Favorites PHP Common custom functions

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function GetIP () {//Get IP


if ($_server["http_x_forwarded_for"])


$ip = $_server["Http_x_forwarded_for"]; OSPHP.com.CN


else if ($_server["HTTP_CLIENT_IP"])


$ip = $_server["Http_client_ip"];


else if ($_server["REMOTE_ADDR"])


$ip = $_server["REMOTE_ADDR"];


else if (getenv ("Http_x_forwarded_for"))


$ip = getenv ("Http_x_forwarded_for");


else if (getenv ("Http_client_ip"))


$ip = getenv ("Http_client_ip");


else if (getenv ("REMOTE_ADDR"))


$ip = getenv ("REMOTE_ADDR");


Else


$ip = "Unknown";


return $IP;


}


?>

<?php
function DateAdd ($date, $int, $unit = "D") {//Time increase (can also be improved as time and minutes can be increased, time to fill)
$DATEARR = Explode ("-", $date);
$value [$unit] = $int; OSPHP.COm.CN
Return date ("Y-m-d", Mktime (0,0,0, $DATEARR [1] + $value [' m '], $DATEARR [2] + $value [' d '], $DATEARR [0] + $value [' Y ']));
}

function Getweekday ($date) {//Calculate the date given is the day of the week
$DATEARR = Explode ("-", $date);
Return Date ("W", Mktime (0,0,0, $DATEARR [1], $DATEARR [2], $DATEARR [0])); OsPHP.COM.CN
}
?>

?


function Check_date ($date) {//check date is legal date


$DATEARR = Explode ("-", $date);


if (is_numeric ($dateArr [0]) &amp;&amp; is_numeric ($DATEARR [1]) &amp;&amp; is_numeric ($DATEARR [2])) {


return Checkdate ($DATEARR [1], $DATEARR [2], $DATEARR [0]);


}


return false;


}


function Check_time ($time) {//Check time is legal time


$TIMEARR = Explode (":", $time);


if (is_numeric ($timeArr [0]) &amp;&amp; is_numeric ($TIMEARR [1]) &amp;&amp; is_numeric ($TIMEARR [2])) {// Open Source Code OSPhP.COm.CN


if ($timeArr [0] &gt;= 0 &amp;&amp; $timeArr [0] &lt;=) &amp;&amp; ($TIMEARR [1] &gt;= 0 &amp;&amp; $timeArr [1] &lt;= 59) &amp;&amp; ($TIMEARR [2] &gt;= 0 &amp;&amp; $timeArr [2] &lt;= 59))


return true;


Else


return false;


}


return false;


}

function DateDiff ($date 1, $date 2, $unit = "") {//Time comparison function, return two date difference a few seconds, minutes, hours or days


Switch ($unit) {


Case ' s ':


$dividend = 1;


Break


Case ' I ':


$dividend = 60;


Break


Case ' H ':


$dividend = 3600;


Break


Case ' d ':


$dividend = 86400;


Break


Default


$dividend = 86400;


}


$time 1 = strtotime ($date 1);


$time 2 = strtotime ($date 2);


if ($time 1 &amp;&amp; $time 2)


return (float) ($time 1-$time 2)/$dividend;


return false;


}

?>

PHP redirect
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Method One: Header ("Location:index.php");
Method Two: echo "<scrīpt>window.location =" $PHP _self ";</scrīpt>"; PHP Open Source Code
Method Three: Echo "<meta http-equiv=" Refresh "content=" 0; Url=index.php ">";

?>

Get Visitor Browser


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function Browse_infor ()


{


$browser = ""; $browserver = "";


$Browsers =array ("Lynx", "MOSAIC", "AOL", "Opera", "JAVA", "Macweb", "Webexplorer", "OmniWeb");


$Agent = $GLOBALS ["Http_user_agent"];


For ($i =0 $i &lt;=7; $i + +)


{


if (Strpos ($Agent, $Browsers [$i])


{


$browser = $Browsers [$i];


$browserver = "";


}


}


if (Ereg ("Mozilla", $Agent) &amp;&amp;!ereg ("MSIE", $Agent))


{


$temp =explode ("(", $Agent); $Part = $temp [0];


$temp =explode ("/", $Part); $browserver = $temp [1]; Open Source Code OSPhP.COm.CN


$temp =explode ("", $browserver); $browserver = $temp [0];


$browserver =preg_replace ("/([D.] +)/"," 1 ", $browserver);


$browserver = "$browserver"; OSPHP.COM.CN


$browser = "Netscape Navigator";


}


if (Ereg ("Mozilla", $Agent) &amp;&amp; ereg ("Opera", $Agent))


{


$temp =explode ("(", $Agent); $Part = $temp [1]; OSPHP.COM.Cn Open Source


$temp =explode (")", $Part); $browserver = $temp [1];


$temp =explode ("", $browserver); $browserver = $temp [2];


$browserver =preg_replace ("/([D.] +)/"," 1 ", $browserver);


$browserver = "$browserver";


$browser = "Opera";


}


if (Ereg ("Mozilla", $Agent) &amp;&amp; ereg ("MSIE", $Agent))


{


$temp = Explode ("(", $Agent); $Part = $temp [1];


$temp = Explode (";", $Part); $Part = $temp [1];


$temp = Explode ("", $Part); $browserver = $temp [2];


$browserver =preg_replace ("/([D.] +)/"," 1 ", $browserver);


$browserver = "$browserver"; OSPHP.COM.Cn Open Source


$browser = "Internet Explorer";


}


if ($browser!= "")


{


$browseinfo = "$browser $browserver";


}


Else


{


$browseinfo = "Unknown";


}


return $browseinfo;


}


Call Method $browser=browseinfo (), return results directly

?>

Get the visitor's operating system


?


function Osinfo () {


$os = "";


$Agent = $GLOBALS ["Http_user_agent"];


if (eregi (' win ', $Agent) &amp;&amp; strpos ($Agent, ' 95 ')) {//Open source OSPhP.COM.CN


$os = "Windows 95";


}


ElseIf (Eregi (' Win 9x ', $Agent) &amp;&amp; strpos ($Agent, ' 4.90 ')) {


$os = "Windows ME";


}


ElseIf (' Win ', $Agent) &amp;&amp; ereg (' Eregi ', $Agent)) {


$os = "Windows 98";


}


ElseIf (eregi (' win ', $Agent) &amp;&amp; eregi (' NT 5.0 ', $Agent)) {


$os = "Windows 2000";


}


ElseIf (eregi (' win ', $Agent) &amp;&amp; eregi (' NT ', $Agent)) {


$os = "Windows NT";


}


ElseIf (eregi (' win ', $Agent) &amp;&amp; eregi (' NT 5.1 ', $Agent)) {


$os = "Windows XP";


}


ElseIf (' Win ', $Agent) &amp;&amp; ereg (' Eregi ', $Agent)) {//php Open source code


$os = "Windows 32";


}


ElseIf (eregi (' Linux ', $Agent)) {


$os = "Linux";


}


ElseIf (eregi (' Unix ', $Agent)) {


$os = "Unix";


}


ElseIf (Eregi (' Sun ', $Agent) &amp;&amp; eregi (' OS ', $Agent)) {


$os = "SunOS";


}


ElseIf (eregi (' IBM ', $Agent) &amp;&amp; eregi (' OS ', $Agent)) {


$os = "IBM os/2";


}


ElseIf (eregi (' Mac ', $Agent) &amp;&amp; eregi (' PC ', $Agent)) {


$os = "Macintosh";


}


ElseIf (eregi (' PowerPC ', $Agent)) {


$os = "PowerPC";


}


ElseIf (eregi (' AIX ', $Agent)) {


$os = "AIX";


}


ElseIf (eregi (' HPUX ', $Agent)) {


$os = "HPUX";


}


ElseIf (eregi (' NetBSD ', $Agent)) {


$os = "NetBSD";


}


ElseIf (eregi (' BSD ', $Agent)) {


$os = "BSD";


}


ElseIf (Ereg (' OSF1 ', $Agent)) {


$os = "OSF1";


}


ElseIf (Ereg (' IRIX ', $Agent)) {


$os = "IRIX";


}


ElseIf (eregi (' FreeBSD ', $Agent)) {


$os = "FreeBSD";


}


if ($os = = ") $os =" Unknown ";


return $os;


}


Call Method $os=os_infor ();

?>

File Format class
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$mime _types = Array (
' gif ' => ' image/gif ',
' jpg ' => ' image/jpeg ',
' JPEG ' => ' image/jpeg ',
' Jpe ' => ' image/jpeg ',
' BMP ' => ' image/bmp ',
' PNG ' => ' image/png ',
' tif ' => ' Image/tiff ',//osphp.com.cn
' TIFF ' => ' Image/tiff ',
' Pict ' => ' image/x-pict ',
' Pic ' => ' image/x-pict ',
' pct ' => ' image/x-pict ',
' tif ' => ' Image/tiff ',
' TIFF ' => ' Image/tiff ',
' PSD ' => ' image/x-photoshop ',

' swf ' => ' Application/x-shockwave-flash ',
' JS ' => ' application/x-javascrīpt ',
' PDF ' => ' application/pdf ',
' ps ' => ' application/postscrīpt ',
' EPS ' => ' application/postscrīpt ',
' AI ' => ' application/postscrīpt ',
' WMF ' => ' application/x-msmetafile ',

' CSS ' => ' text/css ',
' htm ' => ' text/html ',
' HTML ' => ' text/html ',
' txt ' => ' text/plain ',
' xml ' => ' Text/xml ',
' WML ' => ' text/wml ',
' Wbmp ' => ' image/vnd.wap.wbmp ',

' Mid ' => ' Audio/midi ',
' WAV ' => ' audio/wav ',
' mp3 ' => ' audio/mpeg ',
' MP2 ' => ' audio/mpeg ',

' avi ' => ' Video/x-msvideo ',
' MPEG ' => ' video/mpeg ',
' mpg ' => ' video/mpeg ',
' Qt ' => ' video/quicktime ',
' mov ' => ' video/quicktime ',

' Lha ' => ' Application/x-lha ',
' Lzh ' => ' Application/x-lha ',
' Z ' => ' application/x-compress ',
' Gtar ' => ' Application/x-gtar ',
' GZ ' => ' application/x-gzip ',
' gzip ' => ' application/x-gzip ',
' tgz ' => ' application/x-gzip ',
' Tar ' => ' Application/x-tar ',
' bz2 ' => ' application/bzip2 ',
' Zip ' => ' application/zip ',
' Arj ' => ' Application/x-arj ',
' rar ' => ' application/x-rar-compressed ',

' hqx ' => ' application/mac-binhex40 ',
' Sit ' => ' application/x-stuffit ',
' Bin ' => ' application/x-macbinary ',

' UU ' => ' Text/x-uuencode ',
' Uue ' => ' Text/x-uuencode ',

' Latex ' => ' Application/x-latex ',
' Ltx ' => ' Application/x-latex ',
' Tcl ' => ' application/x-tcl ',

' PGP ' => ' APPLICATION/PGP ',
' ASC ' => ' APPLICATION/PGP ',
' exe ' => ' application/x-msdownload ',
' Doc ' => ' Application/msword ',//Open source OSPhP.COM.CN
' RTF ' => ' application/rtf ',
' xls ' => ' application/vnd.ms-excel ',
' ppt ' => ' application/vnd.ms-powerpoint ',
' MDB ' => ' application/x-msaccess ',
' WRI ' => ' application/x-mswrite ',
);

?>

PHP generates Excel documents
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Header ("Content-type:application/vnd.ms-excel");
Header ("Content-disposition:filename=test.xls");
echo "TEST1T";
echo "Test2tn";
echo "TEST1T";
echo "Test2tn";
echo "TEST1T";
echo "Test2tn";
echo "TEST1T";
echo "Test2tn";
echo "TEST1T";
echo "Test2tn";
echo "TEST1T";
echo "Test2tn";
Change the file header to output the. doc. xls file format

?>

Time comparison issues
Give a simple example to illustrate: for example, a forum on the day posted posts with new pictures marked. Open Source OSPhP.COM.CN
Method One:
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$db->rows[$i][date] is the value of the DateTime field in the database.
$today =time ();
$theDay =date ("y-m-d h:i:s", $today -24*3600);
$newTag = $db->rows[$i][date]>= $theDay? " ': ""; OSPHP.com.CN
Method Two:
$newTag = $db->rows[$i][date]>=date ("y-m-d 00:00:00")? ': "";

?>

Extracts the page and the browser submits the variable, the function is equivalent causes the php.ini to open the global variable//osphp.com.cn
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@extract ($_server, Extr_skip);
@extract ($_session, Extr_skip);
@extract ($_post, Extr_skip);
@extract ($_files, Extr_skip);
@extract ($_get, Extr_skip);
@extract ($_env, Extr_skip);

?>

Reading file functions
?
function ReadFromFile ($file _name) {
if (file_exists ($file _name)) {
$filenum =fopen ($file _name, "R");
Flock ($filenum, LOCK_EX);
$file _data=fread ($filenum, FileSize ($file _name));
Rewind ($filenum); OSPHP.COM.CN
Fclose ($filenum);
return $file _data;
}
}

?>

Write to a file function
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function WriteToFile ($file _name, $data, $method = "W") {
$filenum =fopen ($file _name, $method);
Flock ($filenum, LOCK_EX);
$file _data=fwrite ($filenum, $data);
Fclose ($filenum);
return $file _data;
}

?>

Open Source Code OSPhP.COm.CN


Page Quick Turn


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function Turntopage ($url = "index.php", $info = "page shift ...", $second =2) {


Print "&lt;html&gt;n&lt;head&gt;n&lt;title&gt; page shift ... &lt;/title&gt;n";


Print "&lt;meta http-equiv=" Refresh "content=" $second; url= $url "&gt;n";


Print "&lt;style type=" text/css "&gt;n&lt;!--n";


Print "TD {Font-family:" Verdana "," Arial "; Font-size:12px}n";


Print "A {COLOR: #000000; Text-decoration:none}n ";


print "--&gt;n&lt;/style&gt;n";


print "&lt;/head&gt;n&lt;body&gt;n";


Print "&lt;table width=" 100% "border=" 0 "align=" center "&gt;n";


print "&lt;tr&gt;n";


Print "&lt;td height=" "&gt; &lt;/td&gt;n";


print "&lt;/tr&gt;n";


print "&lt;tr&gt;n";


Print "&LT;TD align=" center "&gt;n";


Print "&lt;table width=" 60% "border=" 0 "cellpadding=" 8 "bgcolor=" #AA9FFF "&gt;n"; OSPHP.COm.CN


print "&lt;tr&gt;n";


Print "&lt;td height=" align= "Center" &gt; page turn to hint information &lt;/td&gt;n ";


print "&lt;/tr&gt;n";


print "&lt;tr&gt;n";


Print "&LT;TD align=" center "&gt; $info &lt;/td&gt;n";


print "&lt;/tr&gt;n"; OsPHP.COM.CN


print "&lt;tr&gt;n";


Print "&LT;TD align=" center "&gt;n";


Print "&lt;a href=" $url &gt; if your browser does not support automatic jump, please click here &lt;/a&gt;&lt;/td&gt;n ";


print "&lt;/tr&gt;n";


print "&lt;/tr&gt;n";


print "&lt;/table&gt;&lt;/td&gt;n";


print "&lt;/tr&gt;n";


print "&lt;tr&gt;n";


Print "&lt;td height=" "&gt; &lt;/td&gt;n";


print "&lt;/tr&gt;n";


print "&lt;/table&gt;n";


print "&lt;/body&gt;n&lt;/html&gt;";


Exit


?&gt;

Generating random String functions
?
function Random ($length) {
$hash = @#@#;
$chars = @ #ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz @#;
$max = strlen ($chars)-1;
Mt_srand (Double) microtime () * 1000000);
for ($i = 0; $i < $length; $i + +) {//php Open source code
$hash. = $chars [Mt_rand (0, $max)];
}
return $hash;
}

?>

Intercepts a certain length of string (this function is valid for GB2312 use)


?


function Wordscut ($string, $length, $sss =0) {


if (strlen ($string) &gt; $length) {


if ($sss) {


$length = $length-3;


$addstr =@# ... @#; Open Source Code OSPhP.COm.CN


}


for ($i = 0; $i &lt; $length; $i + +) {


if (Ord ($string [$i]) &gt; 127) {


$wordscut. = $string [$i]. $string [$i + 1]; OSPHP.COM.CN


$i + +;


} else {


$wordscut. = $string [$i];


}


}


return $wordscut. $addstr;


}


return $string;


}

?>

Get Client IP Address


?


function GetIP () {


if (getenv ("Http_client_ip") &amp;&amp; strcasecmp (getenv ("Http_client_ip"), "Unknown")


$ip = getenv ("Http_client_ip");


else if (getenv ("Http_x_forwarded_for") &amp;&amp; strcasecmp (getenv ("Http_x_forwarded_for"), "Unknown")


$ip = getenv ("Http_x_forwarded_for"); OSPHP.COM.CN


else if (getenv ("REMOTE_ADDR") &amp;&amp; strcasecmp (getenv ("REMOTE_ADDR"), "Unknown")


$ip = getenv ("REMOTE_ADDR");


else if (isset ($_server[@ #REMOTE_ADDR @#]) &amp;&amp; $_server[@ #REMOTE_ADDR @#] &amp;&amp; strcasecmp ($_server[@# remote_addr@#], "unknown")


$ip = $_server[@ #REMOTE_ADDR @#];


Else


$ip = "Unknown";

return ($IP);
}

?>
PHP Open Source Code

Determine your email address
?
function Checkemail ($inAddress)
{
Return (Ereg ("^ ([a-za-z0-9_-]) +@" ([a-za-z0-9_-]) + (. [ A-za-z0-9_-]) + ", $inAddress));
}

?>

Paging (two functions used together)


?


function GetPage ($sql, $page _size=20)


{


Global $page, $totalpage, $sums; Out param


$page = $_get["page"];


$eachpage = $page _size;


$pagesql = Strstr ($sql, "from");


$pagesql = "SELECT count (*) as IDs". $pagesql;


$result = mysql_query ($pagesql);


if ($rs = mysql_fetch_array ($result)) $sums = $rs [0];


$totalpage = Ceil ($sums/$page _size);


if ((! $page) ($page &lt;1)) $page = 1;


$startpos = ($page-1) * $page _size;


$sql. = "Limit $startpos, $page _size";


return $sql;


}


function Showbar ($string = "")


{


Global $page, $totalpage;


$out = "Altogether &lt;font". $totalpage. " color=@ #red @#&gt;&lt;b&gt; ". $totalpage." &lt;/b&gt;&lt;/font&gt; page ";


$linkNum = 4;


$start = ($page-round ($linkNum/2)) &gt;0? ($page-round ($linkNum/2)): "1";


$end = ($page +round ($linkNum/2)) &lt; $totalpage? ($page +round ($linkNum/2)): $totalpage;


$prestart = $start-1;


$nextend = $end +1;


if ($page &lt;&gt;1)


$out. = "&lt;a href=@#?page=1&amp;&amp;". $string. " @ #title = First page &gt; first page &lt;/a&gt; ";


if ($start &gt;1)


$out. = "&lt;a href=@#?page=". $prestart. " @# title= Previous Page "... &lt;&lt;&lt;/a&gt; ";

for ($t = $start; $t <= $end; $t + +)
{
$out. = ($page = = $t)? "<font [". $t. "] color=@ #red @#><b>[". $t."] </b></font> ":" <a $thref =@#?page= $t && ". $string." @#> $t </a> ";
}
if ($end < $totalpage)
$out. = "<a href=@#?page=". $nextend. " && ". $string." @# title= next page >>> </a> ";
if ($page <> $totalpage)
$out. = "<a href=@#?page=". $totalpage. " && ". $string." @# title= last page > last page </a> "; Open Source OSPhP.COM.CN
return $out;
}

?>

Gets the ID of the newly inserted data
?
MYSQL_INSERT_ID ();
?>

Get the current script URL


?


function Get_php_url () {


if (!empty ($_server["Request_uri"])) {


$scriptName = $_server["Request_uri"];


$nowurl = $scriptName;


}else{


$scriptName = $_server["Php_self"];


if (Empty ($_server["query_string")) $nowurl = $scriptName;


else $nowurl = $scriptName. "?" $_server["Query_string"];


}


return $nowurl;


}

?>

Convert full-width digits to half-width digits
?
function Getalabnum ($fnum) {
$nums = Array ("0", "1", "2", "3", "4", "5", "6", "7", "8", "9");
$fnums = "0123456789";
For ($i =0 $i <=9; $i + +) $fnum = Str_replace ($nums [$i], $fnums [$i], $fnum);
$fnum = Ereg_replace ("[^0-9.]| ^0{1,} "," ", $fnum);
if ($fnum = = "") $fnum = 0;
return $fnum;
}

?>

Remove HTML tags
?
function text2html ($txt) {
$txt = Str_replace ("", "", $txt);
$txt = Str_replace ("<", "&lt;", $txt);
$txt = Str_replace (">", "&gt;", $txt);
$txt = Preg_replace ("/[rn]{1,}/isu", "
RN ", $txt);
return $txt;
}

?>

Convert a relative path into an absolute path
?
function Relative_to_absolute ($content, $feed _url) {
Preg_match ('/(HTTP|HTTPS|FTP):///', $feed _url, $protocol);
$server _url = Preg_replace ("/(http|https|ftp|news):///", "", $feed _url);
$server _url = preg_replace ("//.*/", "", $server _url);

if ($server _url = = ") {
return $content;
}

if (isset ($protocol [0])) {
$new _content = preg_replace ('/href= '//', ' href= '. $protocol [0]. $server _url. ' /', $content);
$new _content = preg_replace ('/src= '//', ' src= '. $protocol [0]. $server _url. ' /', $new _content);
} else {
$new _content = $content;
}
return $new _content;
}

?>

Get all Links
?
function Get_all_url ($code) {
Preg_match_all ('/<as+href=[' | ')? ([^> "']+") ["|']?  S*[^>]*> ([^>]+) </a>/i ', $code, $arr); OsPHP.COM.CN
Return Array (' name ' => $arr [2], ' URL ' => $arr [1]);
}

?>

&NBSP
//html each row of the table to a CSV format array
.?
Function Get_tr_array ($table) {
        $table = preg_replace ("' <td[^ >]*?> ' si ', ' "', $table);
        $table = Str_replace ("</td>", ' ", ', $table);
        $table = Str_replace ("</tr>", "{tr}", $table);
       //Remove HTML tags  
        $ Table = Preg_replace ("' <[/!] *? [^<>]*?> ' Si ', "", $table);
       //Remove white space characters   
         $table = Preg_replace ("' ([RN]) [s]+ '", "", $table);
        $table = Str_replace ("", "", $table);
        $table = Str_replace ("", "", $table);

$table = Explode (", {tr}", $table);
Array_pop ($table);
return $table;
}

?>

To convert each row of HTML tables into an array, collect tabular data


?


function Get_td_array ($table) {


$table = Preg_replace ("' &lt;table[^&gt;]*?&gt; ' si", "", $table); Open Source Code OSPhP.COm.CN


$table = Preg_replace ("' &lt;tr[^&gt;]*?&gt; ' si", "", $table);


$table = Preg_replace ("' &lt;td[^&gt;]*?&gt; ' si", "", $table);


$table = Str_replace ("&lt;/tr&gt;", "{tr}", $table); Open Source Code OSPHP.COM.Cn


$table = Str_replace ("&lt;/td&gt;", "{td}", $table);


Get rid of HTML tags


$table = Preg_replace ("' &lt;[/!] *? [^&lt;&gt;]*?&gt; ' Si ', "", $table);


Remove white space characters


$table = Preg_replace ("' ([RN]) [s]+ '", "", $table);


$table = Str_replace ("", "", $table);


$table = Str_replace ("", "", $table);





$table = Explode (' {tr} ', $table);


Array_pop ($table); OSPHP.COM.Cn Open Source


foreach ($table as $key =&gt; $tr) {


$TD = Explode (' {TD} ', $TR);


Array_pop ($TD);


$TD _array[] = $TD;


}


return $TD _array;


}

?>

Returns all words in a string $distinct =true remove Duplicates
?
function Split_en_str ($str, $distinct =true) {
Preg_match_all ('/([a-za-z]+)/', $STR, $match);
if ($distinct = = True) {
$match [1] = Array_unique ($match [1]);
}
Sort ($match [1]);
return $match [1];
}
?>

Print out a list of people who contribute to this PHP project
?
String phpcredits (void)

?>