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一、查看郵件是否已被閱讀
當(dāng)發(fā)送郵件后,我們都會(huì)想知道到底這個(gè)郵件是否已被對(duì)方閱讀,監(jiān)控郵件的打開率,這個(gè)時(shí)候我們就可以使用下面的這段代碼顯示對(duì)方IP地址記錄閱讀的實(shí)際日期和時(shí)間。
view sourceprint?
error_reporting(0);
Header("Content-Type:
p_w_picpath/jpeg");
//Get IP
if
(!emptyempty($_SERVER['HTTP_CLIENT_IP']))
{
$ip=$_SERVER['HTTP_CLIENT_IP'];
}
elseif
(!emptyempty($_SERVER['HTTP_X_FORWARDED_FOR']))
{
$ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
}
else
{
$ip=$_SERVER['REMOTE_ADDR'];
}
//Time
$actual_time =
time();
$actual_day =
date('Y.m.d', $actual_time);
$actual_day_chart
= date('d/m/y', $actual_time);
$actual_hour =
date('H:i:s', $actual_time);
//GET Browser
$browser =
$_SERVER['HTTP_USER_AGENT'];
//LOG
$myFile =
"log.txt";
$fh =
fopen($myFile, 'a+');
$stringData =
$actual_day . ' ' . $actual_hour . ' ' . $ip . ' ' .
$browser . ' '
."\r\n";
fwrite($fh,
$stringData);
fclose($fh);
//Generate Image
(Es. dimesion is 1x1)
$newp_w_picpath =
ImageCreate(1,1);
$grigio =
ImageColorAllocate($newp_w_picpath,255,255,255);
ImageJPEG($newp_w_picpath);
ImageDestroy($newp_w_picpath);
?>
二、從網(wǎng)頁中提取關(guān)鍵字
如果想從網(wǎng)頁中提取關(guān)鍵字,那么不妨可以試試下面這段代碼,輕松實(shí)現(xiàn):
viewsourceprint?
$meta = get_meta_tags('http://www. maiziedu.com /');
$keywords =
$meta['keywords'];
// Split keywords
$keywords =
explode(',', $keywords );
// Trim them
$keywords =
array_map( 'trim', $keywords );
// Remove empty
values
$keywords =
array_filter( $keywords );
print_r(
$keywords );
三、查找頁面上的所有鏈接
使用DOM,可以輕松從任何頁面上抓取鏈接,代碼示例如下:
view sourceprint?
$html = file_get_contents('http://www.maiziedu.com');
$dom = new
DOMDocument();
@$dom->loadHTML($html);
// grab all the
on the page
$xpath = new
DOMXPath($dom);
$hrefs =
$xpath->evaluate("/html/body//a");
for ($i = 0; $i
< $hrefs->length; $i++) {
$href =
$hrefs->item($i);
$url =
$href->getAttribute('href');
echo $url.'';
}
四、自動(dòng)轉(zhuǎn)換URL,跳轉(zhuǎn)至超鏈接
在WordPress中,如果你想自動(dòng)轉(zhuǎn)換URL,跳轉(zhuǎn)至超鏈接頁面,你可以利用內(nèi)置的函數(shù)make_clickable()執(zhí)行此操作。如果你想基于WordPress之外操作該程序,那么你可以參考wp-includes/formatting.php源代碼。
view sourceprint?
function _make_url_clickable_cb($matches) {
$ret = '';
$url =
$matches[2];
if (
emptyempty($url) )
return
$matches[0];
// removed
trailing [.,;:] from URL
if (
in_array(substr($url, -1), array('.', ',', ';', ':')) === true )
{
$ret =
substr($url, -1);
$url =
substr($url, 0, strlen($url)-1);
}
return
$matches[1] . "$url" . $ret;
}
function
_make_web_ftp_clickable_cb($matches) {
$ret = '';
$dest =
$matches[2];
$dest =
'http://' . $dest;
if (
emptyempty($dest) )
return
$matches[0];
// removed
trailing [,;:] from URL
if (
in_array(substr($dest, -1), array('.', ',', ';', ':')) === true )
{
$ret =
substr($dest, -1);
$dest =
substr($dest, 0, strlen($dest)-1);
}
return
$matches[1] . "$dest" . $ret;
}
function
_make_email_clickable_cb($matches) {
$email =
$matches[2] . '@' . $matches[3];
return
$matches[1] . "$email";
}
function
make_clickable($ret) {
$ret = ' ' .
$ret;
// in testing,
using arrays here was found to be faster
$ret =
preg_replace_callback('#([\s>])([\w]+?://[\w\\x80-\\xff\#$%&~/.\-;:=,?@\[\]+]*)#is',
'_make_url_clickable_cb',
$ret);
$ret =
preg_replace_callback('#([\s>])((www|ftp)\.[\w\\x80-\\xff\#$%&~/.\-;:=,?@\[\]+]*)#is',
'_make_web_ftp_clickable_cb',
$ret);
$ret =
preg_replace_callback('#([\s>])([.0-9a-z_+-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,})#i',
'_make_email_clickable_cb',
$ret);
// this one is
not in an array because we need it to run last, for cleanup
of accidental
links within links
$ret =
preg_replace("#(]+?>|>))]+?>([^>]+?)#i",
"$1$3",$ret);
$ret =
trim($ret);
return $ret;
}
五、創(chuàng)建數(shù)據(jù)URL
數(shù)據(jù)URL可以直接嵌入到HTML/CSS/JS中,以節(jié)省大量的HTTP請(qǐng)求。下面的這段代碼可利用$file輕松創(chuàng)建數(shù)據(jù)URL。
view sourceprint?
function
data_uri($file, $mime) {
$contents=file_get_contents($file);
$=_encode($contents);
echo
"data:$mime;,$";
}
六、從服務(wù)器上下載&保存一個(gè)遠(yuǎn)程圖片
當(dāng)你在利用php程序搭建網(wǎng)站時(shí),從遠(yuǎn)程服務(wù)器下載某張圖片并且將其保存在自己的服務(wù)器上,這一操作會(huì)經(jīng)常用到。代碼如下:
view sourceprint?
$p_w_picpath =
file_get_contents('');
file_put_contents('/p_w_picpaths/p_w_picpath.jpg',
$p_w_picpath);//Where to save the
p_w_picpath
七、移除Remove Microsoft Word HTML Tag
當(dāng)你使用Microsoft Word會(huì)創(chuàng)建許多Tag,比如font,span,style,class等。這些標(biāo)簽對(duì)于Word本身而言是非常有用的,但是當(dāng)你從Word粘貼至網(wǎng)頁時(shí),你會(huì)發(fā)現(xiàn)很多無用的Tag。因此,下面的這段代碼可幫助你刪除所有無用的Word HTML Tag。
view sourceprint?
function
cleanHTML($html) {
///
/// Removes all
FONT and SPAN tags, and all Class and Style
attributes.
/// Designed to
get rid of non-standard Microsoft Word HTML tags.
///
// start by
completely removing all unwanted tags
$html =
ereg_replace("<(/)?(font|span|del|ins)[^>]*>","",$html);
// then run
another pass over the html (twice), removing unwanted
attributes
$html =
ereg_replace("<([^>]*)(class|lang|style|size|face)=("[^"]*"|'[^']*'|[^>]+)([^>]*)>","<\1>",$html);
$html =
ereg_replace("<([^>]*)(class|lang|style|size|face)=("[^"]*"|'[^']*'|[^>]+)([^>]*)>","<\1>",$html);
return $html
}
八、檢測(cè)瀏覽器語言
如果你的網(wǎng)站上有多種語言,那么可以使用這段代碼作為默認(rèn)的語言來檢測(cè)瀏覽器語言。該段代碼將返回瀏覽器客戶端使用的初始語言。
view sourceprint?
function
get_client_language($availableLanguages,
$default='en'){
if
(isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
$langs=explode(',',$_SERVER['HTTP_ACCEPT_LANGUAGE']);
foreach ($langs
as $value){
$choice=substr($value,0,2);
if(in_array($choice,
$availableLanguages)){
return $choice;
}
}
}
return $default;
}
九、顯示Facebook粉絲數(shù)量
如果你的網(wǎng)站或者博客上有內(nèi)鏈的Facebook頁面,你或許想知道擁有多少粉絲。這段代碼將幫助你查看Facebook粉絲數(shù),記住,別忘了在你的頁面ID第二行添加該段代碼。
view sourceprint?
$page_id = "YOUR PAGE-ID";
$xml =
@simplexml_load_file("http://api.facebook.com/restserver.php?method=facebook.fql.query&;query=SELECT%20fan_count%20FROM%20page%20WHERE%20page_id=".$page_id."")or
die ("a
lot");
$fans =
$xml->page->fan_count;
echo $fans;
?>
結(jié)束語
要成為一個(gè)出色的程序員,掌握一些技巧,高效開發(fā)相關(guān)程序應(yīng)用,是必不可少的。以上分析的這9個(gè)代碼片段,如果你還是一個(gè)php新人,那么請(qǐng)你熟練掌握,在你要實(shí)現(xiàn)這些代碼對(duì)應(yīng)功能的時(shí)候,它們將大大的縮短你的開發(fā)時(shí)間,提高你的開發(fā)效率。
程序員杭州軟件測(cè)試杭州APP開發(fā)杭州PHP工程師
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