

16

17	$password = '';

18	$alt = time() % 2;

19	for ($i = 0; $i < $length; $i++) {

20	if ($alt == 1) {

21	$password .= $consonants[(rand() % strlen($consonants))];

22

$alt = 0;

23

} else {

24	$password .= $vowels[(rand() % strlen($vowels))];

25

$alt = 1;

26

}

27

}

28	return $password;

29

}

[代码] 压缩多个CSS文件

01	header('Content-type: text/css');

02	ob_start("compress");

03	function compress($buffer) {

04	/* remove comments */

05	$buffer = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $buffer);

06	/* remove tabs, spaces, newlines, etc. */

07	$buffer = str_replace(array("\r\n", "\r", "\n", "\t", '  ', '    ', '    '), '', $buffer);

08	return $buffer;

09

}

10

11	/* your css files */

12	include('master.css');

13	include('typography.css');

14	include('grid.css');

15	include('print.css');

16	include('handheld.css');

17

18	ob_end_flush();

[代码] 获取短网址

1	function getTinyUrl($url) {

2	return file_get_contents("".$url);

3

}

[代码] 根据生日计算年龄

01	function age($date){

02	$year_diff = '';

03	$time = strtotime($date);

04	if(FALSE === $time){

05	return '';

06

}

07

08	$date = date('Y-m-d', $time);

09	list($year,$month,$day) = explode("-",$date);

10	$year_diff = date("Y") – $year;

11	$month_diff = date("m") – $month;

12	$day_diff = date("d") – $day;

13	if ($day_diff < 0 || $month_diff < 0) $year_diff–;

14

15	return $year_diff;

16

}

[代码] 计算执行时间

01	//Create a variable for start time

02	$time_start = microtime(true);

03

04	// Place your PHP/HTML/JavaScript/CSS/Etc. Here

05

06	//Create a variable for end time

07	$time_end = microtime(true);

08	//Subtract the two times to get seconds

09	$time = $time_end - $time_start;

10

11	echo 'Script took '.$time.' seconds to execute';

[代码] PHP的维护模式

01	function maintenance($mode = FALSE){

02	if($mode){

03	if(basename($_SERVER['SCRIPT_FILENAME']) != 'maintenance.php'){

04	header("Location: ");

05

exit;

06

}

07

}else{

08	if(basename($_SERVER['SCRIPT_FILENAME']) == 'maintenance.php'){

09	header("Location: ");

10

exit;

11

}

12

}

13

}

[代码] 阻止CSS样式被缓存

1	"/stylesheet.css?" rel="stylesheet" type="text/css" /&glt;

[代码] 为数字增加 st\nd\rd 等

01	function make_ranked($rank) {

02	$last = substr( $rank, -1 );

03	$seclast = substr( $rank, -2, -1 );

04	if( $last > 3 || $last == 0 ) $ext = 'th';

05	else if( $last == 3 ) $ext = 'rd';

06	else if( $last == 2 ) $ext = 'nd';

07	else $ext = 'st';

08

09	if( $last == 1 && $seclast == 1) $ext = 'th';

10	if( $last == 2 && $seclast == 1) $ext = 'th';

11	if( $last == 3 && $seclast == 1) $ext = 'th';

12

13	return $rank.$ext;

14

}