Posts Tagged PHP

PHP设置时区

Posted by gry in PHP on 2009年10月12日

PHP中用date获取的是服务器时间，如果你的服务器在中国，就不存在时差问题，如果在美国，就需设置默认时区，用以下代码即可解决。

?Download php_set_timezone.txt
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<?php
date_default_timezone_set("PRC");   //将时区设为中国(PRC)
$date=date("Y-m-d H:i:s");
?>
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PHP计算时差

Posted by gry in PHP on 2009年10月3日

计算时差不是件容易的事，因为日期-时间是多种进制混合在一起，需要转换成秒才能计算，比较麻烦，好在PHP提供了一个函数，能把一个时间（1970-2038之间的年）转换为相对 1970.01.01 0:0:0 的相对秒数值，这样就可以直接计算了。
函数格式：mktime(int hour, int minute, int second, int month, int day, int year);
Code（时间用yymmddhhiiss格式，无空格，如：20090123095946）

?Download php-calc-shicha.txt
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function calc_shicha($t2,$t1) {
  $y=substr($t1,0,4);$m=substr($t1,4,2);$d=substr($t1,6,2);$h=substr($t1,8,2);$i=substr($t1,10,2);$s=substr($t1,12,2);//分离t1
  $tt1=mktime($h,$i,$s,$m,$d,$y);
  $y=substr($t2,0,4);$m=substr($t2,4,2);$d=substr($t2,6,2);$h=substr($t2,8,2);$i=substr($t2,10,2);$s=substr($t2,12,2);//分离t2
  $tt2=mktime($h,$i,$s,$m,$d,$y);
  return($tt2-$tt1);
};
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PHP中设置Session过期的方法

Posted by gry in PHP on 2009年10月2日

Session的有效期是随浏览器进程的，浏览器关掉后就没了，那么怎么像Cookies那样设置过期时间呢？下面这段代码就可以实现。

?Download session_cookies.txt
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<?php
$cookies_life_time = 24 * 3600;   //过期时间，单位为秒，这里的设置即为一天
session_start();
setcookie(session_name() ,session_id(), time() + $cookies_life_time, "/");
?>
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一段PHP的UBB转换函数代码

Posted by gry in PHP on 2009年08月14日

?Download php-ubb2html.txt
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function toubb($str){
 $str=htmlspecialchars($str);
 //$str = str_replace("file:","file :",$str);
 //$str = str_replace("files:","files :",$str);
 //$str = str_replace("script:","script :",$str);
 //$str = str_replace("js:","js :",$str);
 
 //图片UBB
 $str = preg_replace("/\[img\](http|https|ftp):\/\/(.[^\[]*)\[\/img\]/i", "<a onfocus=\"this.blur()\" href=\"\${1}://\${2}\" target=new><img src=\"\${1}://\${2}\" border=\"0\" alt=\"按此在新窗口浏览图片\" onload=\"javascript:if(this.width>300)this.width=300\"></a>", $str);
 $str = preg_replace("/\[img=*([0-9]*),*([0-9]*)\](http|https|ftp):\/\/(.[^\[]*)\[\/img\]/i", "<a onfocus=\"this.blur()\" href=\"\${3}://\${4}\" target=new><img src=\"\${3}://\${4}\" border=\"0\"  width=\"\${1}\" heigh=\"\${2}\" alt=\"按此在新窗口浏览图片\" onload=\"javascript:if(this.width>300)this.width=300\"></a>", $str);
 
 $str = preg_replace("/(\[img\])images\/face\/em(.*?)\.gif(\[\/img\])/i", "<img src=\"images/face/em\${2}.gif\" />", $str);
 //链接UBB
 $str = preg_replace("/(\[url\])(.[^\[]*)(\[url\])/i", "<a href=\"\${2}\" target=\"new\">\${1}</a>", $str);
 $str = preg_replace("/\[url=(.[^\[]*)\]/i", "<a href=\"\${1}\" target=\"new\">", $str);
 //邮箱UBB
 $str = preg_replace("/(\[email\])(.*?)(\[\/email\])/i", "<img align=\"absmiddle\" \"src=image/email1.gif\"><a href=\"mailto:\${2}\">\${2}</a>", $str);
 $str = preg_replace("/\[email=(.[^\[]*)\]/i", "<img align=\"absmiddle\" src=\"image/email1.gif\"><a href=\"mailto:\${1}\" target=\"new\">", $str);
 //QQ号码UBB
 $str = preg_replace("/\[qq=([0-9]*)\]([0-9]*)\[\/qq\]/i", "<a target=\"new\" href=\"tencent://message/?uin=\${2}&Site=www.52515.net&Menu=yes\"><img border=\"0\" src=\"http://wpa.qq.com/pa?p=1:\${2}:\${1}\" alt=\"点击这里给我发消息\"></a>", $str);
 //颜色UBB
 $str = preg_replace("/\[color=(.[^\[]*)\]/i", "<font color=\"\${1}\">", $str);
 //文字字体UBB
 $str = preg_replace("/\[font=(.[^\[]*)\]/i", "<font face=\"\${1}\">", $str);
 //文字大小UBB
 $str = preg_replace("/\[size=([0-9]*)\]/i", "<font size=\"\${1}\">", $str);
 $str = preg_replace("/\[size=([0-9]*)pt\]/i", "<font size=\"\${1}\">", $str);
 $str = preg_replace("/\[size=([0-9]*)px\]/i", "<font size=\"\${1}\">", $str);
 //文字对齐方式UBB
 $str = preg_replace("/\[align=(center|left|right)\]/i", "<div align=\"\${1}\">", $str);
 //表格UBB
 //$str = preg_replace("/\[table=(.[^\[]*)\]/i", "<table width=\"\${1}\" border=\"1\" style=\"border-collapse:collapse\">", $str);
 //表格UBB2
 //$str = preg_replace("/\[td=([0-9]*),([0-9]*),([0-9]*)\]/i", "<td colspan=\"\${1}\" rowspan=\"\${2}\" width=\"\${3}\">", $str);
 //字体倾斜
 $str = preg_replace("/\[i\]((.|\n)*?)\[\/i\]/i", "<i>\${1}</i>", $str);
 //FLASH动画UBB
 $str = preg_replace("/(\[flash\])(http:\/\/.[^\[]*(.swf))(\[\/flash\])/i", "<a href=\"\${2}\" target=\"new\"><img src=\"image/swf.gif\" border=\"0\" alt=\"点击开新窗口欣赏该flash动画!\" height=\"16\" width=\"16\">[全屏欣赏]</a><br><center><object codebase=\"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=4,0,2,0\" classid=\"clsid:d27cdb6e-ae6d-11cf-96b8-444553540000\" width=\"300\" height=\"200\"><param name=\"movie\" value=\"\${2}\"><param name=\"quality\" value=\"high\"><embed src=\"\${2}\" quality=\"high\" pluginspage=\"http://www.macromedia.com/shockwave/download/index.cgi?p1_prod_version=shockwaveflash\" type=\"application/x-shockwave-flash\" width=\"300\" height=\"200\">\${2}</embed></object></center>", $str);
 $str = preg_replace("/(\[flash=*([0-9]*),*([0-9]*)\])(http:\/\/.[^\[]*(.swf))(\[\/flash\])/i", "<a href=\"\${4}\" target=\"new\"><img src=\"image/swf.gif\" border=\"0\" alt=\"点击开新窗口欣赏该flash动画!\" height=\"16\" width=\"16\">[全屏欣赏]</a><br><center><object codebase=\"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=4,0,2,0\" classid=\"clsid:d27cdb6e-ae6d-11cf-96b8-444553540000\" width=\"\${2}\" height=\"\${3}\"><param name=\"movie\" value=\"\${4}\"><param name=quality value=high><embed src=\"\${4}\" quality=\"high\" pluginspage=\"http://www.macromedia.com/shockwave/download/index.cgi?p1_prod_version=shockwaveflash\" type=\"application/x-shockwave-flash\" width=\"\${2}\" height=\"\${3}\">\${4}</embed></object></center>", $str);
 
 //MEDIA PLAY播放UBB
 $str = preg_replace("/\[wmv\](.[^\[]*)\[\/wmv]/i", "<object align=\"middle\" classid=\"clsid:22d6f312-b0f6-11d0-94ab-0080c74c7e95\" class=\"object\" id=\"mediaplayer\" width=\"300\" height=\"200\" ><param name=\"showstatusbar\" value=\"-1\"><param name=\"filename\" value=\"\${1}\"><embed type=\"application/x-oleobject\" codebase=\"http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#version=5,1,52,701\" flename=\"mp\" src=\"\${1}\"  width=\"300\" height=\"200\"></embed></object>", $str);
 $str = preg_replace("/\[wmv=*([0-9]*),*([0-9]*)\](.[^\[]*)\[\/wmv]/i", "<object align=\"middle\" classid=\"clsid:22d6f312-b0f6-11d0-94ab-0080c74c7e95\" class=\"object\" id=\"mediaplayer\" width=\"\${1}\" height=\"\${2}\" ><param name=\"showstatusbar\" value=\"-1\"><param name=\"filename\" value=\"\${3}\"><embed type=\"application/x-oleobject\" codebase=\"http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#version=5,1,52,701\" flename=\"mp\" src=\"\${3}\"  width=\"\${1}\" height=\"\${2}\"></embed></object>", $str);
 
 //REALPLAY 播放UBB
 $str = preg_replace("/\[rm\](.[^\[]*)\[\/rm]/i", "<object classid=\"clsid:cfcdaa03-8be4-11cf-b84b-0020afbbccfa\" class=\"object\" id=\"raocx\" width=\"300\" height=\"200\"><param name=\"src\" value=\"\${1}\"><param name=\"console\" value=\"clip1\"><param name=\"controls\" value=\"imagewindow\"><param name=\"autostart\" value=\"true\"></object><br><object classid=\"clsid:cfcdaa03-8be4-11cf-b84b-0020afbbccfa\" height=\"32\" id=\"video2\" width=\"300\"><param name=\"src\" value=\"\${1}\"><param name=\"autostart\" value=\"-1\"><param name=\"controls\" value=\"controlpanel\"><param name=\"console\" value=\"clip1\"></object>", $str);
 $str = preg_replace("/\[rm=*([0-9]*),*([0-9]*)\](.[^\[]*)\[\/rm]/i", "<object classid=\"clsid:cfcdaa03-8be4-11cf-b84b-0020afbbccfa\" class=\"object\" id=\"raocx\" width=\"\${1}\" height=\"\${2}\"><param name=\"src\" value=\"\${3}\"><param name=\"console\" value=\"clip1\"><param name=\"controls\" value=\"imagewindow\"><param name=\"autostart\" value=\"true\"></object><br><object classid=\"clsid:cfcdaa03-8be4-11cf-b84b-0020afbbccfa\" height=\"32\" id=\"video2\" width=\"\${1}\"><param name=\"src\" value=\"\${3}\"><param name=\"autostart\" value=\"-1\"><param name=\"controls\" value=\"controlpanel\"><param name=\"console\" value=\"clip1\"></object>", $str);
    $str = str_replace("\r\n", "<BR/>", $str);
 $str = preg_replace("/\[rm=*([0-9]*),*([0-9]*)\](.[^\[]*)\[\/rm]/i", "<object classid=\"clsid:cfcdaa03-8be4-11cf-b84b-0020afbbccfa\" class=\"object\" id=\"raocx\" width=\"\${1}\" height=\"\${2}\"><param name=\"src\" value=\"\${3}\"><param name=\"console\" value=\"clip1\"><param name=\"controls\" value=\"imagewindow\"><param name=\"autostart\" value=\"true\"></object><br><object classid=\"clsid:cfcdaa03-8be4-11cf-b84b-0020afbbccfa\" height=\"32\" id=\"video2\" width=\"\${1}\"><param name=\"src\" value=\"\${3}\"><param name=\"autostart\" value=\"-1\"><param name=\"controls\" value=\"controlpanel\"><param name=\"console\" value=\"clip1\"></object>", $str);
/*
 re.pattern="\[code\]((.|\n)*?)\[\/code\]"
 Set tempcodes=re.Execute($str)
 For i=0 To tempcodes.count-1
   re.pattern="<BR/>"
   tempcode=Replace(tempcodes(i),"<BR/>",vbcrlf)
   $str=replace($str,tempcodes(i),tempcode)
 next
*/
    $searcharray = array("[/url]","[/email]","[/color]", "[/size]", "[/font]", "[/align]", "[b]", "[/b]","[u]", "[/u]", "[list]", "[list=1]", "[list=a]","[list=A]", "[*]", "[/list]", "[indent]", "[/indent]","[ DISCUZ_CODE_0 ]","[quote]","[/quote]","[tr]","[td]","[/td]","[/tr]","[/table]");
 $replacearray= array("</a>","</a>","</font>", "</font>", "</font>", "</div>", "<b>", "</b>","<u>", "</u>", "<ul>", "<ol type=1>", "<ol type=a>","<ol type=A>", "<li>", "</ul></ol>", "<blockquote>", "</blockquote>","<div><textarea name=\"codes\" id=\"codes\" rows=\"12\" cols=\"65\">","</textarea><br/><input type=\"button\" value=\"运行代码\" onclick=\"RunCode()\"> <input type=\"button\" value=\"复制代码\" onclick=\"CopyCode()\"> <input type=\"button\" value=\"另存代码\" onclick=\"SaveCode()\"> <input type=\"button\" value=\"跳&nbsp;&nbsp;转\" onclick=\"Goto(prompt('请输入要跳转到第几行？','1'))\"  accesskey=\"g\"> &nbsp;提示：您可以先修改部分代码再运行</div>","<div style=\"background:#E2F2FF;width:90%;height:auto;border:1px solid #3CAAEC;padding:5px;\">","</div>","<tr>","<td>","</td>","</tr>","</table>");
 for ($i=0; $i<count($searcharray); $i++){
  $str = str_replace($searcharray[$i], $replacearray[$i], $str);
 }
 return $str;
}
/*
 're.Pattern="\[UPLOAD=(gif|jpg|jpeg|bmp)\](.[^\[]*)(gif|jpg|jpeg|bmp)\[\/UPLOAD\]"
 '$str= re.Replace($str,"<br><IMG SRC=\"image/$1.gif\" border=0>此主题相关链接如下：<br><A HREF=\"$2$1\" TARGET=_blank><IMG SRC=\"$2$1\" border=0 alt=按此在新窗口浏览图片 onload=\"javascript:if(this.width>screen.width-333)this.width=screen.width-333\"></A>")
 're.Pattern="\[UPLOAD=(doc|xls|ppt|htm|swf|rar|zip|exe)\](.[^\[]*)(doc|xls|ppt|htm|swf|rar|zip|exe)\[\/UPLOAD\]"
 '$str= re.Replace($str,"<br><IMG SRC=\"image/$1.gif\" border=0>此主题相关链接如下：<br><a href=\"$2$1\" target='_blank'>点击浏览该文件</a>")
 '自动识别网址
 're.Pattern = "^((http|https|ftp|rtsp|mms):(\/\/|\\\\)[A-Za-z0-9\./=\?%\-&_~`@[\]\':+!]+)"
 '$str = re.Replace($str,"<img align=absmiddle src=image/url.gif border=0><a target=_blank href=$1>$1</a>")
 're.Pattern = "((http|https|ftp|rtsp|mms):(\/\/|\\\\)[A-Za-z0-9\./=\?%\-&_~`@[\]\':+!]+)$"
 '$str = re.Replace($str,"<img align=absmiddle src=image/url.gif border=0><a target=_blank href=$1>$1</a>")
 're.Pattern = "([^>=\"])((http|https|ftp|rtsp|mms):(\/\/|\\\\)[A-Za-z0-9\./=\?%\-&_~`@[\]\':+!]+)"
 '$str = re.Replace($str,"$1<img align=absmiddle src=image/url.gif border=0><a target=_blank href=$2>$2</a>")
 '自动识别www等开头的网址
 're.Pattern = "([^(http://|http:\\)])((www|cn)[.](\w)+[.]{1,}(net|com|cn|org|cc)(((\/[\~]*|\\[\~]*)(\w)+)|[.](\w)+)*(((([?](\w)+){1}[=]*))*((\w)+){1}([\&](\w)+[\=](\w)+)*)*)"
 '$str = re.Replace($str,"<img align=absmiddle src=image/url.gif border=0><a target=_blank href=http://$2>$2</a>")
 're.Pattern="\[SHADOW=*([0-9]*),*(#*[a-z0-9]*),*([0-9]*)\](.[^\[]*)\[\/SHADOW]"
 '$str=re.Replace($str,"<div style=\"width:$1;filter:shadow(color=$2, strength=$3)\">$4</div>")
 're.Pattern="\[GLOW=*([0-9]*),*(#*[a-z0-9]*),*([0-9]*)\](.[^\[]*)\[\/GLOW]"
 '$str=re.Replace($str,"<div style=\"width:$1;filter:glow(color=$2, strength=$3)\">$4</div>")
*/
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